JP2000066290A - Imaging device and storage medium - Google Patents

Abstract

(57) [Summary] An object of the present invention is to obtain a depth of field in a depth direction from a shooting target surface of a subject in accordance with designated shooting conditions, and to provide information indicating the obtained depth of field. The purpose of this is to clearly display the depth of field of a subject before shooting by displaying it together with the shooting target surface of the subject. SOLUTION: A CPU 101 extracts lens information (zoom, focus, iris) necessary for “frontal photographing” of a subject from a photographing condition table, and passes the lens information to a photographing control device 30 as an automatic adjustment value. Calculate the front depth, just focus, and back depth when shooting the front of the subject, and when the calculation result is obtained, each line of the depth of field is superimposed on the top surface image data of the subject previously saved in the shot image file The lens information for front photographing is adjusted in accordance with the photographing condition arbitrarily designated by the user within the range of the line indicating the depth of field, and the adjustment value is displayed. To the photographing control device 30 to execute the front photographing of the subject.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a photographing apparatus for automatically adjusting photographing parameters in accordance with designated photographing conditions, and more particularly to photographing a depth of field in a depth direction from a photographing target surface of a subject. The present invention relates to a photographing device to be displayed on a screen and a storage medium storing a display control program therefor.

[0002]

2. Description of the Related Art Conventionally, in a device having a driving mechanism and a control unit for controlling the driving mechanism, the driving mechanism includes a motor for driving each driving unit, and a driving state near each driving unit. Potentiometers are provided as various sensors for detecting (movement amount), and the control unit controls the drive state of each drive unit by feeding back the drive state of each drive unit from each potentiometer.

[0003] As a device equipped with such a motor drive mechanism, there is, for example, a photographing device equipped with a motor driven camera. In this photographing device, the photographing condition is adjusted automatically or automatically. Each drive unit such as a zoom, a focus, and an aperture is driven by a motor, and a potentiometer is provided in the vicinity of each drive unit as various sensors for detecting a drive state (amount of movement). Is fed back from each potentiometer to control the driving state of each driving unit and automatically set the designated photographing condition.

[0004]

However, in the above-mentioned conventional photographing apparatus, when the photographing condition of a three-dimensional object is designated, the photographing plane (front, top, side, overhead view, etc.) of the object is designated. Is performed, the zoom, focus, iris (aperture), etc. of the camera with respect to the designated shooting target surface are automatically adjusted, but the depth of focus is determined according to the aperture value adjusted by the camera. And the depth of field set in the depth direction from the shooting target surface of the subject by this depth of focus, the correspondence between the two was not clearly shown. However, there has been a problem that a photographing result may be different from a predicted photographing result depending on the photographing condition.

An object of the present invention is to obtain a depth of field in the depth direction from an object photographing surface according to designated photographing conditions, and to provide information indicating the obtained depth of field together with the object photographing surface. Display to clearly indicate the depth of field of the subject before photographing.

[0006]

According to the first aspect of the present invention,
In a photographing apparatus for photographing a plurality of surfaces of a photographing target, a depth image photographing means for photographing an image in a depth direction of the photographing target surface in advance, and a focus position calculating means for calculating a focal position at the time of photographing the photographing target surface in a depth direction. Display control means for superimposing, on a display means, a photographed image in the depth direction of a photographing target surface photographed in advance by the depth image photographing means on a display position indicating the focal position calculated by the focal position calculating means. And, it is characterized by having.

According to the first aspect of the present invention, in a photographing apparatus for photographing a plurality of surfaces of a photographing target, a depth image photographing unit previously photographs an image of the photographing target surface in a depth direction, and a focus position calculating unit. However, when the focal position at the time of photographing in the depth direction with respect to the photographing target surface is determined, the display control means is preliminarily photographed by the depth image photographing means at the display position indicating the focal position calculated by the focal position calculating means. The photographed images in the depth direction of the photographing target surface are superimposed and displayed on the display means.

Therefore, the operator confirms the focal position of the subject in the depth direction on the surface to be photographed before photographing,
By adjusting the focus position to the intended position, a front image, a top image, a bird's-eye view image, or the like of the subject can be taken, and the reliability of the photographing device can be improved.

[0009]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 to 11 are diagrams showing an embodiment of a photographing system to which the present invention is applied.

First, the configuration will be described. FIG. 1 is an external perspective view illustrating the overall configuration of a photographing system 1 according to the present embodiment. In FIG. 1, the photographing system 1 includes an image processing device 10 and a photographing device 40.

In FIG. 1, an image processing apparatus 10 includes a main body 11 having functions of a control system relating to image processing described later.
And CR that displays various screens related to the image processing contents
A display 12 constituted by a T (Cathode Ray Tube) or the like, a keyboard 13 for inputting various commands and instruction contents, and a mouse 14 for instructing various instructions on various screens displayed on the display 12 are provided. .

A photographing device 40 includes a case 401 for storing various functions for setting a photographing environment by setting a subject, and a camera tilt table which is rotatably mounted on an opening on the near side of the case 401 in FIG. A hood 402 for setting the photographing direction of the digital camera 20 set in 403 and blocking external light, and a digital camera 20 set rotatably mounted in the opening of the hood 402 on the near side in the drawing. And a camera tilt base 403 for setting a tilt angle.

Further, an emergency stop button 404 for emergency stop attached to a hood drive unit 407, which will be described later, and a subject pedestal 405 housed inside the case 401 are provided on the front side of the case 401 of the photographing device 40 in the figure. A side door 406 that opens and closes when a subject (commodity) is set in the camera, and a hood drive unit 407 that rotationally drives the hood 402 are provided.

On the side of the case 401 of the photographing device 40 on the near side in the figure, each drive unit of the photographing device 40 is driven in accordance with a control signal for controlling each drive unit inputted from the image processing device 10. A photographing control device 30 having a built-in photographing control system for outputting a control signal is attached.

A cable C for transmitting and receiving various control signals and various detection signals related to photographing is connected between the image processing apparatus 10, the digital camera 20, and the photographing control apparatus 30.

Next, the detailed structure of the subject pedestal 405 will be described with reference to the sectional views shown in FIGS. As shown in FIG. 2A, the subject pedestal 405 includes an elevating mechanism 451, a rotating mechanism 452, and the mounting member 4.
53 is provided. The lifting mechanism 451 includes, as shown in FIG. 2A, a tubular mechanism 454 and a drive mechanism 455.

The cylindrical mechanism portion 454 includes a fixed cylindrical body 456 disposed on the bottom surface in the case 401 of the photographing box 40.
A vertical cylinder 457 held vertically movably by the fixed cylinder 456 wrapping the fixed cylinder 456, and a shaft 458 held substantially at the center of the vertical cylinder 457. Have been. in this case,
The upper side of the shaft 458 always projects upward, and the lower side thereof is held in the elevating cylinder 457.

The drive mechanism 455 is provided on a rack 459 provided vertically on the inner surface of the fixed cylindrical body 456, a motor 460 provided at a lower part in the elevating cylindrical body 457, and provided on an output shaft of the motor 460. And a pinion 462 that meshes with the rack 459 of the fixed cylindrical body 456.

In the lifting mechanism 451, when the pinion 462 is rotated by the motor 460, the pinion 462 is moved with the rotation as shown in FIG.
By moving up and down along the pinion 46
The lifting cylindrical body 457 provided with 2 moves up and down.

As shown in FIG. 2A, the rotating mechanism 452 includes a shaft 458 protruding above the elevating cylindrical body 457.
Case 463 rotatably attached to the upper end of the case
It has. The rotating case 463 has a sun gear 46 fixed to the upper end of the shaft 458 inside thereof.
4, and a rotating motor 465 is provided on the upper surface of the rotating case 463. A planetary gear 467 that meshes with and rotates with the sun gear 464 is attached to the output shaft of the rotation motor 465.

The rotating mechanism 452 includes a rotating motor 4
When the planetary gear 467 rotates by 65, the planetary gear 467 rolls along the outer periphery of the sun gear 464 in accordance with the rotation, thereby rotating the rotating case 463 to the shaft 4.
Rotate around 58.

A pedestal 468 that rotates integrally with the rotating case 463 is mounted on the rotating case 463. This pedestal 4
68 is formed in a cylindrical shape larger than the outer shape of the rotating case 463. On the upper surface of the base 468, FIG.
As shown in (a), a rotating plate 469 is provided.
A magnetic plate provided with a magnetic shield plate (not shown) is provided on the lower surface of the rotating plate 469. When a coil wound around a core provided on the upper surface of the magnetic plate is energized, a magnetic field is generated. I do. The coil and the core are covered with a resin member made of a lubricating resin such as silicone which is slippery, and the upper surface of the resin member is formed as a flat surface.

The mounting member 453 is disposed on a rotating plate 469 of the rotating mechanism 452 via a background sheet 413. The mounting member 453 has a magnetic plate (not shown),
A resin member made of a lubricating resin such as silicone is provided on the lower surface, and a subject is placed on the upper surface.
Is attracted to the magnetic plate via the background sheet 413 by the magnetic force generated by the coil provided on the magnetic plate. As shown in FIG. 3, the background sheet 413 is provided on the right side of the subject pedestal 405 in FIG.
11 is fixed to the upper end portion by a clip 412.
The background sheet 413 covers the front surface of the background plate 411 and the pedestal portion of the subject pedestal 405 to unify the background color and the like of the subject placed on the subject pedestal 405, thereby forming a favorable photographing environment. Further, a back door 401a that can be opened and closed is provided on the right side of the background plate 411 in the figure, and the background plate 411 and the background sheet 413 can be exchanged.

In the mounting member 453, the rotating case 46
When the pedestal 468 and the rotating plate 469 rotate together with 3,
With this, the magnetic plate of the mounting member 453, which is attracted by the magnetic force generated on the magnetic plate of the rotating plate 469, rotates, thereby rotating the subject, but the magnetic plate of the rotating plate 469 and the mounting member are rotated. Since the lubricating resin comes into contact with the front and back surfaces of the background sheet 413 interposed between the 453 and the magnetic plate, the background sheet 413 does not rotate with the magnetic plate and is always maintained in a constant state.

A motor 460 provided at the lower portion of the elevating cylinder 457 has a built-in potentiometer 461 for detecting its rotational position, and a rotating motor 465 provided on the rotating mechanism 452 has A potentiometer 466 for detecting the rotational position is built in.

In the photographing device 40 shown in FIG.
A lighting device 408 is attached to the upper left portion in the drawing inside the case 401, and a subject pedestal 405 at a lower right portion thereof.
Irradiates light on the subject placed in This lighting device 408
Of the illumination control unit 307 in the photographing control device 30
Is controlled by A mirror 409 is attached to a door 410 that can be opened and closed in the upper right portion in the drawing inside the case 401.
The upper surface of the subject placed at 05 is projected on the imaging surface of the digital camera 20. The door 410 to which the mirror 409 is attached can be used for maintenance of the mirror 409 in an open state.

Next, the control system 1 inside the image processing apparatus 10
00 will be described with reference to the block diagram shown in FIG. In FIG. 4, the control system 10 of the image processing apparatus 10
0 indicates a CPU 101, an input device 102, a RAM 103,
It comprises an I / F 104, a display device 105, a storage device 106, and a storage medium 107, and the storage medium 107
Are connected to the bus 108.

CPU (Central Processing Unit) 10
1 develops a system program stored in the storage device 106 and an image processing program corresponding to the system in a program storage area (not shown) in the RAM 103 and stores various instructions or data input from the input device 102 in the RAM 103. And temporarily executes various types of image processing on the image data stored in the storage device 106 in accordance with the input instruction and the input data, and stores the processing results in the RAM 103 and the display device 1.
Displayed at 05. Then, the storage device 10 instructed to input the processing result stored in the RAM 103 from the input device 102.
Save to the save destination in 6.

Further, the CPU 101 executes a photographing process (see FIG. 7), which will be described later, when photographing a subject with the photographing device 40, sets a three-dimensional subject on the subject pedestal 405, and performs automatic photographing according to an instruction from the input device 102. When designated, a photographing condition designation screen for designating the photographing conditions is displayed on the display device 105, and the “photographing condition name” is designated, and the photographing surface (front, top, bird's-eye, When the “side view” is specified and “front view” is specified, first, in order to shoot the “top view image” of the subject, the shooting condition table (front, Of the shooting conditions set separately for the top surface, the bird's-eye view, and the side surface, the shooting conditions (zoom, focus, , Iris), the rotation position of the hood 402, the tilt angle of the camera tilt base 403, the height and rotation position of the subject pedestal 405, and various instruction signals via the I / F 104 to move and adjust the illuminance of the illumination device 408. The image data is output to the imaging control device 30, the top surface of the subject is photographed, and the top image data is stored in a photographed image file in the storage device 106.

Then, the CPU 101 extracts lens information (zoom, focus, iris) necessary for “frontal photographing” of the subject from the photographing condition table, and passes the lens information to the photographing control device 30 as an automatic adjustment value. ,
When the front depth, the just focus, and the back depth at the time of the front photographing of the subject are calculated and the calculation result is acquired from the photographing control device 30, the top surface image data of the subject previously stored in the photographed image file includes the depth of field. Are superimposed on each other and displayed on a separate window frame on the display device 105, and lens information for front photographing is adjusted according to photographing conditions arbitrarily specified by the user within the range of the line indicating the depth of field. Then, the adjustment value is passed to the imaging control device 30, and the rotation position of the hood 402, the tilt angle of the camera tilt base 403, the height and rotation position of the subject pedestal 405, and the illuminance of the illumination device 408 are set according to the front imaging. By moving and adjusting to the state, the front photographing of the subject is executed.

Further, when “top photographing” of the subject is designated in the photographing process, the CPU 101 executes a top photographing process (see FIG. 8) described later to photograph a “front image” of the subject. A photographing condition (zoom, focus, iris) of the digital camera 20 in the photographing device 40, a rotation position of the hood 402, a tilt angle of the camera tilt table 403, a subject, based on the front photographing condition parameters set in the photographing condition table. Various instruction signals are output to the imaging control device 30 via the I / F 104 so as to move and adjust the height and rotation position of the pedestal 405 and the illuminance of the illumination device 408, so that the front of the subject is imaged, and the front image is obtained. The data is stored in a captured image file in the storage device 106.

Then, the CPU 101 extracts lens information (zoom, focus, iris) necessary for “top view photographing” of the subject from the photographing condition table, and passes the lens information to the photographing control device 30 as an automatic adjustment value. hand,
When the front depth, the just focus, and the back depth at the time of photographing the subject top surface are calculated, and the calculation result is obtained from the photographing control device 30, the object surface is added to the top surface image data of the subject previously stored in the photographed image file. Each line of the depth is superimposed and displayed on a separate window frame on the display device 105, and lens information for top surface photographing is selected according to a photographing condition arbitrarily designated by a user within the range of the line indicating the depth of field. Is adjusted, and the adjustment value is passed to the photographing control device 30, and the rotation position of the hood 402, the tilt angle of the camera tilt base 403, the height and rotation position of the subject pedestal 405, and the illuminance of the illumination device 408 are photographed on the top surface. Is moved and adjusted to a state corresponding to, and the top surface of the subject is photographed.

Further, when “overhead photographing” of the subject is specified in the photographing process, the CPU 101 photographs the “side image” of the subject based on the side photographing condition parameters set in the photographing condition table. The photographing conditions (zoom, focus, iris) of the digital camera 20 in the photographing device 40, the rotation position of the hood 402, the tilt angle of the camera tilt base 403, the subject pedestal 40
5 is output to the photographing control device 30 via the I / F 104 so as to move and adjust the height and the rotation position of the object 5 and the illuminance of the lighting device 408, to photograph the side surface of the subject, Is stored in the captured image file in the storage device 106.

The CPU 101 extracts lens information (zoom, focus, iris) necessary for “overhead photographing” of the subject from the photographing condition table, and passes this lens information to the photographing control device 30 as an automatic adjustment value. ,
When the front depth, the just focus, and the rear depth at the time of the subject overhead view shooting are calculated and the calculation result is obtained from the shooting control device 30, the side image data of the subject previously stored in the shot image file includes the depth of field. Each line is superimposed and displayed on a separate window frame on the display device 105, and the lens information for overhead view shooting is adjusted according to shooting conditions arbitrarily specified by the user within the range of the line indicating the depth of field. In addition to passing the adjustment values to the imaging control device 30, the rotation position of the hood 402, the tilt angle of the camera tilt base 403, the height and rotation position of the subject pedestal 405, and the illuminance of the illumination device 408 are determined according to the top surface imaging. By moving and adjusting to the state, the bird's-eye photographing of the subject is executed.

The input device 102 includes the keyboard 13 and the mouse 14 shown in FIG.
Output to U101.

RAM (Random Access Memory) 103
Forms a program storage area for expanding various programs when the CPU 101 executes the various application programs, and a memory area for expanding data, image data, and the like processed when the CPU 101 executes the various processing. Form.

The I / F 104 is connected to the photographing control device 30 via the cable C, transmits various instruction signals input from the CPU 101 to the photographing control device 30,
Various detection signals and image signals transmitted from the imaging control device 30 are received and output to the CPU 101.

The display device 105 is the display 12 shown in FIG. 1, and displays various display data (such as a photographing condition designation screen and image data) input from the CPU 101.

The storage device 106 has a storage medium 107 in which programs, data and the like are stored in advance, and this storage medium 107 is formed of a magnetic or optical recording medium or a semiconductor memory. The storage medium 107 is fixedly provided in the storage device 106 or is detachably mounted. The storage medium 107 includes the system program, an image processing program corresponding to the system, an image processing program, The data and the like processed by each processing program are stored.

The program, data, and the like stored in the storage medium 107 may be received and stored from another device connected via a communication line or the like.
Another device connected via a communication line or the like may be provided with a storage device provided with the above-mentioned storage medium, and the program and data stored in the storage medium 107 may be used via the communication line. .

The storage device 106 is provided with the CPU 10
1 stores a photographing condition table and a photographed image file used for the photographing process in FIG. 1, and their configurations are shown in FIG.

FIG. 5A shows the structure of a photographing condition table, in which a digital camera is provided for each of "front, top, overhead, side" indicating the photographing direction of a subject corresponding to "photographing condition name". 20, “camera control value (zoom, focus, iris)”, “camera pedestal angle” at camera tilt base 403, “subject pedestal height” at subject pedestal 405, “hood angle” at hood 402, The “illuminance” of the lighting device 408 is stored in association with the “illuminance”.

FIG. 5B shows the structure of a photographed image file, in which "image data" corresponds to "file name".
And "Shooting condition values (shooting direction, zoom, focus, aperture, camera pedestal angle, subject pedestal height, hood angle)"
, “Subject data (product name, etc.)”, “flag”,
Are stored in association with each other.

Next, the configurations of the control systems 200 and 300 inside the digital camera 20 and the photographing control device 30 will be described with reference to the block diagram shown in FIG. In FIG. 6, a control system 200 of the digital camera 20 includes an I / F 20
1, camera control unit 202, image memory 203, motor 2
04 to 206, a zoom 207, a focus 208, an aperture 209, and potentiometers 210 to 212.

The I / F 201 is an I / F 201 in the photographing control device 30.
/ F301, receives various photographing control signals, and outputs the signals to the camera control unit 202.
Each of the detection signals input from 10 to 212 is output to the camera control unit 202, and the I / O
The data is transmitted to the image processing apparatus 10 via F301.

The camera control unit 202 controls the motors 204 to 2 according to various photographing control signals input from the I / F 201.
06, a drive control signal is output and drive control is performed, the zoom 207, the focus 208, and the aperture 209 are moved to predetermined positions so as to correspond to predetermined shooting conditions, and zoom positions fed back from the potentiometers 210 to 212; Based on the detection signals of the focus position and the iris position, the zoom 207, the focus 208,
Then, after confirming that the aperture 209 has been adjusted to the predetermined position, the photographing operation of the imaging unit (not shown) is controlled, and the photographed image data is stored in the image memory 203.

The image memory 203 is composed of a magnetic or optical recording medium or a semiconductor memory, and stores image data input from the camera control unit 202.

The motors 204 to 206 respectively drive the zoom 207, the focus 208, and the aperture 209 to move to predetermined positions according to drive control signals input from the camera control unit 202.

Each of the potentiometers 210 to 212 is constituted by a variable resistor or the like,
6, a zoom 207, a focus 208,
And each drive position in the diaphragm 209 is detected, and each detection signal is output to the I / F 201.

In FIG. 6, the control system 300 of the photographing control device 30 includes an I / F 301, a stop switch 302, a camera direction detection switch 303, a tilt base drive control unit 304,
Subject pedestal drive control unit 305, hood drive control unit 30
6, illumination control unit 307, RAM 308, storage device 30
9, a storage medium 310, and a CPU 311.

The I / F 301 receives various instruction signals transmitted from the image processing apparatus 10 via the cable C, and
Output to the PU 311 and the I / F 201 in the digital camera 20, and the potentiometers 403b, 405b, 407
b is output to the CPU 311 and transmitted to the image processing apparatus 10 via the cable C, and the potentiometer 21 is input from the I / F 201.
The detection signals 0 to 212 are transmitted to the image processing apparatus 10 via the cable C.

The stop switch 302 is connected to the emergency stop button 404 shown in FIG. 1. When the emergency stop button 404 is operated, a stop signal for stopping the operation of each drive unit is transmitted to the tilt base drive control unit. 304, the pedestal drive control unit 305, the hood drive control unit 306, and the illumination control unit 307 are simultaneously output to immediately stop the operation of each drive unit.

The camera orientation detection switch 303 is a switch for detecting whether or not the digital camera 20 set on the camera tilt base 403 is correctly set at a predetermined fixed position.
, The detection signal is output to the CPU 301.

The tilt table drive control unit 304 is provided with the I / F 30
CPU according to a tilt table drive instruction signal input from
The drive control of the motor 403a is performed by the tilt base drive control signal input from 311 to drive and control the tilt angle of the camera tilt base 403, and the tilt is detected based on the tilt angle detection signal fed back from the potentiometer 403b via the I / F 301. Adjust the corner to the desired value.

The subject pedestal drive control unit 305 includes an I / F 3
01 according to the subject pedestal drive instruction signal input from
The motors 460 and 465 are driven and controlled by the subject pedestal drive control signal input from the PU 311 to control the subject pedestal 40.
5, the height of the lifting / lowering cylinder 457 is controlled to drive up and down, and the position of the rotating case 463 is controlled to drive the I / O.
The elevation position and the rotation position are adjusted to desired positions based on the elevation position detection signal and the rotation position detection signal fed back from the potentiometers 461 and 466 via F301.

The hood drive control unit 306 includes an I / F 301
CPU 31 according to the hood drive instruction signal input from
The motor 40 is controlled by a hood drive control signal
The rotational position of the hood 402 is drive-controlled by controlling the rotational position of the hood 402, and the rotational position is adjusted to a desired position based on the rotational position detection signal fed back from the potentiometer 407b via the I / F 301.

The illumination control unit 307 controls the illuminance of the illumination device 408 according to the illumination drive control signal input from the CPU 311 according to the illumination instruction signal input from the I / F 301.

The RAM 308 forms a program storage area for developing a drive control processing program when the CPU 311 described later executes the drive control processing program,
The PU 311 forms a memory area in which data to be processed when executing the processing is expanded.

The storage device 309 has a storage medium 310 in which programs, data and the like are stored in advance, and this storage medium 310 is constituted by a magnetic or optical recording medium or a semiconductor memory. The storage medium 310 is fixedly provided in the storage device 309 or is detachably mounted. The storage medium 310 stores the drive control processing program, data processed by the processing program, and the like. I do.

The program, data, and the like stored in the storage medium 310 may be received and stored from another device connected via a communication line or the like.
A storage device having the above storage medium may be provided on another device connected via a communication line or the like, and the program and data stored in the storage medium 310 may be used via the communication line. .

The storage device 310 stores a focal length table used when the CPU 311 performs a photographing process, and this configuration is shown in FIG. FIG.
(C) shows the configuration of the focal length table, in which the potentiometer value output from the potentiometer 211 for detecting the focus position of the focus 208 of the digital camera 20, the focus value, and the focal length are stored in association with each other. It is configured to be.

The CPU 311 expands the drive control processing program stored in the storage medium 310 into a program storage area (not shown) in the RAM 308, executes the drive control processing, and executes various drive instructions input from the I / F 301. In accordance with the signals, drive control signals are output to the tilt base drive control unit 304, the subject base drive control unit 305, the hood drive control unit 306, and the illumination control unit 307, respectively, and the hood 402, the camera tilt base 403, and the subject base are output. 405 and the respective driving states of the lighting device 408 are controlled.

Further, the CPU 311 controls the operation of the image processing apparatus 10.
In the photographing process executed by the CPU 101 in the
Upon receiving shooting conditions (zoom, focus, iris) for top view shooting from the CPU 101, an auxiliary shooting process (see FIG. 7) described later is started, and mounted on the subject base 405 based on the shooting conditions for top view shooting. The top surface of the placed subject is photographed, and the top surface image data is transmitted to the CPU 101, and stored in the photographed image file in the image processing apparatus 10. Subsequently, when lens information for front photographing (zoom, focus, iris) is received from the CPU 101 as an automatic adjustment value, the focal length corresponding to the focus value is obtained from the focal length table stored in the storage device 310, and Based on the focal length and the received lens information, the depth of field at the time of the front photographing is calculated, and the calculation result is stored in the CPU 10.
Pass to 1.

The CPU 311 controls the image processing device 10
In the top surface photographing process executed by the CPU 101 in the inside, the photographing conditions (zoom,
(Focus, iris), an auxiliary photographing process (see FIG. 8) described later is started, and the front of the subject placed on the subject pedestal 405 is photographed based on the photographing conditions for the front photographing, and front image data is acquired. To the CPU 101,
The captured image file in the image processing apparatus 10 is stored.
Subsequently, when lens information (zoom, focus, iris) for top surface photographing is received from the CPU 101 as an automatic adjustment value, the depth of field at the time of top surface photographing is calculated based on the received lens information. The result is passed to the CPU 101.

Further, the CPU 311 controls the image processing apparatus 1
In the overhead view photographing process executed by the CPU 101 within 0, upon receiving photographing conditions (zoom, focus, iris) for the side photographing from the CPU 101, the same auxiliary photographing process is started, and based on the photographing conditions for the side photographing. Then, the image of the side of the subject placed on the subject pedestal 405 is photographed, the side image data is transmitted to the CPU 101, and the photographed image file in the image processing apparatus 10 is stored. Then, C
When the lens information (zoom, focus, iris) for bird's eye view is received as an automatically adjusted value from the PU 101, the depth of field at the time of the side view is calculated based on the received lens information, and the calculation result is passed to the CPU 101. .

Next, the operation of this embodiment will be described. First, a photographing process executed by the CPU 101 in the image processing device 10 and a photographing control device 30
The auxiliary shooting process executed by the CPU 301 will be described with reference to the flowchart shown in FIG.

In FIG. 7, first, the CPU 101 operates the subject pedestal 4 installed in the case 401 of the photographing device 40.
05, a product to be a subject is set (step S
1) When automatic photographing is designated by an instruction from the input device 102, a photographing condition designation screen for designating photographing conditions is displayed on the display device 105, and a "photographing condition name" is designated, and a three-dimensional object ( Specify the shooting surface (front, top, overhead, side) of the product).

When "frontal photographing" is designated (step S2), first, a photographing condition table (FIG. 5A) stored in advance in the storage device 106 to photograph a "top image" of the subject. )), The shooting conditions (zoom, focus) of the digital camera 20 in the shooting device 40 based on the top surface shooting condition parameters among the shooting conditions set for each shooting surface (front, top, overhead, side) of the subject. ,
Iris), the rotational position of the hood 402, the tilt angle of the camera tilt base 403, the height and rotational position of the subject pedestal 405, and various instruction signals for moving and adjusting the illuminance of the illumination device 408 via the I / F 104. Control device 30
To move the respective driving positions of the photographing device 40 to the top photographing position (step S3), and start photographing the top of the subject (step S4).

At this time, the CPU 31 in the photographing control device 30
Upon receiving each adjustment value (zoom, focus, iris) for top-surface imaging via the I / F 301, the auxiliary camera 1 starts an auxiliary imaging process, and the digital camera 2 via the I / F 301.
The respective adjustment values are sent to 0, and the top image of the subject is photographed. When the top image data is received from the digital camera 20, it is sent to the image processing apparatus 10 via the I / F 301 and stored. The captured image file in the device 106 (FIG. 5)
(See (b)) (step S21).

FIG. 9 shows the positional relationship between the subject and the digital camera 20 in this top surface photographing.

The CPU 101 in the image processing apparatus 10
When the top surface image data is received from the PU 311, the top surface image data is stored in a captured image file in the storage device 106. Then, the CPU 101 obtains the lens information (zoom,
Focus and iris) are extracted (step S5), and the lens information is sent to the photographing control device 30 via the I / F 104 as an automatic adjustment value (step S6).

The CPU 31 in the photographing control device 30
When receiving an automatic adjustment value (zoom, focus, iris) for frontal photographing from the CPU 101, the storage device 3
The focal length at the time of the front photographing is obtained from the focal length table (see FIG. 5C) stored in the camera 09 (Step S).
22) Based on the focal length and each of the other adjustment values, the front depth, the just focus, and the rear depth at the time of the front photographing of the subject are calculated in accordance with the following formulas (1) to (6) (step S23). .

Object distance = (focal length / magnification) × subject height / CCD height (1) hyperfocal distance = (object distance × object distance) / (minimum circle of confusion × aperture value) 2) Near point = ((object distance) × (hyperfocal distance + focal distance)) / (hyperfocal distance + object distance) (3) Far point = ((object distance) × (hyperfocal distance−focus) Distance)) / (hyperfocus distance−object distance) (4) front depth = object distance−near point (5) rear depth = object distance + far point (6) Next, the CPU 311 The calculated front depth, just focus, and rear depth are transmitted to the image processing apparatus 10 via the I / F 301 (step S24), and the auxiliary photographing process ends.

When the CPU 101 in the image processing apparatus 10 obtains the calculation results of the front depth, the just focus, and the rear depth from the shooting control apparatus 30, the CPU 101 applies the top surface image data of the subject previously stored in the shot image file. Each line of the depth of field is superimposed and displayed on the monitor screen of another window frame as shown in FIG. 10 on the display screen of the display device 105 (step S7).

Then, when the user specifies the photographing condition arbitrarily within the range of the line indicating the depth of field displayed on the monitor screen, the CPU 101 sets the designated photographing condition to the front photographing intended by the operator. (Step S8). If it is not within the range of the frontal photographing intended by the operator, the processing shifts to step S14 to adjust the lens information (zoom, focus, iris) according to the designated photographing conditions, and to adjust the adjustment value to I / Photographing control device 3 via F104
0 (step S15), and the CPU 311 again calculates the front depth, just focus, and rear depth, and returns to the process of step S7 to acquire the calculation result.

If the designated photographing condition is within the range of the front photographing intended by the operator, the lens information for the front photographing is adjusted, and the adjustment value is set to the photographing control device 3.
0, and the rotational position of the hood 402, the tilt angle of the camera tilt base 403, the height and rotational position of the subject pedestal 405, and the illuminance of the illumination device 408 are moved and adjusted to a state corresponding to frontal photographing. When the front image data is received from the imaging control device 30 (step S9), the captured front image is displayed on the monitor screen of the display device 105 as shown in FIG.

Subsequently, the CPU 101 designates “top view photographing” of the subject in the photographing process (step S 1).
0), a top surface photographing process is executed (step S11). This top surface photographing process will be described with reference to the flowchart shown in FIG.

In FIG. 8, first, the CPU 101 captures a “front image” of a subject based on the front capturing condition parameters set in the above-described capturing condition table.
The photographing conditions (zoom, focus, iris) of the digital camera 20 in the photographing device 40, the rotation position of the hood 402, the tilt angle of the camera tilt base 403, the height and rotation position of the subject pedestal 405, and the illuminance of the illumination device 408 are moved. Various instruction signals are output to the photographing control device 30 via the I / F 104 to perform adjustment, and each driving position of the photographing device 40 is moved to the front photographing position (step S3).
1), start the front photographing of the subject (step S)
32).

At this time, the CPU 31 in the photographing control device 30
When receiving adjustment values (zoom, focus, iris) for front photographing via the I / F 301, the auxiliary camera 1 starts auxiliary photographing processing and the digital camera 2 via the I / F 301.
When each of the adjustment values is transmitted to the digital camera 20 and the front image data is received from the digital camera 20, the adjustment value is transmitted to the image processing apparatus 10 via the I / F 301, and the storage device 106 Image file (Fig. 5
(See (b)) (step S51).

The CPU 101 in the image processing apparatus 10
When the front image data is received from the PU 311, the front image data is stored in a captured image file in the storage device 106. Then, the CPU 101 obtains the lens information (zoom,
Focus, iris) (step S33),
The lens information is sent to the photographing control device 30 via the I / F 104 as an automatic adjustment value (step S34).

Then, the CPU 31 in the photographing control device 30
1 receives the automatic adjustment values (zoom, focus, and iris) for top surface photography from the CPU 101, and calculates the front depth, just focus, and rear depth at the time of front photographing of the subject based on the respective adjustment values according to the above-described calculation formula ( The calculation is performed according to 1) to (6) (step S52), and this calculation result is used as the I / F 301.
(Step S5).
3), the present auxiliary photographing process ends.

When the CPU 101 in the image processing apparatus 10 obtains the calculation results of the front depth, the just focus, and the rear depth from the shooting control apparatus 30, the CPU 101 sets the subject image in the front image data of the subject previously stored in the shot image file. Each line of the depth of field is superimposed and displayed on the monitor screen of another window frame on the display screen of the display device 105 (step S35).

Then, when the user specifies the photographing condition arbitrarily within the range of the line indicating the depth of field displayed on the monitor screen, the CPU 101 sets the designated photographing condition to the top surface intended by the operator. It is determined whether it is within the range of the photographing (step S36). If it is not within the range of the frontal photographing intended by the operator, the process shifts to step S38 to adjust the lens information (zoom, focus, iris) according to the designated photographing condition, and to adjust the adjustment value to I / Photographing control device 3 via F104
0 (step S39), the CPU 311 again calculates the front depth, just focus, and rear depth, and returns to the process of step S35 to obtain the calculation result.

If the designated photographing condition is within the range of the front photographing intended by the operator, the lens information for the front photographing is adjusted, and the adjustment value is set to the photographing control device 3.
0, and the rotational position of the hood 402, the tilt angle of the camera tilt base 403, the height and rotational position of the subject pedestal 405, and the illuminance of the illumination device 408 are moved and adjusted to a state corresponding to frontal photographing. Is executed (step S37), and when the top image data is received from the imaging control device 30, the top image is displayed on the display device 105.
And returns to the photographing process of FIG.

Subsequently, the CPU 101 designates “overhead photographing” of the subject in the photographing process (step S 1).
2), an overhead view photographing process is executed (step S13). Since this overhead view photographing process is executed in the same procedure as the top surface photographing process shown in FIG. 8, description will be made below according to this procedure. Illustration of a flowchart corresponding to the overhead view photographing process is omitted.

First, the CPU 101 captures the shooting conditions (zoom, focus, zoom, focus, etc.) of the digital camera 20 in the shooting device 40 based on the side shooting condition parameters set in the shooting condition table in order to shoot a “side image” of the subject. Iris), the rotational position of the hood 402, the tilt angle of the camera tilt base 403, the height and rotational position of the subject pedestal 405, and various instruction signals for moving and adjusting the illuminance of the illumination device 408 via the I / F 104. It outputs to the control device 30, moves each drive position in the photographing device 40 to the side surface photographing position, and starts the side photographing of the subject.

At this time, the CPU 31 in the photographing control device 30
Upon receiving the adjustment values (zoom, focus, iris) for the side photographing via the I / F 301, the auxiliary camera 1 starts the auxiliary photographing process, and the digital camera 2 via the I / F 301.
0, each adjustment value is sent to cause the camera to take a side image of the subject. When the side image data is received from the digital camera 20, the adjustment value is sent to the image processing apparatus 10 via the I / F 301 and stored in the storage device 106. Image file (Fig. 5
(See (b)).

The CPU 101 in the image processing apparatus 10
When the side image data is received from the PU 311, the side image data is stored in a captured image file in the storage device 106. Then, the CPU 101 obtains the lens information (zoom,
Focus, iris), and using the lens information as an automatic adjustment value via the I / F 104
To send to.

Then, the CPU 31 in the photographing control device 30
1 receives the automatic adjustment values (zoom, focus, iris) for overhead view from the CPU 101, and calculates the front depth, the just focus, and the rear depth at the time of front photographing of the subject based on the respective adjustment values according to the above formula (1). ) To (6), and sends the result of this calculation to the image processing apparatus 10 via the I / F 301, thus ending this auxiliary photographing process.

When the CPU 101 in the image processing apparatus 10 obtains the calculation results of the front depth, the just focus, and the rear depth from the shooting control apparatus 30, the CPU 101 sets the subject image in the side image data of the subject previously stored in the shot image file. Each line of the depth of field is superimposed and displayed on the monitor screen of another window frame on the display screen of the display device 105.

Then, when the user specifies the photographing condition arbitrarily within the range of the line indicating the depth of field displayed on the monitor screen, the CPU 101 sets the designated photographing condition to the overhead photographing intended by the operator. Is determined to be within the range. If it is not within the range of the overhead view photographing intended by the operator, the lens information (zoom, focus, iris) is adjusted in accordance with the designated photographing condition, and the adjustment value is set to the photographing control device 3 via the I / F 104.
0, causing the CPU 311 to calculate the front depth, the just focus, and the rear depth again, and acquire the calculation result.

If the designated photographing condition is within the range of the bird's-eye view photographing intended by the operator, the lens information for bird's-eye view photographing is adjusted, and the adjustment value is set to the photographing control device 3.
0, and the rotational position of the hood 402, the tilt angle of the camera tilt base 403, the height and rotational position of the subject pedestal 405, and the illuminance of the illumination device 408 are moved / adjusted to a state corresponding to bird's-eye view photographing. When the bird's-eye view image data is received from the photographing control device 30 by executing the bird's-eye view photographing, the bird's-eye view image is displayed on the monitor screen of the display device 105, and the photographing process in FIG. 7 ends.

According to the above-described photographing processing, in the photographing system 1 of the present embodiment, the depth of field in the depth direction with respect to the photographing target surface is displayed on the display device 105 when photographing the product as the subject from the front, top, or overhead. , The operator can check the depth of field of the subject before shooting, adjust the focus position to the intended position, and then shoot the front image, the top image, or the overhead image.

Therefore, the photographing conditions of the digital camera 20 can be adjusted so that the photographing result specified in advance by the photographing conditions specified by the operator, and the reliability of the photographing system 1 can be improved.

Further, in the photographing system 1 of the above embodiment, the display position indicating the depth of field in the depth direction of the photographing target surface obtained by the auxiliary photographing process and the depth direction image displayed in a superimposed manner. Since the correspondence is changed in accordance with the adjustment operation of the lens information by the operator, it is possible to reliably perform the imaging of the imaging target surface under the imaging conditions intended by the operator.

In the above embodiment, the focus value may be changed by moving a line indicating the depth of field displayed on the monitor screen with a cursor or the like.

[0097]

According to the photographing apparatus according to the first aspect of the present invention and the storage medium according to the fourth aspect, the operator intends while confirming the focal position of the subject in the depth direction of the photographing target surface before photographing. By adjusting the focal position, a front image, a top image, a bird's-eye image, or the like of the subject can be photographed, and the reliability of the photographing device can be improved.

According to the photographing apparatus of the second aspect,
The operator can adjust the focus position as intended while confirming the depth of field of the subject in the depth direction of the subject before shooting, and take a front image, a top image, or an overhead image of the subject. it can.

According to the photographing apparatus of the third aspect,
The imaging of the imaging target surface can be reliably performed under the imaging conditions intended by the operator.

[Brief description of the drawings]

FIG. 1 is an external perspective view showing an overall configuration of a photographing system 1 according to an embodiment to which the present invention is applied.

2A and 2B are cross-sectional views illustrating a configuration of a subject pedestal 405 in FIG. 1; FIG. 2A is a diagram illustrating a case where a height of a lifting cylinder 457 is at a low position; FIG. 7 is a diagram showing a case where the camera is at a high position.

FIG. 3 is a cross-sectional view showing an internal configuration of the photographing device 40 of FIG.

FIG. 4 is a block diagram showing a configuration of a control system 100 inside the image processing apparatus 10 of FIG.

5 is a photographing condition table (FIG. 4A) stored in a storage device 106 of FIG. 4, a photographed image file (FIG. 4B), and stored in a storage device 309 of FIG. It is a figure showing each composition of a focal length table (the figure (c)).

FIG. 6 shows the digital camera 20 and the photographing control device 30 shown in FIG.
FIG. 2 is a block diagram showing the configuration of each internal control system 200, 300 in FIG.

FIG. 7 is a flowchart showing a photographing process executed by a CPU 101 of FIG. 4 and an auxiliary photographing process executed by a CPU 311 of FIG. 6;

8 is a flowchart showing a top surface photographing process executed by the CPU 101 of FIG. 4 and an auxiliary top surface photographing process executed by the CPU 311 of FIG.

FIG. 9 shows a subject and a digital camera 20 in top-view photography.
FIG. 3 is a diagram showing a positional relationship with the data.

10 is a diagram showing a state in which each line of the depth of field is superimposed on the top surface image data and displayed on the display screen of the display device 105 in the photographing process of FIG. 7;

11 is a diagram illustrating an example of a front image of a subject displayed on the display screen of the display device 105 when front imaging is performed in the imaging processing of FIG. 7;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Imaging system 10 Image processing apparatus 11 Main body 12 Display 13 Keyboard 14 Mouse 100 Control system 101 CPU 102 Input device 103 RAM 104 I / F 105 Display device 106 Storage device 107 Storage medium 108 Bus 20 Digital camera 201 I / F 202 Camera control Unit 203 Image memory 204 to 206 Motor 207 Zoom 208 Focus 209 Aperture 210 to 212 Potentiometer 30 Imaging control device 301 I / F 302 Stop switch 303 Camera orientation detection switch 304 Tilt table drive control unit 305 Subject pedestal drive control unit 306 Hood drive control Unit 307 Lighting control unit 308 RAM 309 Storage device 310 Storage medium 311 CPU 40 Photographing device 401 Case 402 Hood 403 Camera tilt table 403a Motor 403b Potentiometer 404 Emergency stop button 405 Subject pedestal 407 Hood drive unit 407a Motor 407b Potentiometer 408 Illumination device 460, 465 Motor 461, 466 Potentiometer

Claims (4)

[Claims] 1. A photographing apparatus for photographing a plurality of planes of a photographing target, comprising: a depth image photographing means for photographing an image in a depth direction of the photographing target plane in advance; A focus position calculating means to be obtained; and a display position indicating the focus position obtained by the focus position calculating means, a display image obtained by superimposing a photographed image in the depth direction of the photographing target surface previously photographed by the depth image photographing means on the display means. A photographing device, comprising: display control means for displaying. 2. The apparatus according to claim 1, wherein said focus position calculating means obtains a depth-of-field position at the time of shooting in the depth direction with respect to said shooting target surface; 2. The photographing apparatus according to claim 1, wherein a photographed image in a depth direction of the photographing target surface photographed in advance by said depth image photographing means is superimposed on a display position indicating the position, and is displayed on the display means. 3. The apparatus according to claim 2, further comprising an adjusting unit for adjusting the focal position, wherein the focal position calculating unit adjusts the focal position in the depth direction with respect to the imaging target surface every time the focal position is adjusted by the adjusting unit. Each time the focal position is calculated by the focal position calculating means, the display control means changes the display position indicating the focal position, and the depth direction of the photographing target plane previously photographed by the depth image photographing means. 2. The photographing apparatus according to claim 1, wherein the photographed images are superimposed and displayed on a display unit. 4. A storage medium storing a computer-executable program for controlling a photographing apparatus for photographing a plurality of surfaces of a photographing target, wherein the computer-readable recording medium stores a program in a depth direction of the photographing target surface. A computer code that can be executed by a computer; a program code that can be executed by a computer to determine a focal position in the depth direction with respect to the imaging target surface; and a display position that indicates the determined focal position. And a computer-executable program code for superimposing and displaying on the display means the superimposed captured images in the depth direction of the imaging target surface.