JP2002077821A - Image acquisition unit, image recorder/reproducer and image input unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform recording/reproduction of a dynamic image while monitoring it. SOLUTION: The image acquisition unit comprises a video recorder for separating a video signal into two field signals in an interlace signal, a section 63 for scaling two separated field signals independently, a section 62 for color converting two separated field signals independently, and a DMA transfer control section 61 for transferring two scaled and color converted field signals to different storage units.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for capturing, recording, and reproducing an input moving image, and more particularly to an apparatus for reproducing a moving image from a free scene (position).

[0002]

2. Description of the Related Art A conventional image recording / reproducing apparatus has a configuration shown in FIG.

[0003] As shown in FIG. 10, the image recording / reproducing apparatus comprises an information processing apparatus 21 and an image input apparatus 22. The image input device 22 is a unit for inputting an analog moving image (video), and includes a video camera and a VT.
R, television, etc. Here, an example of a video camera is shown. The information processing device 21 includes a unit for digitizing an analog moving image input from the image input device 22 and a unit for recording a moving image digitized by the unit. 22
This is a device for recording a moving image input from a computer.

Next, an outline of processing of a conventional image recording / reproducing apparatus having the apparatus configuration shown in FIG. 10 will be described with reference to FIG.

FIG. 11 shows, for example, a process for specifying a portion where a scene has changed in a series of images (moving images) input from the image input device 22 in order to perform cue reproduction. It is a flowchart.

In this process, first, a moving image is fetched (step 501), and one frame or one field of analog image input from the image input device 22 is digitized (step 502). Here, the moving image input from the image input device 22 is NTSC or PA.
It has a standardized format such as L or SECAM.

Next, in the above processing, the digitized image is stored in the main storage device of the information processing device 21 (step 503). Then, the image is compared with the image stored immediately before (step 504), and it is determined whether or not the scene has changed (step 505). At this time, whether or not the scene has changed is determined by comparing the two images on a pixel-by-pixel basis, calculating the difference therebetween, and calculating the sum of the differences of all the pixels. For example, if the sum exceeds an arbitrary threshold, it is determined that the scene has changed.

If it is determined in step 505 that the scene has changed, the time from the start of capturing the moving image of the image is stored in the main memory (step 506). Then, it is determined whether or not the capture has been completed (step 507).
Repeat the process. If the capture has been completed, a series of uncompressed moving images is stored in the auxiliary storage device of the information processing device 21 (step 508), and the process ends.

[0009] Thereafter, the conventional image recording / reproducing apparatus includes:
In step 506, the images at the positions where the scenes have changed are displayed as a list on the display device of the information processing device 21 and correspond to any image in the list displayed by the user from the input device of the information processing device 21. The time stored in the memory is extracted, and in step 508, the moving image stored in the auxiliary storage device is searched for from the image (position) corresponding to the time and reproduced.

Japanese Patent Application Laid-Open No. 6-133305 discloses a technique for automatically extracting a scene change of a moving image and encoding the moving image including the information.

A technique for displaying a moving image in real time on a display device or the like is described on pages 102 to 109 of the April 1996 issue of Interface Magazine, published by CQ Publishing Company.

[0012]

However, FIG.
In the prior art as shown in (1), a series of uncompressed moving images are captured to detect a change in a scene, and are stored in an uncompressed auxiliary storage device. Is not taken into account.

In Japanese Patent Application Laid-Open No. Hei 6-133305, since information on a scene change is included in a compressed moving image, it is necessary to search the moving image from the beginning to the end each time before reproduction. Not considered for processing speed.

The technology described in the interface magazine is as follows.
No consideration is given to displaying a moving image on a display device and recording the moving image in an auxiliary storage device or the like.

SUMMARY OF THE INVENTION It is an object of the present invention to convert a moving image input from an image input device into an uncompressed moving image and a moving image compressed by using a compression technique capable of reproducing at a relatively high compression rate and high image quality. It is an object of the present invention to provide an image capturing device that captures an information processing device in real time and simultaneously, an image storage / reproducing device equipped with the image capturing device, and an image input device.

[0016] Also, by associating an arbitrary image in the uncompressed moving image with an arbitrary image in the compressed moving image from information obtained based on the uncompressed moving image, a moving image can be recorded. Another object of the present invention is to provide an image storage / reproducing apparatus for performing image recording / reproducing which can easily perform reproduction / display.

Still another object is that when the uncompressed moving image is taken into the information processing apparatus, odd field data and even field data in an interlace signal input from the image input apparatus are different in size and size. An image capturing device that converts the image into a color format and transfers the image to a different area or device, while mounting the image capturing device and monitoring a moving image input from the image input device on a display device included in the information processing device. Another object of the present invention is to provide an image storage / reproducing apparatus for simultaneously recording and reproducing the moving image.

[0018]

According to the present invention, there is provided an image capturing apparatus mounted on an image recording / reproducing apparatus for recording a moving image provided with a main memory and a display device, for inputting an analog moving image. A video decoder for digitizing the moving image, a moving image compression unit for compressing the digitized moving image into a compressed moving image, and a main memory and the display for displaying the digitized moving image output from the video decoder. An image capturing device comprising: a moving image input interface unit that transfers a compressed moving image output from the moving image compression unit to the main storage at the same time as transferring the moving image to the device.

According to the present invention, there is provided an image recording / reproducing apparatus for recording a moving image provided with a main memory and a display device, comprising: a video decoder for inputting an analog moving image and digitizing the input moving image; A moving image compression unit for compressing the converted moving image into a compressed moving image, and transferring the digitized moving image output from the video decoder to the main storage and the display device at the same time as being output from the moving image compression unit. A moving image input interface unit for transferring a compressed moving image to the main memory, the moving image input interface unit separating the digitized moving image into two field signals in an interlace signal, and And transferring the other field signal to the display device. The display device transmits the moving image input interface. An image displaying a moving image by a field signal transferred from a face unit, wherein the main memory stores the field signal transferred from the moving image input interface unit at the same time as the display device displays the moving image. It is a recording and reproducing device.

Further, preferably, the image recording / reproducing apparatus has a frame memory for holding at least one screen image of a moving image digitized by the video decoder, and the moving image input interface unit receives the video data from the video decoder. A video signal input / output unit that divides an input digital moving image into odd field data and even field data and stores them in the frame memory, and sequentially takes out odd field data and even field data from the frame memory to perform scaling. A scaling unit for performing, a color conversion unit for converting data input from the scaling unit to a predetermined color format,
A compressed image input / output unit that captures data input according to a predetermined protocol from the moving image compression unit, and a data input from the color conversion unit and a compressed moving image input from the compressed image input / output unit. A DMA transfer control unit for transferring the data to the main memory or the display device, and a bus input / output unit for flowing data to a bus generally used in an information processing device or capturing data flowing to the bus. .

Preferably, information extracting means for extracting arbitrary information based on the uncompressed moving image captured by the image capturing means, and information extracted from the information extracting means and the image capturing means. And correspondence information generating means for associating the compressed moving image captured from the, the information extracting means, at any time of a series of uncompressed moving images captured from the uncompressed image capturing device, The apparatus has a function of extracting a time from the start of capturing a moving image, and the correspondence information generating unit extracts an image (position) having the same time as the time in the compressed moving image captured from the compressed image capturing apparatus. It has the function of associating.

Preferably, the image recording / reproducing apparatus further comprises an input device for a user to give an instruction, and a compressed image reproducing device for reproducing the compressed moving image. An image recording / reproducing apparatus having a function of cueing and reproducing the compressed moving image from the image associated with the instruction or an image near the front and rear of the image in response to an instruction input from the input means. Is also conceivable.

Preferably, the image capturing device and the compressed image reproducing device may be combined.

The image recording / reproducing apparatus according to the present invention performs, for example, the following operation. In response to an instruction input by the user from the input unit, the image capturing device digitizes a moving image input from the image input device and captures the moving image in an uncompressed state, and a moving image input from the image input device. The image is digitized and converted into a compressed moving image that can be reproduced with a high compression rate and high image quality, and then captured.
At this time, the two moving images are generated from the same video source and are captured simultaneously and in real time.

When detecting a change in a scene, for example, the information extracting means includes at least an image obtained by analyzing the uncompressed moving image immediately after the scene has changed, and a moving image of the image. The correspondence information generating means extracts an image (position) having the same time as the time in the compressed moving image captured at least from the image capturing device, and extracts the time from the start of capturing. Generate correspondence information for associating two images.

Also, the uncompressed moving image is divided into odd field data and even field data and transferred to the main storage and the display device, respectively, so that the moving image input from the image input device is displayed on the display device. It is possible to detect a change in a scene while monitoring with a device.

Further, the display device displays at least the image immediately after the scene change, and when the user designates the image by the input means, the compressed image reproducing device causes the image and the correspondence information to be displayed. Thus, the image for which cue reproduction is to be started in the compressed moving image is specified and reproduced.

[0028]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a first embodiment according to the present invention will be described with reference to the drawings.

FIG. 14 is a hardware configuration diagram of an information processing apparatus such as a personal computer to which the image recording / reproducing apparatus of the first embodiment can be applied.

As shown in FIG. 14, the apparatus comprises a CPU 1
, Main memory 2, auxiliary storage device 3, input device 4, display device 5, image input device 6, image capture device 12
And a compressed image reproducing device 9. The components other than the image input device 6 are connected by a bus 10 so that necessary information can be transmitted between the components.

The image input device 6 is connected to the image capturing device 12 and configured to transmit video information from the image input device 6 to the image capturing device 12.
The image capturing device 12 has a CP connected via a bus.
It is configured to be attached to an information processing device 21 such as a PC constituted by U1 or the like, or to be built in the image input device 6 as shown in FIG. The image capturing device shown in FIG. 22 has a built-in CCD camera 56, except that the image capturing device shown in FIG.
Has the same configuration as the image capturing device 12 shown in FIG.

The main memory 2 is a means for functioning as a work area and storing necessary programs, and can be realized by a RAM for the former and a ROM for the latter. The auxiliary storage device 3 is a means for storing a program for controlling the operation of the device, a compressed moving image, and the like, and is realized by, for example, a floppy (registered trademark) disk, a hard disk, a memory card, a DVD, or the like. it can. The input device 4 is a unit for inputting necessary commands and information, and can be realized by a pointing device such as a keyboard and a mouse, for example. The display device 5 is a unit that displays various information such as a reproduction display of a compressed moving image, and can be realized by, for example, a CRT, an EL display, a plasma display, a liquid crystal display, or the like.

The image input device 6 is a means for inputting an analog moving image (video), similarly to the image input device 22 in the above-mentioned prior art, and is realized by a video camera, a VTR, a television, a TV tuner, or the like. You. The image capturing device 12 is means for digitizing an analog moving image input from the image input device 6 and compressing the digitized moving image. As a compression (encoding) means, for example, an MPEG (Moving Picture) capable of reproducing with high compression rate and high image quality is used.
Experts Group).
Also, "Point-based Illustrated Latest MPEG Textbook", P28
To P29, edited by the Multimedia Communication Research Society, and the compression technology described in ASCII Publishing Bureau. MPEG
The details of the compression technique are described in "Point Illustrated Latest MPEG Textbook", P89-P165, edited by Multimedia Communications Research Group, ASCII Publishing Bureau.

The compressed image reproducing device 9 is a means for reproducing a moving image compressed by using the compression technique in the image capturing device 12 and displaying the reproduced image on the display device 5. For MPEG, MPEG
It can be realized by a decoder.

The CPU 1 performs a predetermined operation in accordance with a program stored in the main memory 2 and the auxiliary storage device 3 in advance.

Next, FIG. 15 shows a block diagram of the image capturing device 12. As shown in FIG.

As shown in FIG. 15, the image capturing device 1
2 includes a moving image input interface unit 50, a frame memory 51, a moving image compression unit 52, and a video decoder 53.

The video decoder 53 is connected to the image input device 6, and digitizes and outputs an analog moving image input from the image input device 6. For example, if the analog moving image input from the image input device 6 is an NTSC signal, the video decoder 53 can be realized as an NTSC decoder. In this case, the odd field signal and the even field signal in the interlaced signal of the NTSC format are digitized and output in time series.
The output moving image is input to the moving image compression unit 52 and the moving image input interface unit 50 at the same time. When the signal output from the image input device 6 to the image capturing device 12 is not an analog signal but a digital signal, the image capturing device 12 does not require the video decoder 53.

The image compression section 52 compresses the digitized moving image output from the video decoder 53 by using a compression technique such as MPEG. Then, the compressed moving image is output to the moving image input interface unit 50. For example,
If the compression technology is MPEG, the compressed moving image is MP
This is the EG stream.

The frame memory 51 includes a video decoder 5
This is for holding an image of at least one screen (frame) of the moving image digitized in 3 and is connected to the moving image input interface unit 50.

The moving image input interface unit 50 is connected to the bus 10 and once stores the digital moving image input from the video decoder 53 in the frame memory 51 and further converts the image stored in the frame memory 51 into the bus. DMA transfer to the main memory 2 or the auxiliary storage device 3 or the display device 5 through 10. At the same time, the compressed moving image input from the image compression unit 52 is also DMA-transferred to the main storage 2 or the auxiliary storage device 3 through the bus 10.

Next, FIG. 16 shows a block diagram of the moving image input interface unit 50. As shown in FIG.

As shown in FIG. 16, the moving image input interface unit 50 includes a bus input / output unit 60, a DMA transfer control unit 61, a color conversion unit 62, a scaling unit 63, a video signal input / output unit 64, And a compressed image input / output unit 65.

The bus input / output unit 60 is realized in accordance with a bus protocol such as PCI or ISA generally employed in information processing devices and the like, and allows data to flow to the bus 10 and data to flow through the bus 10. get.

The compressed image input / output unit 65 includes the moving image compression unit 52
And outputs data input according to a predetermined protocol to the DMA transfer control unit 61.

The video signal input / output section 64 stores the digitized moving image input from the video decoder 53 in the frame memory 51. Video decoder 53 is NTS
In the case of the C decoder, odd field data and even field data in a moving image, that is, an interlaced signal are input in a time-series manner.
Also sends a signal indicating whether the currently input data is odd field data or even field data. Therefore, each field data is separately stored in a predetermined area in the frame memory 51 in accordance with the signal. To be stored. If only one screen worth of data (data obtained by combining odd field data and even field data) can be stored in the frame memory 51, each of the previously stored field data is overwritten and stored.

The scaling section 63 includes a frame memory 5
The odd field data for one screen and the even field data for one screen are sequentially extracted, scaled to a predetermined size, and output to the color conversion unit 62.

The color conversion section 62 converts the data input from the scaling section 63 into a predetermined color format and outputs it to the DMA transfer control section 61. Normal,
The color format in the image data of the NTSC signal is Y
In the UV format, the frame memory 51 stores data in the YUV format. However, the color format of the data to be transferred to the main memory 2 or the display device 5 is RGB.
Often in the form. Therefore, the color conversion unit 62
At least a function of converting from the YUV format to the RGB format.

The DMA transfer control unit 61 transmits the data input from the color conversion unit 62 and the compressed moving image input from the compressed image input / output unit 65 to the bus input / output unit 60 and the bus 1.
0, the data is DMA-transferred to the main memory 2, the auxiliary storage device 3, or the display device 5. In addition, since the video decoder 53 and the moving image compression unit 52 operate asynchronously, data may be simultaneously input from the color conversion unit 62 and the compressed image input / output unit 65. In this case, the compressed image input / output unit 6
5 is preferentially DMA-transferred from the compressed moving image.
This is because if any part of the compressed moving image loses data, the entire data becomes meaningless.

FIG. 17 shows a moving image input interface section 50.
1 shows an example of a register configuration included in the present embodiment.

The register has at least an input resolution of 30.
1, an output resolution 302, a color format 303,
And a transfer destination address 304.

The input resolution 301 is determined by the video decoder 53
Specify the resolution of the data input from. The output resolution 302 specifies the resolution of data output on the bus 10. The color format 303 specifies a color format of data output on the bus 10. The transfer destination address 304 designates an address that can be addressed by the CPU 1 to which the data output on the bus 10 is finally transferred.

Each register is separately prepared for odd field data 310, even field data 320, and compressed moving picture 330. However, for the compressed moving image 330, only the transfer destination address 304 is provided. The moving image input interface unit 50 operates according to the value preset in each register. The setting of a value in each register is a program for driving the image capturing device 12, and the program is stored in the main memory 2 or the auxiliary storage device 3,
Performed by U1. The user sets a desired set value in each register via the program.

Next, the set values and operations of each register in the image capturing device 12 will be described with reference to FIG. Here, the case where the set value of each register has the contents shown in FIG. 17 will be described.

In FIG. 18, areas 1 and 2 are areas individually secured in the main memory 2. The region 3 is a part of a VRAM (display memory) included in a general display device. The data stored in the VRAM is displayed on a CRT or the like. The area 3 is, for example, an area on the VRAM corresponding to the display area of the window when a moving image is displayed in the window.

In FIG. 17, odd field data 3
The contents of the register of the transfer destination address 304 of area 10 are in area 2
, The contents of the register of the transfer destination address 304 of the even field data 320 indicate the start address of the area 3, and the contents of the register of the transfer destination address 304 of the compressed moving image 330 indicate the start address of the area 1. Then, the odd field data and the compressed moving image are transferred to the main memory 2, and the even field data is transferred to the display device 5.

Looking at the odd field data 310, the contents of the register of the input resolution 301 are 640 × 24.
0, and the content of the register of the output resolution 302 is 160
Since the size is × 120, the scaling unit 63 reduces the size to １ ／ in the horizontal direction and １ ／ in the vertical direction. further,
Since the content of the register of the color format 303 is RGB24, the color conversion unit 62 converts the data in the YUV format into R,
Both the G and B components are converted into an RGB format represented by 8 bits. Then, the DMA transfer control section 61 transfers the scaled and color-converted odd field data to the area 2 indicated by the contents of the register of the transfer destination address 304.

Looking at the even field data 320, the contents of the register of the input resolution 301 are 640 × 24.
0, and the content of the register of the output resolution 302 is 320
Since it is × 240, the scaling unit 63 reduces the size to 横 in the horizontal direction. It is not enlarged or reduced in the vertical direction. Further, since the contents of the register of the color format 303 are RGB8, the color conversion unit 62 converts the data in the YUV format into the RGB format expressed by 8 bits for each of the R, G, and B components. Then, the DMA transfer control unit 61 transfers the scaled and color-converted even field data to the area 3 indicated by the contents of the register of the transfer destination address 304.

Referring to the compressed moving image 330, the compressed moving image transmitted from the moving image compression section 52 is transferred to the area 1 indicated by the contents of the register of the transfer destination address 304.

As described above, the image capturing device 12
A moving image input from a video camera or VTR is divided into odd field data and even field data,
The data can be transferred to different devices and areas in the information processing device. At the same time, data obtained by compressing the input moving image can be transferred to a different device or area in the information processing device. Furthermore, the odd field data and the even field data can be transferred after being converted into different sizes and color formats, respectively. Further, depending on the set value of the register of the transfer destination address 304, the odd field data and the even field data can be transferred to the same device or area. In this case, the input moving image is recorded or displayed as it is. Will be.

Next, FIG. 2 shows a functional block diagram of the image recording / reproducing apparatus of the first embodiment.

In FIG. 2, reference numeral 101 denotes control means for controlling each functional block in the image recording / reproducing apparatus of the first embodiment, 102 denotes non-compressed image analyzing means having a function of analyzing non-compressed images, Reference numeral 103 denotes a correspondence information generation unit having a function of generating information for associating an uncompressed image with a compressed image. Reference numeral 104 denotes a compressed image reproduction apparatus having a function of reproducing and displaying a compressed moving image. This is realized by the CPU 1 executing a program stored in the main memory 2 or the auxiliary storage device 3.

Next, the operation of the image storage / playback apparatus of the present invention will be described with reference to the drawings.

Hereinafter, MPEG will be described as an example of a compression technique capable of reproducing at a high compression rate and high image quality, and scene changes will be described as information extracted from a digitized moving image. Absent.

FIG. 3 is a flowchart showing the processing contents of the control means 101. A program for realizing the present process is stored in the main memory 2 or the auxiliary storage device 3, and is triggered by a certain event, for example, an instruction from a user input using the input device 4 by the CPU 1, and the like. Be executed.

As shown in FIG. 3, the control means 101 first starts capturing a moving image (step 121).
Specifically, a program for driving the image capturing device 12 is executed, a value set by a user via the input device 4 or the like is set in a register, or a work area is secured in the main memory 2. And preparing for acquiring a moving image. Also, as an example to be described, the set values of the registers are as shown in FIG. 17, and accordingly, each data is transferred as shown in FIG. That is, the work area on the main memory 2 includes the area 1 and the area 2.

Next, the control means 101 controls the image input device 6
, And digitized by the image capturing device 12 to obtain a non-compressed image and store it in the area 2 (step 122). At this time, the data stored in the area 2 is odd field data, and is automatically DMA-transferred by the image capturing device 12. Further, at the same time as the transfer of the odd-numbered field data, the moving image input from the image input device 6 and subjected to the MPEG compression by the image capturing device 12 is transferred to the area 1 and the even-numbered field data is transferred to the area 3.

Subsequently, the non-compressed image analysis means 102 is activated to detect whether or not the scene has changed (step 1).
23). If the capturing of the moving image is continued, steps 122 and 123 are repeatedly executed (step 124). Details of the processing content of the uncompressed image analysis means 102 will be described later.

In step 124, if the capturing of the moving image has been completed, for example, by an instruction from the user, the moving image is input from the image input device 6 and the image capturing device 1
The moving image digitized in step 2 and MPEG-compressed (stored in the area 1 on the main memory 2) is stored in the auxiliary storage device 3 (step 125). At this time, the compression performed in the image capturing device 12 is performed in step 12.
Since the compression of the non-compressed image is performed simultaneously while the processing from step 2 to step 124, that is, the analysis of the non-compressed image, is performed, the processing speed of the entire control unit 101 does not decrease. Further, instead of compressing the uncompressed moving image captured in step 122, the moving image input from the image input device 6 is compressed (this compression processing is performed during the analysis processing of the uncompressed image). For,
This is different from the above-described related art in which an uncompressed image is input and then compressed.

Then, the control means 101 activates the correspondence information generation means 103 to generate information for associating the uncompressed image at the time when the scene has changed with the image at the time in the compressed moving image (step). 126). Details of the processing content of the correspondence information generating means 103 will be described later.

Finally, the compressed image reproducing apparatus 104 is started, and the compressed moving image is reproduced and displayed from the time pointed by the user, for example (step 127).
If the process of No. 1 is continued, the process returns to Step 121 and repeats the process (Step 128). In step 128, for example, when there is a termination instruction or the like from the user, the processing of the control unit 101 is terminated. Details of the processing contents of the compressed image reproducing device 104 will be described later.

FIG. 4 is a flowchart showing the processing contents of the uncompressed image analysis means 102. A program for realizing this processing is stored in the main storage 2 or the auxiliary storage device 3, and the program is executed by the CPU 1. FIG.
As shown in (2), the non-compressed image analysis unit 102 determines whether the content of the uncompressed image stored in the area 2 in step 122 of the control unit 101 and the repetition processing from step 122 to step 124 before the current processing. The contents of the uncompressed image stored in the area 2 are compared (step 131). At this time, the comparison is performed by comparing the two non-images on a pixel-by-pixel basis, calculating the difference between the two non-images, and calculating the sum of the differences for all the pixels, as in the above-described related art. Then, it is determined whether the scene has changed (step 132). At this time, if the sum of the differences is larger than a predetermined threshold, it can be determined that the scene has changed.

If it is determined in step 132 that the scene has changed, the time of the uncompressed image in which the scene has changed is obtained from the start of moving image capture (step 133), and the time is stored in the work area. (Step 134), and the process ends. At this time, the time from the start of capturing the moving image can be obtained as follows. That is, if the program for driving the above-described image capturing device 12 has a function of returning the number of images captured from the start of moving image capturing (including the number of images that could not be captured due to time problems), To get.
The moving image input from the image input device 6 is NTS
If the format is C, the frame rate is 29.
Since the number of images is 97 frames / sec, the quotient obtained by dividing the number of images by 30 is the time. If the above-described program for driving the image capturing device 12 does not have a function of returning the number of images captured from the start of moving image capturing, 1 / 29.97 seconds (moving image (In the case of the NTSC format), an interval timer may be started to count the number of captured images.

If it is not determined in step 132 that the scene has changed, the uncompressed image stored in the area 2 before the current processing is deleted from the area 2 (step 135), and the processing ends. A specific example in which the scene changes will be described later.

FIG. 5 is a flowchart showing the processing contents of the correspondence information generating means 103. A program for realizing this processing is stored in the main storage 2 or the auxiliary storage device 3, and the program is executed by the CPUI.

As shown in FIG. 5, the correspondence information generating means 10
In step 3, it is first determined whether or not a change in the scene has occurred during the capture of a series of moving images (step 141). If not, the process ends. The presence or absence of a scene change is determined by providing a counter in the processing of the uncompressed image analysis means 102 and incrementing the counter when it is determined in step 132 by the uncompressed image analysis means 102 that the scene has changed. Then, by checking whether or not the counter is 1 or more, it can be determined whether or not a scene change exists.

If it is determined in step 141 that a scene change exists, the non-compressed image analyzing means 1
02, only one time stored in step 134 is obtained from the work area (step 14).
2) In step 125, an image (position) at the same time as the time in the MPEG compressed moving image stored in the auxiliary storage device 3 is calculated (step 143). The calculation method at this time will be described with reference to FIG.

FIG. 6A shows the control means 101 as an example.
It is assumed that a part of the uncompressed moving image captured in step 122 is arranged in chronological order, and that time progresses from left to right on the page. That is,
Among the uncompressed images A1 to A9, A1 is the image that has been captured earliest in time. Also, A1 to A4 indicate information that the object a is moving, and can be said to be the same scene. However, A4 to A5 are the objects a
Disappears from the image, and the object b newly appears in the image of A5. This can be said to be a change in the scene. Similarly, A6 and A
7 changes the scene. That is, in step 132 in the non-compressed image analysis means 102, it is determined that the scene has changed during the analysis of A5 and A7.

FIG. 6B shows a part of the MPEG compressed moving image taken in step 125 in the control means 101 arranged in chronological order (original screen order). Is going to progress.
That is, among the compressed images B1 to P2, B1 is the image that is fetched earliest in time and is MPEG-encoded. Further, A1 and B1, A2 and B2, A3 and 11, A
4 and B3, A5 and B4, A6 and P1, A7 and B5, A8
And B6, A9 and P2 are images that match temporally. Since the uncompressed image and the compressed image are based on the same image input from the image input device 6, for example, A1
And the content of the image when B1 is decoded matches. Here, I, P, and B represent I picture, P picture, and B picture in MPEG, respectively. The details of the actual encoding method are described in "Point Illustrated Latest MPEG Textbook", P89-P165, edited by Multimedia Communications Research Group, ASCII Publishing Bureau.

FIG. 6C shows a part of the MPEG compressed moving image taken in step 125 in the control means 101 arranged in the order (bit stream order) actually stored in the auxiliary storage device 3. is there. FIG.
The same symbols in FIG. 6B and FIG. 6C indicate the same contents. Accordingly, for example, the first B1 in FIG. 6B and the second B1 in FIG. 6C have the same data. 11 is G
Assume the beginning of the OP.

Now, assuming that the time obtained in step 142 is the time when the non-compressed image A5 is taken (this is referred to as T1), the T1 in the MPEG compressed moving image
Since the image at the same time is B4, the position of B4 is calculated in step 143. The calculation method is described below.

Each GOP is included in the MPEG bit stream.
At the beginning of the GOP, the header information includes the time (referred to as TC) from the beginning of the bit stream of the leading image of each GOP. Therefore,
By examining the TC of each GOP, the GOP including T1 (this is referred to as G1) can be specified.
That is, the time of B1 in the MPEG bit stream (G1) in FIG. 6C is TC. Also, the header information includes a frame rate of a moving image (this is referred to as PR). Further, header information is also stored in each image, and the header information includes a GO that includes each image.
P (Group Of Picture: structure for random access to an MPEG bit stream) includes a frame number from the head (this is TR). Therefore, PR (PICTU
RE RATE: Represents the display cycle of the image of the sequence layer) and T
R (TEMPORAL REFERENCE: N of pictures consistent in the picture layer)
The result of multiplying by 1024 (the remainder of 1024 reset at the beginning of the GOP) is the time from the beginning of G1 (this is T2). Then, it can be calculated by searching for an image (B4) where TC + T2 = T1. Although the above description has been made with respect to video data, the same can be calculated for audio.

Further, depending on the capability of the compressed image reproducing apparatus 104 described later, reproduction in the middle of a GOP or from a B picture is not possible. Therefore, instead of B4, B1 or 11 at the head of the GOP, or It is also conceivable to use P1 or the like near B4.

Returning to the description of FIG. 5, subsequently, the correspondence information generating means 103 creates the correspondence table 200 shown in FIG. 7 from the various information calculated in step 143 (step 144). If the correspondence table 200 has already been created, an entry is added to the correspondence table 200.

FIG. 7 shows the contents of the correspondence table 200. The correspondence table 200 associates an uncompressed image with a compressed image, and is stored in the main storage 2 or the auxiliary storage device 3. Further, the header information stored at the head of each GOP has an area for storing free information as a user data area, and the correspondence table 200 may be stored in the area.

The correspondence table 200 has items of an ID 210, a pointer 220 to an uncompressed image, a compressed file name 230, a time code 240, and an index 250. For example, for an image immediately after or near a scene change, , And a set of data sets corresponding to the above items. When the correspondence table 200 is stored in the user data area, the correspondence table 200
May be composed of at least a pointer 220 to an uncompressed image and an index 250.

In the ID 210, an identifier assigned to each scene change is set, and the identifier is numerical data uniquely assigned in the present image recording / reproducing apparatus. The non-compressed image pointer 220 stores the non-compressed image stored in the main memory 2 (step 122 in the control unit 101).
Is set. The content of the pointer 220 to the uncompressed image is
Anything can be used as long as a change in the scene can be specified, such as a comment input by the user. In step 125 of the control means 101, the compressed file name 230
The file name of the compressed moving image stored in the auxiliary storage device 3 is set. The time code 240 includes the GOP included in the header information of the GOP including the image in which the scene has changed.
The time from the head of the bit stream of the head image of is set. This corresponds to the TC described above. The index 250 includes the GO of the image in which the scene has changed.
An index (frame number) in P is set (the index starts from 0).

For example, in the example shown in FIG.
The correspondence table 200 ′ shown in FIG. FIG.
Images (A5) and (A) in FIG.
7 are data sets 301 and 302, respectively. In data set 301, pointer 2 to the uncompressed image
The set value of 20 is the address of the uncompressed image A5 stored in the main memory 2 on the main memory 2, and the set value of the pointer 220 to the uncompressed image in the data set 302 is stored in the main memory 2. This is the address on the main memory 2 of the uncompressed image A7.

Returning to the description of FIG. 5, finally, if there is another scene change, the correspondence information generation means 103 returns to step 142 and repeats the processing (step 1).
45). If there is no other scene change, the process ends. Whether there are other scene changes,
What is necessary is just to check the above-mentioned counter.

FIG. 9 is a flowchart showing the processing contents of the compressed image reproducing apparatus 104. A program for realizing this processing is stored in the main storage 2 or the auxiliary storage device 3, and the program is executed by the CPU 1.

[0091] As shown in FIG.
4 first displays various information on the display device 5 in a list according to the contents of the correspondence table 200 generated by the correspondence information generating means 103 (step 151). At this time, the content of the ID 210 in the correspondence table 200 and the uncompressed image indicated by the pointer 220 to the uncompressed image are displayed. Also, the compressed file name 230 in the correspondence table 200 may be displayed together. For example, step 15
In FIG. 19, an example displayed on the display device 5 is shown in FIG.

In FIG. 19, reference numeral 400 denotes a display screen of the display device 5, 410 denotes a window for displaying the contents of the correspondence table 200, and 410a to 410i denote main memories 2 indicated by a pointer 220 to an uncompressed image in the correspondence table 200. Is an uncompressed image stored in the. In this case, the correspondence table 200 has at least nine entries.

Returning to FIG. 9, the compressed image reproducing device 104
It waits for an instruction from the user (step 152), and waits for an instruction from the user (step 153). At this time, if there is an instruction from the user (in step 151, an instruction to select one uncompressed image from the uncompressed images (410a to 410i) displayed in a list), the instruction corresponds to the designated uncompressed image. The position (reproduction position) in the compressed moving image can be specified (step 154). This process
It can be performed as follows.

First, the correspondence table 200 is searched using the designated ID of the uncompressed image (the content of the ID 210 in the correspondence table 200) as a key. As a result, the I
A data set with D can be found. Then, from the data set, the contents of the compressed file name 230, the contents of the time code 240, and the index 250
The playback position can be identified by extracting the contents of

Next, the compressed image reproducing device 104 reproduces the compressed moving image as the content of the compressed file name 230 from the reproduction position and displays it on the display device 5 (step 155). Playback of the compressed video after the playback position is determined,
Since the display method on the display device 5 is already known, the detailed description is omitted. For example, FIG. 20 shows an example in which the information is displayed on the display device 5 in step 155.

In FIG. 20, reference numeral 420 denotes a window for reproducing and displaying a compressed moving image as the content of the compressed file name 230 from the reproduction position.

Finally, if the processing of the compressed image reproducing device 104 is continued, the process returns to step 151 and repeats the process (step 156). In step 156, for example, when there is a termination instruction or the like from the user, the processing of the compressed image reproducing device 104 is terminated.

As described above, according to the present invention, a scene change or the like can be detected while recording a compressed moving image, and it can be associated with a scene change point in the compressed moving image. It is possible to provide an image recording / reproducing apparatus which can be performed in a short time.

Further, according to the present invention, an uncompressed moving image and a compressed moving image can be simultaneously captured (recorded) in the information processing apparatus. An arbitrary image in the compressed moving image corresponding to an arbitrary image in the image can be specified, and by correlating these two images, cue reproduction of the compressed moving image from a position designated by a user or the like And an image recording / reproducing apparatus capable of easily performing the above.

Further, according to the present invention, it is possible to provide an image recording / reproducing apparatus which takes in a compressed image preferentially when an uncompressed moving image and a compressed moving image are simultaneously taken into an information processing apparatus.

According to the present invention, information related to a compressed moving image is created from a recorded or recorded uncompressed moving image, and the compressed moving image is reproduced based on the related information.
An image recording / reproducing system such as a moving image album can be provided.

Further, according to the present invention, when an uncompressed moving image is taken into an information processing apparatus, it can be taken in as odd field data and even field data in an interlaced signal, and further, odd field data and even field data can be taken. Data and the same or different size and color format can be transferred to the same or different areas and devices. For example, while a moving image to be input is monitored on a display device of the information processing device, a scene change can be performed. Can be provided.

In the present embodiment, a change in a scene is taken as an example of information to be extracted from an uncompressed moving image, but other information may be used. For example, if the user specifies image information to be detected in advance and causes the non-compressed image analysis means 102 to recognize an image that matches the image information, a simple moving image search system can be constructed.

In the above description, the image capturing device 12 and the compressed image reproducing device 9 are configured as different devices. However, the compressed image reproducing device 9 is configured as the image capturing and reproducing device 13 including the image capturing device 12. Is also good.
FIG. 21 shows a block configuration of the image capturing / reproducing device 13 at this time.

As shown in FIG. 21, the image capturing / reproducing apparatus 13 includes a moving image input interface unit 50, a frame memory 51, a moving image compression / expansion unit 54, and a video decoder encoder 55.

The video decoder encoder 55 is connected to the image input device 6, and digitizes and outputs an analog moving image input from the image input device 6. For example, if the analog moving image input from the image input device 6 is an NTSC format signal, the video decoder encoder 55 can be realized as an NTSC decoder. In this case, the odd field signal and the even field signal in the interlaced signal of the NTSC format are digitized and output in time series. The output moving image is input to the moving image compression / decompression unit 54 and the moving image input interface unit 50 at the same time.

Further, the video decoder encoder 55 is connected to the image output device 14 realized by a TV monitor, a VTR, or the like.
The image output device 14 converts the moving image expanded by the image compression / expansion unit 54 and the data held in the main memory 2 or the auxiliary storage device 3 or the display device 5 in the information processing device.
Output to At this time, if the image output device 14 handles an NTSC format signal, the data to be output to the image output device 14 is converted into an NTSC format signal. Further, the video decoder encoder 55 may be configured to be divided into a video decoder and a video encoder.

The image compression / expansion unit 54 compresses the digitized moving image output from the video decoder encoder 55 by using a compression technique such as MPEG, and outputs the compressed moving image to the moving image input interface unit 50. Furthermore, the compressed moving image transmitted through the moving image input interface unit 50 is expanded,
5 and / or video input interface 5
0 is output to the video signal input / output unit 64 (see FIG. 16). The moving image output to the video signal input / output unit 64 of the moving image input interface unit 50 is DMA-transferred to the main storage 2, the auxiliary storage device 3, or the display device 5 as described above.

The frame memory 51 and the moving image input interface unit 50 are the same as those shown in FIG.

Next, a second embodiment will be described with reference to the drawings.

FIG. 1 is a hardware configuration diagram of an information processing apparatus such as a personal computer to which the image recording / reproducing apparatus of the second embodiment can be applied.

As shown in FIG. 1, the apparatus comprises a CPU 1
, A main memory 2, an auxiliary storage device 3, an input device 4, a display device 5, an image input device 6, an uncompressed image capturing device 7, a compressed image capturing device 8, a compressed image reproducing device 9, Is configured. The components other than the image input device 6 are connected by a bus 10 so that necessary information can be transmitted between the components.

Further, the image input device 6 is connected to the non-compressed image capturing device 7 and the compressed image capturing device 8, and the same image capturing device 7 is used for the non-compressed image capturing device 7 and the compressed image capturing device 8. It is configured so that information can be transmitted simultaneously.

The functional block diagram of the image recording / reproducing apparatus of the second embodiment is the same as the functional block diagram of the first embodiment shown in FIG.

The non-compressed moving image is transferred to the non-compressed image capturing device 7.
The compressed moving image is captured from the
However, since the non-compressed image capturing device 7 and the compressed image capturing device 8 are both connected to the image input device 6, the same (video) information is input.
The processing of the second embodiment is not essentially different from the processing of the first embodiment.

If the non-compressed image capturing device 7 is configured such that the image compressing section 52 is removed from the configuration of the image capturing device 12, a function equivalent to that of the first embodiment can be realized. Further, since the configuration is separated from the compressed image capturing device 8, an image recording / reproducing device having a relatively high degree of freedom in system construction can be provided.

Next, a third embodiment will be described with reference to the drawings.

In the first or second embodiment, the non-compressed image and the compressed image are taken in real time and simultaneously, but only the non-compressed image is taken in real time and used for detection while detecting a change in the scene. A configuration in which an uncompressed image is compressed may be adopted. In this case, the hardware configuration of the information processing apparatus to which the image storage device can be applied is shown in FIG.
2 and the control means 101 may be changed (control means 101 ') as shown in FIG.

In FIG. 12, components other than the image compression device 11 are the same as those shown in FIG. The image compression apparatus converts an uncompressed moving image passed from the CPU 1 into, for example, M
This is a device for performing PEG compression and storing it in the main storage 2 or the auxiliary storage device 3.

As shown in FIG. 13, the control means 101 '
First, capture of a moving image is started (step 16).
1). Specifically, each program for driving the non-compressed image capturing device 7 is executed, and preparations for acquiring a moving image, such as securing a work area on the main memory 2, are performed.

Next, the control means 101 'obtains an uncompressed image input from the image input device 6 and digitized by the uncompressed image capturing device 7 and stores it in the work area (step 162). Subsequently, the non-compressed image analysis means 102 is activated to detect whether or not the scene has changed (step 163). Further, the non-compressed image stored in the work area is compressed using the image compression device 11 (step 164). If the capturing of the moving image is continued, steps 162 and 164 are repeatedly executed (step 165).

In step 165, if the capturing of the moving image has been completed by, for example, an instruction from the user or the like, the moving image compressed by the MPEG in the image compression device 11 is obtained, and the work area or the auxiliary storage device is obtained. 3 (step 166).

Then, the control means 101 'activates the correspondence information generation means 103 to generate information for associating the uncompressed image at the time when the scene has changed with the image at the time in the compressed moving image ( Step 167).

Finally, the compressed image reproducing device 104 is started up, and the compressed moving image is reproduced and displayed from the time pointed by the user, for example (step 168).
If the processing of 1 'is continued, the flow returns to step 161 to repeat the processing (step 169). Step 169
For example, when there is a termination instruction or the like from the user, the processing of the control unit 101 'is terminated.

As described above, according to the third embodiment, for example, the image input device 6 is
Is divided into odd field data and even field data, and the odd field data is
The data is transferred to the main memory 2 in a V format color format, the even field data is converted into a color format that can be displayed on the display device 5 and transferred to the display device 5, and the YUV format odd field data is further transferred to the image compression device 11. , And can be compressed, a relatively inexpensive image recording / reproducing apparatus can be provided.

The conventional technology can be applied to the image compression device 11, and the conventional image compression device 11 usually requires input of data in the YUV format. If the image compression device 11 is realized by software, the function of transferring the data in the YUV color format to the main memory 2 while displaying the uncompressed moving image on the display device 5 is very effective.

[0127]

According to the present invention, an uncompressed moving image and a compressed moving image can be simultaneously captured (recorded) in an information processing apparatus. An arbitrary image in the compressed moving image corresponding to an arbitrary image in the moving image can be specified. Further, by correlating these two images, cueing of the compressed moving image from a position designated by a user or the like can be performed. It is possible to provide an image recording / reproducing apparatus that can easily reproduce.

Further, the moving image input from the image input device is converted into a non-compressed moving image and a moving image compressed by using a compression technique capable of reproducing at a relatively high compression rate and high image quality. In the case where the compressed moving image is taken into the information processing device simultaneously and simultaneously, an image recording / reproducing device that takes in the compressed moving image preferentially can be provided.

Further, when the uncompressed moving image is taken into the information processing device, the odd field data and the even field data in the interlace signal input from the image input device are converted into the same or different size and color format. And transferring the image to an equivalent or different area or device, thereby simultaneously recording the moving image while monitoring the moving image input from the image input device on the display device of the information processing device. An image recording / reproducing device can be provided.

[Brief description of the drawings]

FIG. 1 is a hardware configuration diagram of an image recording / reproducing apparatus according to a second embodiment of the present invention.

FIG. 2 is a functional block diagram of the image recording / reproducing apparatus according to the first embodiment of the present invention.

FIG. 3 is a processing flowchart of a control unit according to the first embodiment of the present invention.

FIG. 4 is a processing flowchart of an uncompressed image analysis unit according to the first embodiment of the present invention.

FIG. 5 is a processing flowchart of a correspondence information generating unit according to the first embodiment of the present invention.

FIG. 6 is an explanatory diagram showing a method for generating correspondence information according to the first embodiment of the present invention.

FIG. 7 is an explanatory diagram showing a data configuration of a correspondence table according to the first embodiment of the present invention.

FIG. 8 is an explanatory diagram showing a data configuration of a correspondence table according to the first embodiment of the present invention.

FIG. 9 is a processing flowchart of the compressed image reproducing apparatus according to the first embodiment of the present invention.

FIG. 10 is a configuration diagram of an image recording / reproducing apparatus according to the related art.

FIG. 11 is a processing flowchart of an image recording / reproducing apparatus according to a conventional technique.

FIG. 12 is a hardware configuration diagram of an image recording / reproducing apparatus according to a third embodiment of the present invention.

FIG. 13 is a processing flowchart of a control unit according to the third embodiment of the present invention.

FIG. 14 is a hardware configuration diagram of the image recording / reproducing device according to the first embodiment of the present invention.

FIG. 15 is a hardware configuration diagram of the image capturing device according to the first embodiment of the present invention.

FIG. 16 is a hardware configuration diagram of a moving image input interface unit according to the first embodiment of the present invention.

FIG. 17 is a configuration diagram of a register of the image capturing device according to the first embodiment of the present invention.

FIG. 18 is an explanatory diagram of an operation of the image capturing device according to the first embodiment of the present invention.

FIG. 19 is a diagram showing a screen configuration at the time of reproducing a compressed moving image according to the first embodiment of the present invention.

FIG. 20 is a diagram illustrating a screen configuration when a compressed moving image is reproduced according to the first embodiment of the present invention.

FIG. 21 is a hardware configuration diagram of the image capturing device according to the first embodiment of the present invention.

FIG. 22 is a configuration diagram of an image input device incorporating an image capturing device according to the first embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... CPU, 2 ... Main memory, 3 ... Auxiliary storage device, 4 ... Input device, 5 ... Display device, 6 ... Image input device, 9 ... Compressed image reproducing device, 10 ... Bus, 12 ... Image capturing device.

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[Procedure amendment]

[Submission date] October 26, 2001 (2001.10.
26)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims

[Correction method] Change

[Correction contents]

[Claims]

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) G11B 27/34 H04N 11/04 Z 5D077 H04N 7/24 5/92 H 5D110 9/804 7/13 Z 9 / 808 9/80 B 11/04 (72) Inventor Nobukazu Kondo 1053, Kamigo, Ebina-shi, Kanagawa Prefecture, Room 205, G Building (72) Inventor Kazutoshi Kato 397, Imazato, Imagori, Ebina-shi, Kanagawa Prefecture, Room 202 (72) ) Inventor Kazuaki Tanaka 12-20 No. Sugita Tsubo, Isogo-ku, Yokohama-shi, Kanagawa Prefecture (72) Inventor Yoshihiro Harada Room 587-6, No. 587-6, Shimoimaizumi, Ebina-shi, Kanagawa F-term (reference) 5C053 GA11 GB37 HA29 LA01 LA06 LA07 LA11 LA15 5C055 AA02 AA03 BA02 BA03 BA05 BA07 CA00 EA14 EA16 FA19 FA21 HA18 5C057 AA10 BA01 DA03 EA02 EM14 GF01 GM08 5C059 LA01 LA05 NN43 PP04 PP14 RB02 RB14 SS11 TA75 UA02 UA05 UA30 5D0 44 AB07 DE03 DE12 DE15 DE72 DE96 FG23 GK08 HL04 HL06 5D077 BA09 BA11 HA07 HD02 HD04 5D110 AA29 DA19 EA08 FA02

Claims (13)

[Claims] An image capturing apparatus mounted on an image recording / reproducing apparatus for recording a moving image having a main memory and a display device, inputs a digitized moving image, and converts the input moving image into a compressed moving image. A moving image compression unit for compressing the moving image, and a moving image input interface unit for transferring the digitized moving image to the main storage and the display device, and simultaneously transferring the compressed moving image output from the moving image compression unit to the main storage An image capturing device comprising: 2. The image capturing device according to claim 1, further comprising a video decoder for inputting a moving image of an analog signal and digitizing the input moving image. 3. The image capturing device according to claim 2, wherein the moving image input interface unit transfers the compressed moving image preferentially as compared with the digitized moving image. . 4. The image capturing device according to claim 3, wherein the moving image input interface unit separates the digitized moving image into two field signals in an interlace signal, and the separated two field signals. Wherein the image data is separately transferred to the main memory and the display device. 5. The image capturing device according to claim 4, wherein said moving image input interface unit has a function of transferring said two field signals at different resolutions or color formats. 6. The image capturing device according to claim 5, wherein a moving image digitized by said video decoder is input via said moving image input interface, and data of at least one screen of said input moving image is inputted. And a video compression unit for compressing a video image digitized by the video decoder, wherein the video input interface unit forms a digitized video image output from the video decoder. A video signal input / output unit for chronologically inputting odd and even fields to be output to the frame memory, and sequentially taking out data of the odd and even fields from the frame memory and scaling the data to a predetermined size And a scaled unit output from the scaling unit. A color conversion unit that converts data of a moving image into a predetermined color format, and a moving image data that is color-converted by the color conversion unit and moving image data compressed by the moving image compression unit. An image having a DMA transfer control unit for performing a DMA transfer with priority given to the data, and a bus input / output unit for performing a data transfer between the bus to which the main memory is connected and the DMA transfer control unit. Capture device. 7. A main memory, a display device, a moving image compression section for compressing a digitized moving image into a compressed moving image, and simultaneously transferring the digitized moving image to the main storage and the display device. An image capturing device having a moving image input interface unit for transferring a compressed moving image output from the moving image compression unit to the main storage, and the moving image input interface unit interlaces the digitized moving image. Splitting the signal into two field signals, transferring one of the field signals to the main memory,
Simultaneously transferring the other field signal to the display device,
The compressed moving image is transferred to the main memory, the display device displays a moving image according to a field signal transferred from the moving image input interface unit, and the main memory stores the moving image at the same time as the display device displays the moving image. An image recording / reproducing apparatus characterized by storing a field signal transferred from the moving image input interface unit. 8. The image storage / reproduction device according to claim 7, wherein said image capturing device has a video decoder for inputting a moving image of an analog signal and digitizing the input moving image. Image storage and playback device. 9. The image recording / reproducing apparatus according to claim 8, wherein said moving image input interface unit transfers said two field signals at different resolutions or color formats. 10. The image recording / reproducing apparatus according to claim 9, wherein the moving image input interface unit transfers the compressed moving image with higher priority than the digitized moving image. Playback device. 11. The image storage / playback apparatus according to claim 10, wherein a moving image digitized by said video decoder is input through said moving image input interface,
A frame memory for holding data of at least one screen of the input moving image, and an image compression unit for compressing the moving image digitized by the video decoder, wherein the moving image input interface unit includes the video A video signal input / output unit for inputting the odd and even fields constituting the digitized moving image output from the decoder in a time-series manner and outputting to the frame memory; and outputting the odd and even fields from the frame memory. A scaling unit for sequentially taking out data and scaling to a predetermined size; a color conversion unit for converting data of the scaled moving image output from the scaling unit to a predetermined color format; Moving image data and the moving image data compressed by the moving image compression unit. A DMA transfer control unit for performing DMA transfer with priority given to the data of the compressed moving image, a bus input / output unit for performing data transfer between the bus to which the main memory is connected and the DMA transfer control unit. An image recording / reproducing apparatus comprising: 12. The image storage / reproducing apparatus according to claim 10, wherein data of a moving image digitized by said video decoder is input via said moving image input interface section, and said input uncompressed moving image is input. Analyzing and, as a result of the analysis, when there is a scene change in the input moving image, obtain the time from the start of moving image capture when the scene change occurs in the uncompressed image; From the data of the moving image compressed by the compression unit, specify the data of the moving image corresponding to the changed time of the scene obtained from the uncompressed image, and specify the data of the specified moving image and the time at which the scene changes. An image storage / reproduction apparatus, comprising: correspondence information generating means for generating information indicating a correspondence relationship with an uncompressed image. 13. An image recording / reproducing apparatus for recording a moving image, comprising a main memory and / or a display device, for inputting an analog moving image, and outputting an image for displaying an analog moving image. A video decoder encoder that digitizes a moving image input from the image input device, and further converts data stored in the main memory or data displayed on the display device into an analog signal; A moving image compression / expansion unit for compressing the compressed moving image into a compressed moving image and further expanding the compressed moving image; and displaying the digitized moving image and the compressed moving image in the main storage and / or the display. A video input interface that simultaneously transfers data to the device and further takes in data stored in the main memory or data displayed on the display device. If the captured data is a compressed moving image, the video data is decompressed by the moving image compression / decompression unit, converted into an analog signal by the video decoder encoder, displayed on the image output device, and the captured data is uncompressed. An image recording / reproducing apparatus having a function of converting a compressed moving image into an analog signal by the video decoder encoder and displaying the analog signal on the image output device.