JP2000224459A - Full-size image input / output device, image recording method and recording medium of the method - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To display in full size on a display screen in an image input / output device. In addition, the user feels that the size is almost the same as when he or she sees the real thing, and is shared between the user who has captured the image and the user who observes the image. SOLUTION: A photographing means, a distance measuring means for measuring a distance from the photographing means to a subject, and an image for displaying a subject in full size based on a photographing lens angle of view of the photographing means and a distance to the subject. A full-size image input / output device comprising: a display size calculation unit that calculates a display size; and an image display unit that displays an image captured by the imaging unit at the calculated full-size display size.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image display device for photographing and displaying an image, for example, an image display device for photographing and storing the image in a recording medium, such as a photograph or a video, and reproducing and displaying the image. The present invention relates to a technique which is effective when applied to an image display device which transmits a captured image to a receiver via a communication line and displays the image in real time as in a communication conference. In particular, the present invention relates to a full-size image input / output device, a method of recording an image in the full-size image input / output device, and a recording medium storing a program for causing a computer to execute each procedure of the method.

[0002]

2. Description of the Related Art As a means for taking an image, a camera,
Devices such as movie shooting machines and video cameras are generally widely used. By using a lens, these apparatuses can project and record a huge object or a minute object onto a limited area on a photographic film or a photographic element. In addition, the recorded image is enlarged according to the size of the display surface of the display device used when displaying,
Alternatively, since the image is displayed in a reduced size, a huge object or a minute object can be displayed on a limited display surface. In addition, by using digital image processing, it is possible to change the size of an image in various ways and display the image.

There is also a technique for producing a full-size photograph used for indicating the size of a product in an advertisement of the product or the like. In general, since the size of a product or the like is known, a full-size photograph is produced by enlarging or reducing a photograph so as to have the size.

There is also a technique for recording a subject as an image and displaying the subject in full size. For example, in a full-size photo,
A method has been used in which the size of a subject is measured, the size is adjusted so that the size of the subject becomes the actual size on the surface of the printing paper, and printing is performed. By using such a technique, for example, the size of a subject can be read from an image.

[0005]

However, conventional apparatuses for photographing images, such as a camera, a movie camera, and a video camera, aim at recording a subject as an image, so that the size of the subject is recorded. And could not be displayed in full size. Also, in the conventional technology for producing full-size photographs, it was not possible to automatically measure the size of the subject, so it was necessary to measure the size of the subject separately from shooting, and to shoot and display a moving image I couldn't do that.

[0006] Further, since the objective is to make the display screen exactly the actual size, there is a case where the impression is slightly different from the size that a human perceives when seeing the real object. Factors of the difference include, for example, the relationship between the background color and the color of the subject, the size of the display surface, the orientation of the subject, and the positional relationship between the observer and the screen. Is a major factor. Due to such a difference in how to feel the size, there is a problem that an image displayed accurately at full size may not always be felt at full size.

An object of the present invention is to provide a technique capable of displaying an image input / output device on a display screen in full size. Another object of the present invention is to provide a technique capable of sharing a feeling of a size close to that of a real object between a user who has taken an image and a user who has observed the image. . The above and other objects and novel features of the present invention will become apparent from the description of the present specification and the accompanying drawings.

[0008]

SUMMARY OF THE INVENTION Among the inventions disclosed in the present application, the outline of a representative one will be briefly described.
It is as follows. (1) Photographing means for photographing a subject, distance measuring means for measuring the distance from the photographing means to the subject, and calculating the display size of the image based on the angle of view of the photographing lens of the photographing means and the distance to the subject. A full-size image input / output device, comprising: a display size calculation unit; and an image display unit that displays an image captured by the imaging unit at the calculated full-size display size.

(2) photographing means for photographing a subject; distance measuring means for measuring a distance from the photographing means to the subject; and a display size of an image based on the angle of view of the photographing lens of the photographing means and the distance to the subject. Display size calculating means for calculating the image information, the image recording means for recording together the output image information of the photographing means, the distance information to the subject, and the angle of view information of the photographing lens, and the image photographed by the photographing means A full-size image input / output device comprising: an image display means for displaying the calculated full-size display size.

(3) photographing means for photographing the subject, distance measuring means for measuring the distance from the photographing means to the subject, and display size of the image based on the angle of view of the photographing lens of the photographing means and the distance to the subject. Display size calculating means for calculating the image display size for real size display calculated based on the distance information to the subject and the angle of view information of the photographing lens together with the image information, the image recording means, An image display means for displaying an image photographed by the photographing means at the calculated full-size display size.

(4) An image input / output device according to any one of (1) to (3), wherein the display size adjustment device finely adjusts the size of a display image by a user operation; A user-specific parameter recording unit that records a user-specific parameter obtained from the adjustment device; and a corrected display size calculation unit that determines a display size based on the full-size display size and the user-specific parameter calculated by the display size calculation unit. It is a full-size image input / output device equipped with:

(5) An image display size correcting method in the full-size image input / output device according to (4), wherein an image of a standard object having a known size is displayed, and a user is provided with the image so that it looks like a full-size image. A user-specific parameter calculated as a ratio between the display size when the image display size is adjusted and the image display size that is displayed at the true size is obtained for each user, and the image is captured by the display size adjustment device. The display size of the image is corrected by dividing the adjusted image size by the user-specific parameter of the user who captures the image and multiplying by the user-specific parameter of the user who observes the image. Image display size correction method.

(6) In the image display size correcting method of (5), a user-specific parameter is measured using a plurality of standard objects having different sizes, recorded together with the sizes of the standard objects, and This is an image display size correction method in which correction is performed using a user-specific parameter measured using a closest standard object.

(7) A recording medium storing a program for causing a computer to execute the processing procedure of the image display size correcting method in the full-size image input / output device of (4), wherein the standard object has a known size. And the user-specific calculation calculated as the ratio of the display size when the user adjusts the image display size so that it looks like a real size, and the image display size that is displayed at the true size. A procedure for obtaining parameters for each user, a procedure for dividing the image size after adjustment by the user who takes the image in the display size adjusting device by a user-specific parameter of the user who takes the image, Each step of the image display size correction method for correcting the display size of the image by multiplying the user-specific parameters of the user who observes the image A recording medium storing a program to be executed by the over data.

(8) In the image display size correcting method of (7), a procedure of measuring a user-specific parameter using a plurality of standard objects having different sizes, and recording the size of the standard object together with the size of the standard object. A recording medium that records a program for causing a computer to execute each procedure of an image display size correction method having a procedure of performing correction using a user-specific parameter measured using a standard object having a size closest to the above. is there.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments (examples) of the present invention will be described in detail with reference to the drawings. (Embodiment 1) FIG. 1 is a schematic configuration diagram showing the overall schematic configuration of a full-size image input / output device according to Embodiment 1 of the present invention. 1
Reference numeral 01 denotes an image photographing unit including a photographing unit 101A and a distance measuring unit 101B, 102 denotes a subject, and 103 denotes a photographing unit 1.
Reference numeral 104 denotes an image signal output from the image capturing unit 101A.
, Distance information to the subject and angle-of-view information of the photographing means 101A output by the distance measuring means 101B, 105 is a display size calculating means (CPU), 106 is an image information storage device (memory device), and 107 is a display size calculating means ( CPU) 1
Reference numeral 105 denotes a display image signal output, 108 denotes display size information output by the display size calculation means (CPU) 105, 10
9 is a display means.

In the first embodiment, for example, a video camera is used as the photographing means 101A, and the distance measuring means 1A is used.
As 01B, for example, using an ultrasonic distance measuring device,
As the image display means 109, for example, a video projector 109 having a zoom lens capable of changing the projection magnification
A and the projection screen 109B are used.

An image signal 103 and distance / view angle information 104 output from the image photographing unit 101 are input to a display size calculation means (CPU) 105. The display size calculation means (CPU) 105 Calculate the image display size to be displayed on the. The display image signal 107 and the display image size information 108 output from the display size calculation means (CPU) 105 are input to the image display means 109 and are projected and displayed (input to the projector 109A of the video image display means 109 and the projection screen 109B
Projected on the display). The image display means 109 (video projector 109A) has a projection surface (projection screen 109A).
The angle of view of the projection lens is adjusted based on the distance information to B) so that the display image signal 107 has the size of the display size information on the projection plane.

The display size calculation means (CPU) 105
Based on the distance to the subject 102 and the angle of view of the photographing lens, the width W of the photographing range of the image photographing unit 101 on a plane perpendicular to the optical axis of the image photographing unit and including the subject is obtained. By projecting the image so that the width of the image becomes W by the image display means 109 (video projector 109A), the subject 102 included in the image is displayed on a projection plane in full size.

FIG. 2 shows the image photographing unit 10 of the first embodiment.
1 is a schematic configuration diagram illustrating a schematic configuration of FIG. Image shooting unit 10
The first ultrasonic distance measuring apparatus 101B emits an ultrasonic pulse, measures a reciprocating time until the ultrasonic pulse is reflected back to the subject 102, and based on the reciprocating time of the ultrasonic pulse, a distance to the subject 102 is measured. Is calculated. In the image photographing unit 101 of the first embodiment, the measuring axis of the ultrasonic distance measuring device 101B and the measuring axis of the video camera 101 are set in parallel, and the video camera 101 is set as close as possible to each other. The subject 102 near the center of the shooting area
Measure the distance to

FIG. 3 is a schematic diagram showing the distance between the image photographing unit 101 and the subject 102 according to the first embodiment. In FIG. 3, the distance to the subject 102 measured by the ultrasonic distance measuring device 101B is denoted by a symbol d.

FIG. 4 is a schematic diagram for explaining a method of obtaining the display size W by the full-size image input / output device of the first embodiment. Reference numeral 110 denotes a range where the image capturing unit 101 captures an image. The display size W is obtained as the width of the photographing range 110 of the image photographing unit 101 on a plane perpendicular to the optical axis of the image photographing unit 101 and including the subject 102. Assuming that the shooting angle of view is θ as shown in FIG. 4, W is the distance d to the subject 102.
And W = 2 · d · tan (θ / 2) based on the shooting angle of view θ.

The image signal 103 and the distance / angle information 104 are combined to form an image information storage device (memory device) 1.
06 and display size calculation means (CP
U) 105 to calculate and display the display size information 108 for real size display. Further, the image signal 103
The display size calculation unit (CPU) 105 calculates display size information 108 based on the distance and angle of view information 104 and records it in the image information storage device (memory device) 106 together with the image. It is displayed based on the displayed display size information 108.

As described above, according to the first embodiment, the distance to the subject 102 is measured at the same time when the image is taken, and the image is recorded or transmitted together with the angle-of-view information of the lens. Is displayed, the subject 102 included in the image can be displayed in full size on the display screen based on the recorded or transmitted distance information and lens angle-of-view information.

(Embodiment 2) FIG. 5 is a schematic diagram showing the overall schematic configuration of a correction device in a full-size image input / output device according to Embodiment 2 of the present invention. 201 is a subject, 202 is a full-size image capturing device, 203 is a full-size image capturing device 202
, An image signal with size information output by the controller 204, a control device for controlling the overall operation, 205 an image signal with size information output by the control device 204, 206 a size of the image signal 205 with size information A variable-magnification video projector for displaying an image in accordance with information; 207, a projection image projected and displayed by the variable-magnification video projector 206; 208, a user; 209, a control panel operated by the user 208 to adjust the display size of the projection image;
Reference numeral 10 denotes a user-specific parameter recording device.

In the full-size image input / output device according to the second embodiment,
A full-size image input / output device is configured by the full-size image capturing device 202, the control device 204, and the variable magnification video projector 206, and the subject 201 is displayed on the display surface so as to be full-size.

FIG. 6 is a diagram showing a flow of the operation of the correction device in the full-size image input / output device of the second embodiment. The operation proceeds in order from top to bottom.

First, as a preparation stage, a user (photographer)
The user-specific parameters of the users 208 and 208 are measured and recorded in the user-specific parameter recording device 210. In the preparation stage, in the configuration of FIG.
A standard object having a known size is used as 1 and an image is displayed on the display surface by the variable magnification video projector 206 so as to be displayed in full size. When the user 208 compares the subject 201 and the projection image 207 and feels that the size of the appearance is different, the user 208 controls the control panel 209.
To adjust the size of the projected image. The control signal output from the control panel 209 controls the projection magnification of the variable magnification video projector 206 via the control device 204, and changes the size of the projection image 207. User 2
08, when the adjustment is completed, operates the control panel 209 to instruct the control device 204 that the adjustment is completed. In response to the user 208's instruction to end the adjustment, the control device 204 determines the ratio (Ws / Wt) between the image display size Ws at that time and the image display size Wt for displaying a standard object whose size is known in advance in full size on the display surface. ) Is recorded in the user-specific parameter recording device 210 as the user-specific parameter P (user) of the user 208. For the sake of explanation, it is assumed that the user (photographer) A of the sender is described as sender and the user B of the receiver is described as receiver, and in FIG. 6, the user (photographer) A and the user (observer) B On the other hand, P (sender) and P (receiver) are recorded.
When actually using the apparatus of the present invention, user-specific parameters are obtained and recorded for all the users 208 who use the apparatus.

Next, a subject is photographed as a photographing stage.
In the photographing stage, the object to be photographed is
Used as 1. A subject 201 is output by a full-scale image human output device including a full-size image capturing device 202, a control device 204, and a variable magnification video projector 206.
Is displayed in full size on the display surface. The image display size at this time is Ws (pict). The displayed image is
Due to factors such as (1) the measurement error of the full-size image capturing device, (2) the influence of the direction and color of the subject, and (3) the influence of the tendency of how the user feels the size, the user 208
May not feel life-size. Therefore, the sender user 208 compares the subject 201 and the projection image 207, and operates the control panel 209 to adjust the image display size of the projection image 207 so that the size of the projection image 207 becomes equal. When the adjustment is completed, the user 208 operates the control panel 209 to instruct the control device 204 that the adjustment is completed. The control device 204 responds to the user's instruction to end the adjustment by displaying the image display size Ws at that time.
(Pict, sender) is recorded together with the captured image.
Finally, the image display size is calculated and the image is displayed as a display stage. The image display size is obtained by adding the adjusted image display size Ws (pict, sender) recorded in the shooting stage to the ratio P (receiver) of the user-specific parameters of the sender and the receiver.
/ P (sender). The following describes that such a calculation can calculate the image display size at which the recipient user B feels as if it is the actual size.

The adjusted image display size Ws (pict, sender) recorded in the photographing stage is different from Ws (pict) in terms of (1) the measurement error of the full-size image photographing apparatus and (2) the subject The image display size is such that the effect of the orientation, the color, and the like, and (3) the effect of the tendency of how the user feels the size unique to the user, etc. are corrected and the sender user A looks at the actual size. Among these factors, two factors, (1) a measurement error of the full-size image capturing device and (2) an influence due to the direction and color of the subject, are common to the user A of the sender and the user B of the recipient. Since it is a factor that exists and needs to be corrected, the correction by the adjustment performed by the user A of the sender is used as it is, and (3) the influence of the sender and the receiver on the influence of the tendency of feeling of the size unique to the user. The difference in personal feeling between the two is corrected by calculation.

In the user-specific parameters obtained in the preparation stage, a standard image obtained by photographing a standard object having a known size is used. Therefore, (1) there is no influence of the measurement error of the full-size image photographing apparatus, but (2) the subject It is thought that there is an influence by the direction, color, etc. However, since the unique parameters of each user are obtained for the same standard image, the ratio P (userB) / P (userA) between the user-specific parameters cancels out the components unique to the standard image, and the size between the users The value indicates only the difference in the tendency of feeling.

The tendency of Ws (pict, sender) specific to the sender user is divided by P (sender) to remove the influence, and P (receiver) to add the tendency specific to the receiver user.
By multiplying by, it is possible for the recipient user to obtain an image display size that gives the appearance a real size. In other words, the image display size Ws (pict, receiver), which looks real size for the recipient user, is Ws (pict,
receiver) = Ws (pict, sender) × P (receiver) /
It can be obtained by P (sender).

According to the above-described procedure, the image can be displayed so as to be felt in a full size. However, in the image display stage, the information unique to the sender user A is used based on the information of the sender user A. In order to eliminate the need to refer to the parameter P (sender), after photographing and adjusting the image at the photographing stage, the adjusted image display size Ws (pict, pict,
sender) instead of Ws (pict) = Ws (pict, sene
r) / P (sender) is recorded. When displaying an image, the user-specific parameter P (receiviv
er), Ws (pict) × P (receive
The image display size can be obtained as r). Also,
Similarly, even if the recipient user changes, the recipient user B
The image display size can be obtained as the user-specific parameter P (receiver B) of

As described above, according to the second embodiment, the user 208 is given the opportunity to adjust the size of the image at the time of shooting, and the ratio of the user-specific parameter obtained using the standard image is adjusted. By multiplying by the image size of, the difference in how the size of the user 208 feels can be offset while the component for correcting the influence of the image-specific factors such as the direction and the color of the subject 201 is stored. A feeling of a size close to the size of a real object can be shared between the user 208 who has captured the image and the user 208 who observes the image.

As described above, the present invention has been specifically described based on the embodiments. However, it is needless to say that the present invention is not limited to the above-described embodiments, and various changes can be made without departing from the gist of the present invention. .

[0036]

As can be seen from the above description, according to the present invention, the distance to the subject is measured at the same time as the image is taken, and the image is recorded or transmitted together with the angle of view information of the lens. When displaying an image, a subject included in the image can be displayed on a display screen in full size based on the recorded or transmitted distance information and lens angle-of-view information. In addition, by giving the user an opportunity to adjust the size of the image at the time of shooting, and by multiplying the adjusted image size by the ratio of the user-specific parameters obtained using the standard image, the image such as the orientation and color of the subject can be obtained. Since the difference in the perception of size between users can be offset while preserving the component that corrects the influence of the unique factor, the image was captured with a perception that is close to the size of the real object. It can be shared between the user and the user viewing the image.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram illustrating an overall schematic configuration of a full-size image input / output device according to a first embodiment of the present invention.

FIG. 2 is a schematic configuration diagram illustrating a schematic configuration of an image capturing unit according to the first embodiment.

FIG. 3 is a schematic diagram illustrating a distance between an image capturing unit and a subject according to the first embodiment.

FIG. 4 is a schematic diagram for explaining a method of obtaining a display size in the full-size image input / output device according to the first embodiment.

FIG. 5 is a schematic configuration diagram illustrating an overall schematic configuration of a correction device in a full-size image input / output device according to a second embodiment of the present invention.

FIG. 6 is a diagram illustrating a flow of an operation of a correction device in the full-size image input / output device according to the second embodiment.

[Explanation of symbols]

101: image photographing unit, 101A: photographing means, 101B ...
Distance measuring means, 102: subject, 103: output image signal of photographing means, 104: output angle-of-view information of distance measuring means, 1
05: display size calculation means (CPU), 106: image information storage device (memory device), 107: output display image signal of display size calculation means (CPU), 108: output display size information of display size calculation means (CPU) .., 109... Display means, 110...
Subject: 202: full-size image capturing device; 203: output image signal of full-size image capturing device; 204: control device for controlling overall operation; 205: output image signal of control device;
206: Variable magnification video projector, 207: Projected image, 208: User, 209: Control panel, 2
10: User-specific parameter recording device.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Shinichi Shiwa, Inventor 3-19-2 Nishishinjuku, Shinjuku-ku, Tokyo Inside Japan Telegraph and Telephone Corporation (72) Susumu Ichinose 3-19, Nishishinjuku, Shinjuku-ku, Tokyo No. 2 Nippon Telegraph and Telephone Corporation (72) Aiko Kitagawa Inventor 3-19-2 Nishi Shinjuku, Shinjuku-ku, Tokyo F-Term within Nippon Telegraph and Telephone Corporation 5C022 AA00 AB21 AB66 AC01 AC54 AC69 5G435 BB17 BB19 DD02 DD03 DD04 DD06 DD09 LL04 LL15

Claims (8)

[Claims] A photographing means for photographing a subject; a distance measuring means for measuring a distance from the photographing means to the subject; and a display size of an image based on a photographing lens angle of view of the photographing means and a distance to the subject. Display size calculation means for calculating;
An image display means for displaying an image taken by the photographing means at the calculated full-size display size. 2. A photographing means for photographing a subject, a distance measuring means for measuring a distance from the photographing means to the subject, and a display size of an image based on a photographing lens angle of view of the photographing means and a distance to the subject. Display size calculation means for calculating;
Output image information of the photographing means, distance information to a subject,
And an image recording means for recording the information of the angle of view of the photographing lens, and an image display means for displaying an image photographed by the photographing means at the calculated actual large display size. Large image input / output device. 3. A photographing means for photographing a subject, a distance measuring means for measuring a distance from the photographing means to the subject, and a display size of an image based on a photographing lens angle of view of the photographing means and a distance to the subject. Display size calculation means for calculating;
Image recording means for recording an image display size for real-size display calculated based on distance information to a subject and angle-of-view information of a photographing lens together with image information, and an image photographed by the photographing means. An image display means for displaying the image at the calculated actual size display size. 4. The image input / output device according to claim 1, wherein the display size adjustment device finely adjusts the size of a display image by a user operation. A user-specific parameter recording unit that records a user-specific parameter obtained from the adjustment device; and a corrected display size calculation unit that determines a display size based on the full-size display size and the user-specific parameter calculated by the display size calculation unit. A full-scale image input / output device characterized by comprising: 5. An image display size correcting method for a full-size image input / output device according to claim 4, wherein a user displays an image of a standard object having a known size so that the image looks like a full-size image. A user-specific parameter calculated for each user as a ratio between the display size when the image display size is adjusted and the image display size for displaying the image at the true size is obtained for each user. The display size of the image is corrected by dividing the adjusted image size by the user-specific parameter of the user who captures the image, and multiplying by the user-specific parameter of the user who observes the image. Image display size correction method. 6. The image display size correcting method according to claim 5, wherein a user-specific parameter is measured using a plurality of standard objects having different sizes and recorded together with the size of the standard object. An image display size correction method, wherein correction is performed using a user-specific parameter measured using a standard object having a size closest to the size of the image. 7. A recording medium storing a program for causing a computer to execute a processing procedure of an image display size correcting method in the full-size image input / output device according to claim 4, wherein the standard size has a known size. The procedure for displaying the image of the object, and the user calculated as the ratio between the display size when the user adjusts the image display size so that it looks like a real size and the image display size that is displayed at the true size. A procedure for obtaining a unique parameter for each user; a procedure for dividing the adjusted image size by the user-specific parameter of the user who shoots the image; Each step of the image display size correction method for correcting the display size of the image by multiplying the value by a user-specific parameter of the user who observes the image A recording medium recording a program to be executed by the Yuta. 8. The image display size correcting method according to claim 7, wherein a user-specific parameter is measured by using a plurality of standard objects having different sizes, and the size of the standard object is recorded together with the standard object. Recording medium storing a program for causing a computer to execute each procedure of an image display size correction method having a procedure of performing correction using a user-specific parameter measured using a standard object having a size closest to the size .