JPH08139836A - Film scanner - Google Patents

Abstract

PURPOSE: To provide a film scanner in which a frame is displayed accurately in an easy to see way in the case of reproduction of a consecutive shot scene or reproduction of a multi-screen. CONSTITUTION: The scanner is provided with an image sensor (CCD 4) reading image information recorded on each frame of a film 2, a signal processing means (analog signal processing circuit 12, A/D converter 5, a digital signal processing circuit 6) processing an output image signal from the image sensor, a storage means (image memory 7) storing the image signal processed by the signal processing means, a discrimination means (consecutive shot scene discrimination circuit 10) discriminating whether or not the image information relates to consecutive image pickup, and a control means (memory output control section 14) controlling an output signal from the storage means based on an output of the discrimination means.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a film scanner, and more particularly to a film scanner which captures an image on a film, which has been photographed by a silver salt camera and developed, as an image signal by an image pickup device.

[0002]

2. Description of the Related Art Conventionally, Japanese Patent Application Laid-Open No. 4-68877 discloses a technical means for reading a film image with a film scanner equipped with an image sensor and outputting it to a monitor or the like after digital signal processing.

FIG. 4 is a block diagram showing an example of a film scanner generally used conventionally. The film scanner will be described below along the flow of signals.

An image on a film 42 taken by a silver halide camera is illuminated by a light source 41 and driven by an analog signal processing circuit 49 through a lens 43 located on the opposite side of the film 42 from the film 42. It is photoelectrically converted by an image pickup device, for example, CCD 44, and is output as an analog video signal.

The analog video signal from the CCD 44 is subjected to processing such as sample hold by the analog signal processing circuit 49, and then the analog / digital converter 45.
Is converted into a digital signal by. Thereafter, the digital signal is subjected to γ / KNEE correction or white balance processing in the digital signal processing circuit 46, converted into a predetermined analog signal in the digital / analog converter 48, and passed through the output buffer 47 to the next stage, For example, monitor 5
It is output for 0 and so on.

When displaying an image on the monitor 50 or the like, the film 42 is moved so that a target frame is imaged by an image sensor, for example, a CCD 44.

FIG. 5 is a block diagram showing another example of a conventional film scanner. The film scanner will be described below along the flow of signals.

An image on a film 52 taken by a silver halide camera is illuminated by a light source 51, and an image is driven by an analog signal processing circuit 60 through a lens 53 located on the opposite side of the light source 51 with respect to the film 52. It is photoelectrically converted by an element, for example, CCD 54, and is output as an analog video signal.

The analog video signal is subjected to processing such as sample hold by the analog signal processing circuit 60 and then converted into a digital signal by the analog / digital converter 55. This digital signal is processed by the digital signal processing circuit 56 such as γ / KNEE correction or white balance and then stored in the image memory 57 at a different address for each frame, and is output to the next stage by designating the address. It

The digital signal output from the image memory 57 is converted into a predetermined analog signal by the digital / analog converter 59 and output to the monitor 61 through the output buffer 58.

When displaying an image on the monitor 61,
The address of the target frame is specified in the image memory 58.
During multi-screen reproduction, a multi-screen is created by displaying a reduced screen for a number of frames, which is obtained by thinning out digital data for one screen of each frame to be displayed, which is stored in the image memory 57.

By the way, recently, there are many models of silver halide cameras having a continuous shooting function, which are often used when it is desired to shoot a series of operations such as sports scenes. When watching a film shot in continuous shooting with such an intention on a monitor or the like using a film scanner, if the images on the monitor are also continuously frame-fed, it is moving and realistic. , If you can see the trajectory of movement, it is useful for training.

In the case of the film scanners of the two examples described above, if all the frames in the film are simply frame-advanced regardless of the continuous shooting scene or the discontinuous shooting scene, the former can be fast-frame-advancing the film itself. , The latter is possible by continuously changing the memory address.

On the other hand, Japanese Patent Laid-Open No. 62-3559 discloses that
A technical means for reading the code pattern on the film to know the loaded state of the film is disclosed.

[0015]

However, in the above-mentioned two technical means, the operator of the scanner must judge whether or not the scene is a continuous shooting scene and continuously reproduce the scene. In addition, not all the number of shots of the film are continuous shooting scenes, and there may be shooting scenes such as landscape scenes and portrait continuous shooting scenes before and after the continuous shooting scene. With the configuration of the means, since such scenes are also advanced by high-speed frames like continuous shooting scenes, the screen is unsightly and gives viewers an unpleasant feeling.

Further, since the frame feed speed is not always equal to the frame feed speed at the time of film shooting, an unnatural continuous shooting scene is reproduced, and the locus cannot be seen.

Also, when watching on a monitor or the like, for example,
When searching for frames, it is easier to search for the desired frame by displaying all or as many frames in the film as possible on a single screen by multi-screen playback, rather than searching for the desired frame by frame advance. Yes, it is efficient.

However, if continuous shooting scenes and other discontinuous shooting scenes are mixed in one film, many similar scenes are displayed on the screen due to the continuous shooting scenes when multi-screen playback is performed. As a result, the continuous shooting scene part prevents the display of many different scenes in one screen.

On the other hand, with the technical means disclosed in the above-mentioned Japanese Patent Laid-Open No. 62-3559, only the film loading state and information peculiar to the film can be known, and it is not related to the display of the photographed image.

The present invention has been made in view of the above problems, and it is an object of the present invention to provide a film scanner capable of accurate and easy-to-see frame display during continuous shooting scene reproduction or multi-screen reproduction.

[0021]

In order to achieve the above object, a first film scanner according to the present invention comprises an image sensor for reading image information recorded on each frame of a film, and an output image from the image sensor. A signal processing means for processing the signal, a storage means for storing the image signal processed by the signal processing means, a discriminating means for discriminating whether or not the image information relates to continuous photographing, and an output of the discriminating means. Control means for controlling the output signal from the storage means based on the above.

To achieve the above object, the second film scanner according to the present invention is the first film scanner according to the first film scanner, wherein the control means associates each image information relating to continuous shooting with a shooting interval and a predetermined relationship. It is characterized in that control is performed to form a display signal for sequentially displaying with a certain property.

In order to achieve the above object, the third film scanner according to the present invention is the first film scanner according to the first film scanner, wherein the control means arranges and displays a plurality of image information on one screen in the order of photographing. Regarding the image information related to continuous shooting, control is performed so as to form a display signal for displaying only representative image information for each continuous shooting.

[0024]

In the first film scanner according to the present invention, the image sensor reads the image information recorded on each frame of the film, and the output image signal from the image sensor is processed by the signal processing means. Further, the image signal processed by the signal processing means is stored in the storage means, and the determination means determines whether or not the image information relates to continuous shooting. Then, the control means controls the output signal from the storage means based on the output of the discrimination means.

A second film scanner according to the present invention is
In the first film scanner, the control means performs control to form a display signal for sequentially displaying each piece of image information relating to continuous shooting with a predetermined relationship with the shooting interval.

A third film scanner according to the present invention comprises:
In the first film scanner, the control means displays only a plurality of pieces of image information on a single screen in the order of shooting, and displays only representative image information for each continuous shooting for image information related to continuous shooting. Control is performed to form a display signal.

[0027]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing the structure of a film scanner which is a first embodiment of the present invention. The film scanner will be described below along the flow of signals.

The image information on the film 2 photographed by the silver halide camera is illuminated by the light source 1 and driven by the analog signal processing circuit 12 through the lens 3 located on the opposite side of the light source 1 with respect to the film 2. It is photoelectrically converted by the CCD 4 which is an image sensor and is output as an analog video signal.

The analog video signal is processed by the analog signal processing circuit 12 such as sampling and holding, and then converted into a digital signal by the analog / digital converter 5, and is converted by the digital signal processing circuit 6 into, for example, γ.
・ Receive KNEE correction or white balance processing.
The analog signal processing circuit 12, the analog-digital converter 5, and the digital signal processing circuit 6 constitute a signal processing means for processing the output image signal (analog video signal) from the image sensor.

The output signal from the digital signal processing circuit 6 is stored in the image memory 7 as a storage means for storing the image signal processed by the signal processing means at a different address for each frame.

At this time, the photographing information recorded, for example, magnetically on the film 2 is read by the information reader 9 composed of, for example, a magnetic information reader, and the read information is continuously shot scene discrimination circuit. Send to 10. The continuous shooting scene determination circuit 10 constitutes a determination means for determining whether or not the image information on the film 2 read by the information reader 9 is related to continuous shooting.

The information reader 9 is the photographing information recorded on the film 2, that is, "a mode in which continuous shooting is performed at interval n seconds (n>0)" or "a normal mode other than continuous shooting. Information such as "is" is read. Then, based on the information, the continuous shooting scene determination circuit 10 determines whether or not the image on the film 2 is related to continuous shooting.

The output discriminated by the continuous shooting scene discrimination circuit 10 is sent to the memory output control unit 14. The memory output control unit 14 constitutes a control unit that controls an output signal from the storage unit (image memory 7) based on the output from the continuous shooting scene determination circuit 10, and uses the shooting time information, for example, A control signal is sent to the image memory 7 so that the digital signal for reading only the frame having continuous shooting information from the image memory 7 is changed to the next frame at the same interval as the frame feed speed at the time of shooting or at an arbitrary interval time. Is output.

The memory output control unit 14 includes an operation unit 1
5 is connected, and the above-mentioned control of the image memory 7 is operated by the operation unit 15. That is, the operator sets the interval time by operating the operation unit 15.

The digital signal output from the image memory 7 is converted into an analog signal by the digital / analog converter 11 and output to the monitor 13 through the output buffer 8. At this time, the frame advancing speed of the image appearing on the monitor 13 is the same as the frame advancing speed when the film is photographed by the silver halide camera, or an arbitrary speed set by the operator.

Further, when the multi-screen reproduction is performed, the above-mentioned photographing information is used, and for example, for a frame having continuous shooting information, a digital signal is read from the image memory 7 only for a representative frame of the continuous shooting, for example, the first frame of continuous shooting. The memory output controller 14 outputs to the image memory 7 a control signal for thinning-out reading so as to obtain a reduced frame. At this time, for example, only the representative frame of the continuous shooting scene is displayed around the frame when the screen is displayed so that the viewer of the monitor can easily distinguish the representative frame of the continuous shooting scene from the frames of other discontinuous shooting scenes. An identification signal is added so that a line on the frame is displayed. The operator determines the representative frame by operating the operation unit 15.

Further, the reading of each frame is made to be sequentially displayed from the upper left of the monitor to the right. The digital signal to which the identification signal is added is converted into an analog signal by the digital / analog converter 11 and output to the monitor or the like through the output buffer 8. Therefore, the multi-screen displayed on the monitor is a multi-screen in which only the representative frame of the continuous shooting scene is framed and the non-continuous shooting scene is displayed normally.

As described above, according to the first embodiment, when the continuous shooting scene is reproduced, the film scanner automatically discriminates only the continuous shooting scene portion, so that the trouble of operating the scanner can be simplified and the continuous shooting scene can be simplified. There is no discomfort caused by seeing an unsightly screen that changes continuously. Also, since the interval time can be set to the same time as when shooting with a silver salt camera or any time, a series of movements of continuously shot scenes can be viewed on a realistic screen.

Further, during multi-screen playback, since only representative frames are displayed, many different scenes can be displayed with a small number of screens, and continuous shooting scenes and discontinuous shooting scenes can be easily distinguished. Therefore, it is possible to display an accurate screen desired by the viewer.

Next, a second embodiment of the present invention will be described.

FIG. 2 is a block diagram showing the structure of the film scanner of the second embodiment. The film scanner will be described below along the flow of signals. In addition, the first
The same components as those in the embodiment are designated by the same reference numerals, and detailed description thereof will be omitted.

The film scanner of the second embodiment is provided with a composite screen creating circuit 21 for creating digital signals for one screen by combining digital signals for a plurality of frames in addition to the structure of the first embodiment. ing. Further, the composite screen creation circuit 21 is controlled by the memory output control unit 22 which has the same function as the memory output control unit 14 in the first embodiment.

That is, the composite screen creating circuit 21 is
Based on the output from the continuous shooting scene determination circuit 10, the first
As in the embodiment, it is controlled by the memory output control unit 22 for controlling the image memory 7, and a composite screen is created by digital signals of all frames or arbitrary plural frames of the continuous shooting scene output from the image memory 7. Has become.
The operator operates the operation unit 15 to set the frames to be combined.

The composite screen creating circuit 21 pays attention to the moving subject in the screen, extracts only the outline of the subject and superimposes it on the background screen, and the moving subject of the final composite frame is the original composite screen. It is created and output to the latter stage.

According to the second embodiment, in addition to the effect of the first embodiment, the trajectory of the object can be traced during the reproduction of the continuous shooting scene, so that a film scanner effective for sports and other research can be provided.

Next, a third embodiment of the present invention will be described.

FIG. 3 is a block diagram showing the structure of the film scanner of the third embodiment. The film scanner will be described below along the flow of signals. In addition, the first
The same components as those in the embodiment are designated by the same reference numerals, and detailed description thereof will be omitted.

In the first embodiment, the continuous shooting scene determination circuit 10 determines whether or not the continuous shooting scene is based on the screen information of the film 2 read by the information reader 9 (see FIG. 1). The film scanner of the third embodiment is configured to determine whether or not it is a continuous shooting scene by comparing information from the image memory 7, that is, peripheral images. In this embodiment, first, several points of color and brightness level in a predetermined screen are extracted, and the difference between the color and brightness level at the same point on another screen to be compared is all points.
Alternatively, when the majority of points are within the threshold range, it is determined that the scene is a continuous shooting scene.

Then, the result of the continuous shooting scene discrimination circuit 10 is the same as in the first and second embodiments, and the memory output control unit 1
4, the memory output control unit 14 controls the image memory 7 based on the determination result. It should be noted that setting of the reproduction screen interval time during reproduction of continuous shooting scenes and selection of a representative frame during reproduction of multiple screens are performed by the operation unit 15 which is monitor output setting means, as in the first embodiment. ing.

The other structure and operation are the same as those of the first embodiment, and the description thereof is omitted here.

According to the film scanner of the third embodiment, it is not necessary to previously record continuous shooting information on the film,
Furthermore, an information reader 9 (FIG. 1) for reading the continuous shooting information is used.
(See) and the like are not necessary, so the above first
An effect equivalent to that of the embodiment can be obtained.

The technical means of the third embodiment can also be applied to the first and second embodiments. That is, even in the first and second embodiments, the continuous shooting scene determination circuit 10 is configured to be able to determine the continuous shooting scene based on the information from the image memory 7, so that the continuous shooting information is recorded on the film 2 for some reason. Even when it is not recorded, the continuous shooting scene can be discriminated by the image information from the image memory 7, and it is possible to cope with forgetting to record the information.

In each of the above embodiments, the light source 1 is arranged so as to be located on the side opposite to the lens 3 and the CCD 4 with respect to the film 2, but it may be arranged on the same side. The above photographing information is not magnetic information but a bar code or other optical information, which may be read by an image sensor, a photo reflector, or other optical detecting means.

Further, although the above-mentioned photographing time information refers only to "continuous shooting" and "interval time", information such as shutter speed, aperture, lens position, etc. may be read and used for continuous shooting determination. Absent.

Further, the multi-screen may be composed of only continuous shooting scenes, and the display position of each frame on the monitor is not limited to the above example, and may be, for example, a spiral display or another display position. Furthermore, the representative frame of the continuous shooting scene may be the last frame or an intermediate frame instead of the first frame of the continuous shooting.
The representative frame may be a plurality of frames that are a combination of them, instead of the frames.

Further, the identification signal of the continuous shooting scene and other scenes may be added not to the continuous shooting scene but to the discontinuous shooting scene or both. In the above example, the frame-shaped line display is used. Any display may be used as long as the representative frame of continuous shooting and the discontinuous shooting scene can be identified by. Further, instead of the contour of the moving subject, the subject may be overlapped as it is, and the background may be different from the original image.

[Additional Notes] According to the embodiment of the present invention as described in detail above, the following configuration can be obtained. (1) An image sensor for reading the image information recorded on each frame of the film, a signal processing means for processing an output image signal from the image sensor, and an image signal processed by the signal processing means are stored. A storage means, a determination means for determining whether or not the image information is related to continuous shooting based on the shooting information recorded on the film at the time of shooting, and an output signal from the storage means is controlled based on the output of the determination means. A film scanner comprising: a control unit.

(2) An image sensor for reading the image information recorded on each frame of the film, a signal processing means for processing an output image signal from the image sensor, and an image signal processed by the signal processing means are stored. Storage means, determination means for determining whether or not the image information relates to continuous shooting by image comparison, and control means for controlling an output signal from the storage means based on the output of the determination means. A film scanner characterized by the above.

(3) An image pickup device for picking up each frame of a negative or positive film after being photographed and developed by a silver halide camera, and an analog signal processing circuit for driving the image pickup device and sample-holding its output. , An analog / digital converter for converting the analog video signal output from the analog signal processing circuit into a digital signal, a digital signal processing circuit for processing the digital signal, and a digital signal processed by the digital signal processing circuit An image memory to be stored, a continuous shooting scene determination circuit that determines a continuous shooting scene from digital signals corresponding to each frame in the image memory, and a digital signal that converts the digital video signal output from the image memory into an analog signal. Monitor the analog converter and the analog video signal from this digital-analog converter A film scanner, comprising: a video output buffer for outputting to the monitor; and output mode setting means from the monitor, and controlling output from the image memory according to the setting of the output mode setting means.

(4) The film scanner according to (3), wherein the continuous shooting scene determination circuit determines the continuous shooting scene by using the photographing information recorded on the film.

(5) The output mode by the output mode setting means is an automatic frame advance mode, and during reproduction of continuous shooting scenes, it is equal to the frame advance interval time during continuous shooting by the silver halide camera according to the above shooting time information. The film scanner as described in (4) above, which controls to output a digital signal frame by frame from the image memory for reproduction at an interval time.

(6) The film scanner as described in (5) above, wherein the interval time for frame-by-frame output of a digital signal from the image memory can be arbitrarily set.

(7) The output mode by the output mode setting means is a multi-screen mode, and by the output of the continuous shooting scene discrimination circuit, only the digital signal of the continuous shooting scene frame is output from the image memory and reproduced. ) Or the film scanner as described in (4).

(8) The output mode set by the output mode setting means is a multi-screen mode, and when the digital signal in the image memory is output for a plurality of frames and is reproduced, the continuous shooting scene discrimination circuit outputs the continuous signal. The film scanner according to the above (3) or (4), wherein the photographed scene is controlled so that only its representative frame is displayed on the monitor.

(9) The film scanner as described in (8) above, wherein when a multi-screen is played back, the representative frame of the continuous shooting scene part and the frame which is the discontinuous shooting scene are displayed differently.

(10) In the film scanner described in (3) or (4) above, the digital signals for a plurality of frames output from the image memory are further combined to create a combined screen digital signal for one screen. The output mode of the composite screen is the composite photo mode, and the composite screen creating circuit is provided to composite and reproduce a series of frames of the continuous shooting scene portion into one screen.

(11) The film scanner according to (10), wherein the frame to be combined is an arbitrary frame in the continuous shooting scene portion.

According to the film scanner described in the above (1), it is possible to provide a film scanner capable of accurate and easy-to-see frame display during continuous shooting scene reproduction or multi-screen reproduction.

According to the film scanner described in (2) above, it is possible to provide a film scanner capable of accurate and easy-to-see frame display during continuous shooting scene reproduction or multi-screen reproduction with a simpler configuration.

According to the film scanner described in (3) above, it is possible to provide a film scanner capable of accurate and easy-to-see frame display during continuous shooting scene reproduction or multi-screen reproduction.

According to the film scanner described in (4) above, accurate and easy-to-see frame display based on image information at the time of shooting can be performed during continuous shooting scene playback or multi-screen playback.

According to the film scanner described in the above (5), during continuous shooting scene reproduction, reproduction can be performed with an interval time equal to the frame advance interval time during continuous shooting with a silver halide camera, and reproduction with a sense of realism can be performed. be able to.

According to the film scanner described in (6) above, the continuous shooting scene can be reproduced at any desired interval time.

According to the film scanner described in (7) above, the continuous shooting scene desired by the operator can be displayed accurately and easily when reproducing the multi-screen.

According to the film scanner described in (8) above, the representative frame of the continuous shooting scene desired by the operator can be accurately displayed and more frames can be displayed during multi-screen playback.

According to the film scanner described in (9) above, the representative frame of the continuous shooting scene and the discontinuous shooting scene frame desired by the operator can be accurately displayed in a legible manner during multi-screen playback.

According to the film scanners described in (10) and (11) above, the trajectory of an object can be traced during reproduction of a continuous shooting scene, so that a film scanner that is effective in sports and other research can be provided.

[0079]

As described above, according to the invention described in the first aspect, it is possible to provide a film scanner capable of accurate and easy-to-see frame display during continuous shooting scene reproduction or multi-screen reproduction.

According to the second aspect of the invention, it is possible to provide a film scanner capable of accurately displaying a continuous photographed image with a sense of realism during reproduction of a continuous photographing scene.

Furthermore, according to the third aspect of the invention, it is possible to provide a film scanner capable of accurately displaying a large number of desired photographed images during multi-screen reproduction. .

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a film scanner that is a first embodiment of the present invention.

FIG. 2 is a block diagram showing a configuration of a film scanner that is a second embodiment of the present invention.

FIG. 3 is a block diagram showing a configuration of a film scanner that is a third embodiment of the present invention.

FIG. 4 is a block diagram showing a configuration example of a conventional film scanner.

FIG. 5 is a block diagram showing another configuration example of a conventional film scanner.

[Explanation of symbols]

 1 ... Light source 2 ... Film 3 ... Lens 4 ... CCD 5 ... Analog / digital converter 6 ... Digital signal processing circuit 7 ... Image memory 8 ... Output buffer 9 ... Information reader 10 ... Continuous shooting scene discrimination circuit 11 ... Digital / analog Converter 12 ... Analog signal processing circuit 13 ... Monitor 14 ... Memory output control unit 15 ... Operation unit 21 ... Synthesis screen creation circuit

Claims (3)

[Claims] 1. An image sensor for reading image information recorded on each frame of a film, a signal processing means for processing an output image signal from the image sensor, and an image signal processed by the signal processing means. Storage means; determination means for determining whether or not the image information is related to continuous shooting; and control means for controlling an output signal from the storage means based on the output of the determination means. And a film scanner. 2. The control means performs control so as to form a display signal for sequentially displaying each piece of image information relating to continuous shooting with a predetermined relationship with an interval at the time of shooting. The film scanner described in. 3. The control means displays a plurality of pieces of image information side by side in the order of shooting on one screen and displays a display signal for displaying only representative image information for each continuous shooting for image information relating to continuous shooting. The film scanner according to claim 1, wherein the film scanner is controlled to be formed.