JPH0775050A - Still picture recording and reproducing device - Google Patents

Abstract

PURPOSE:To shorten the number of times and the time of reproducing operations, to easily retrieve desired pictures and to promptly perform selection and reproduction by recording picture information in a part for recording information relating to recorded pictures in a recording medium in the case of recording the plural sets of related still pictures in a still picture recording and reproducing device for which the recording medium is a DAT tape. CONSTITUTION:In this still picture recording and reproducing device for which the recording medium is the DAT tape, in the case of recording the plural sets of the related still pictures by using the part for recording he information relating to the recorded pictures in the DAT tape, a program number 9 is recorded in the sub ID of still picture data to be recorded at first among the sets of the related still pictures and picture numbers are recorded in the sub data of the respective still picture data in the sets of the related still pictures to be recorded. At the time of the reproduction, when the program number 9 of the desired related still picture is inputted, the program number 9 is retrieved and only the set of the related still pictures is transferred to a picture memory part.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a still image recording / reproducing apparatus for recording a still image of a digitized video signal on a recording medium such as a magnetic tape or an optical disk and reproducing the recorded still image. Is.

[0002]

2. Description of the Related Art FIG. 16 is a system configuration diagram showing a conventional still image recording / reproducing apparatus and peripheral devices. In the figure, 1 is an image input device such as a still image camera, movie, laser disk, image scanner, etc., 2 is a still image recording / reproducing device, and 3 is a monitor for displaying a still image from the still image recording / reproducing device 2.

Next, the operation will be described. The still image recording / reproducing apparatus 2 converts the video signal input from the image input apparatus 1 into a digital video signal, records the digital video signalized still image on a recording medium such as a magnetic tape or an optical disc, and records it on the recording medium. Although it is a device that reproduces a recorded still image and outputs it as a video signal to the monitor 3,
Here, a case where the recording medium is a DAT tape will be described.

FIG. 17 is a block diagram showing the basic structure of a still picture recording / reproducing apparatus 2 for recording / reproducing a still picture converted into a digital picture signal. In the figure, 4 is an analog picture signal converted into a digital picture signal. A / D converter, 5 is an image memory unit for storing image data, 6 is a DAT deck for recording image data, 7 is a D / A converter for converting a digital video signal into an analog video signal, and 8 is a system control Is. FIG. 18 is a block diagram showing the internal configuration of the image memory unit 5, in which the arrows indicate the direction in which image data flows. Here, for the sake of simplicity, an image memory with a 4-frame memory configuration (image memory
I, image memory II, image memory III, image memory IV) will be described as an example.

Next, the operation during recording will be described. Figure 1
As shown in 7, an NTSC video signal with a sampling frequency of 14.3 MHz input from the image input device 1 is A / D
The converter 4 converts it into a digital video signal and transfers it to the image memory unit 5. The image data converted into a digital video signal is stored in the image memory I inside the image memory unit 5. The image data stored in the image memory I is transferred to the DAT deck 6 for reading the content and displaying it on the monitor 3 and recording it on the DAT tape at the same time. The sampling frequency for recording and reproducing the DAT tape is 48 KHz (standard mode). ) And the rate is lower than that of the NTSC video signal, the transfer rate is converted inside the image memory unit 5 and then transferred to the DAT deck 6. The transferred image data is a subcode signal (start ID,
It is recorded together with the program number). The subcode signal will be described later. The system control 8 controls all of the DAT deck 6 and the image memory unit 5 in operation.

The DAT tape format will be briefly described below. Regarding DAT, for example, illustrated DA
The T-book is described in detail in Heitaro Nakajima's book (Ohmsha Co., Ltd.), so I won't go into details, but regarding the DAT tape format, see Chapter 6 P119-P131 and DA.
For recording and reproducing operations of T-tape, refer to Chapter 4 P61-
It is described in P64. The present invention relates to the sub-data area of the DAT tape, so a brief description thereof will be given.

FIG. 19 shows the format of the sub ID portion in one block in the sub data area in the DAT tape format. Sub ID in the sub data area
A subcode signal is recorded in SW1 and SW2 and subdata therein. The sub-ID portion has 32 bits including the sync signal and the check parity, and the data required for the high speed search is recorded in 16 bits of SW1 and SW2 among them.
Among them, the control ID is recorded with a start ID indicating the start portion of a frequently used program, and the program numbers, which are song numbers, are recorded in SW1 and SW2 of odd-numbered address blocks.

Although the operation at the time of recording has been briefly described above, the recording procedure will be described with reference to the flowcharts shown in FIGS. 17 and 21 when recording one set of four images as shown in FIG. Further, FIG. 20 shows one whole image and three enlarged images in which a part of the whole image is enlarged. Hereinafter, the operation of the present apparatus will be described as an example.
The recording / reproduction of one set of four images and how it is recorded on the DAT tape will be described.

When the recording operation is started, the system control 8 sets the image memory I in the image memory unit 5 to the storage state and at the same time the reading state. When the entire image data is input to the image memory unit 5, the entire image data is stored in the image memory I inside the image memory unit 5, and at the same time, the entire image data stored in the image memory I is read out and displayed on the monitor 3. After confirming the whole image displayed on the monitor 3, a program number which is an image data number is input. When the program number is input, the system control 8 transfers the entire image data stored in the image memory I to the DAT deck 6, and the program number and the entire image data are recorded on the DAT tape. Similarly, the enlarged image I and its program number are recorded on the DAT tape, and this operation is repeated to record the enlarged images II and III and their program numbers on the DAT tape. Enlarged image in this case
The recording operation is ended when the image of III is displayed on the monitor 3 and no other image is input. The image data of one set of four images recorded in this manner has the arrangement shown in FIG. 22 on the DAT tape. Shaded area 9 in the figure
The numbers inside represent the program number which is the image data number, and the whole image is recorded in the program number 0001,
The program number 0002 records the enlarged image I, the program number 0003 records the enlarged image II, and the program number 0004 records the enlarged image III.

Next, the operation during reproduction will be described. As shown in FIG. 17, when the system control 8 sends a control signal to the DAT deck 6 by inputting the information of the still image to be reproduced (program number 9 etc.), the still image is recorded by the high speed search inside the DAT deck 6. Sometimes the sub code part recorded on the DAT tape (Start I
D, program number 9) is detected and the image data is DAT
The image is reproduced from the tape to the image memory unit 5. Image memory unit 5
The image data input to is converted into a sampling frequency of 14.3 MHz of the NTSC video signal system and stored in the image memory I in the image memory unit 5. Similarly, four frames of image data are stored in the image memories I to IV, one image data among them is output to the D / A converter 7, and the D / A converter 7 converts the input image data. It is converted into an analog video signal and displayed on the monitor 3. Incidentally, D / A
The image data output to the converter 7 may be any image data stored in the image memories I to IV. As with recording, the system control 8 controls all of the DAT deck 6 and the image memory unit 5 during these operations.

Next, with reference to the flow charts of FIGS. 17 and 23, the reproduction procedure of the DAT tape on which the image of 4 image 1 set data is recorded as shown in FIG. 22 will be described. Figure 2
FIG. 2 is a diagram showing an arrangement of each image data on the DAT tape in which the image data which is one set of four images in FIG. 20 is recorded. The write memory number in the flow chart is the image memory I for storing the image data reproduced from the DAT deck 6.
It is a number that specifies ~ IV. The read memory number is a number that designates the image memories I to IV in which the image data to be output as an analog video signal is stored. Hereinafter, the write memory number and the read memory number are used as the same as above.

First, the program number P, write memory number, and read memory number are input. These numbers are input to the system control 8, and the system control 8 causes the DAT deck 6 to start high-speed search.
Read the program number Q. Further, the image memory unit 5 is
The image memory specified by the write memory number is set in the storage state, and the image memory specified by the read memory number is set in the reading state. The system control 8 starts the search for the program number Q read by the DAT deck 6 by the high speed search, and reads the input program number P. The read program number Q and the input program number P are collated, and if they are different, the next program number Q is read, and if they match, the DAT deck 6 transfers the image data of the input program number P from the DAT tape. The image is reproduced in the image memory unit 5. The image data reproduced from the DAT deck 6 is stored in the image memory indicated by the write memory number, and the image memory indicated by the read memory number is read out. The read image data is output as an analog video signal and displayed on the monitor 3. This operation is repeatedly performed until all four images shown in FIG. 20 are stored in different image memories. At the time when the four images are stored, the image data read last is output as an analog video signal and the monitor is output. Project to 3. After that, when the read memory number of the image to be output out of the four images is input, the read memory number is changed, the image memory specified by the read memory number is read, and the contents of the image memory indicated by the read memory number are read out and monitored. Project to 3. This operation ends by executing an instruction other than reproduction.

[0013]

Since the conventional still image recording / reproducing apparatus 2 is configured as described above, when recording related images such as one set of four images shown in FIG.
Since the recording operation is performed not as a related image of one set of four images but as an unrelated image, a recording operation including four program number inputs is required.

Similarly, when reproducing related images such as a set of four images shown in FIG. 20, since the reproducing operation is performed as four unrelated images, the program number, the write memory number and the read memory number are input. The reproduction operation including is required four times.

Further, even after storing one set of related images of four images in the image memory unit 5, a desired image is selected from the four images and read from the image memory unit 5 at a maximum of four times for reproduction. There is a problem in that the number of images required is large and the time required to reproduce a desired image increases as the number of images in one set increases.

The present invention has been made in order to solve the above problems, and it is possible to collectively record and reproduce related images, shorten the number of recording / reproducing operations and recording / reproducing time, and facilitate retrieval of a desired image. It is an object of the present invention to provide a still image recording / reproducing device which can be quickly selected and reproduced.

[0017]

A still image recording / reproducing apparatus according to a first aspect of the present invention, when recording a plurality of sets of related still images, records a related still image in a portion of a recording medium for recording related information. An image number of each still image in the set of still images associated with the set number is recorded for each set, and the recorded set number and image number are searched.

In the still picture recording / reproducing apparatus according to the second aspect of the invention, when the recording medium is a DAT tape and a plurality of sets of related still images are recorded, the sub ID of the first still image data of the related still image set is recorded. The image number is recorded in the sub-data of each still image in the set of the program number and the associated still image.

In addition to the first aspect of the invention, the still image recording / reproducing apparatus according to the third aspect of the invention, when recording a plurality of related still image sets, designates an area in the still image to be recorded by the image position designation means. Then, the position coordinates of the designated area are recorded, and the desired position of the still image is designated by the image position designating means at the time of reproduction.

In addition to the third invention, the still image recording / reproducing apparatus according to the fourth invention records the discrimination number in the recording medium by the related image information storage means when recording a plurality of related still images, and relates at the time of reproduction. It is characterized in that the image information display circuit is configured to display related information regarding image data.

[0021]

With the still image recording / reproducing apparatus according to the first aspect of the present invention, when a plurality of sets of related still images are recorded, a set number and a set number of each related still image are associated with a portion of the recording medium where relevant information is recorded. Since the image number of each still image in the set of the recorded still images is recorded, it is possible to collectively reproduce the set of related still images by searching the recorded set number and the image number. .

The still picture recording / reproducing apparatus according to the second invention is
When the recording medium is DAT tape and a plurality of sets of related still images are recorded, each still image in the set of still images related to the program number in the sub ID of the first still image data of the set of related still images Since the image number is recorded in the sub data of, the desired related still image can be quickly retrieved from the DAT tape and efficiently stored in the image memory.

In the third invention, in addition to the first invention, when a plurality of sets of related still images are recorded, a certain area in the related still images to be recorded is designated by the image position designating means and designated. Record the location coordinates of the area. Further, at the time of reproduction, if the desired position of the still image is designated by the image position designating means, the designated related still image can be read out from the image memory.

In the fourth invention, in addition to the third invention, when the plurality of related still images are recorded, the identification number is recorded on the recording medium by the related image information storage means, and the image data is displayed by the related image information display circuit at the time of reproduction. Since the related information regarding is displayed, the image contents of a plurality of still images can be determined.

[0025]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be specifically described below with reference to the drawings showing the embodiments. Example 1. The basic configuration of the still image recording / reproducing apparatus 2 in the first embodiment is the same as the block diagram shown in FIG.
In this embodiment, image information regarding a recorded image is also recorded on the DAT tape which is a recording medium.

In the first embodiment, the recording operation will be described with reference to the flowcharts of FIGS. Figure 2
, N represents the enlarged image number, and M is the image memory unit 5.
An internal image memory number is shown, and K is the number of image memories in the image memory unit 5. The initial value is the enlarged image number N = 0,
Image memory number M = 1, image memory number K is now 4 images 1
Since it is a set, it will be 4. These are set inside the system control 8. The entire image input from the image input device 1 is stored in the image memory I inside the image memory unit 5, and at the same time, the contents of the image memory I are read out and displayed on the monitor 3. Next, the enlarged image number N and the image memory number M are respectively incremented to become the enlarged image number N = 1 and the image memory number M = 2, and the enlarged image I is stored in the image memory II and displayed on the monitor 3 at the same time. This operation is repeated as many times as the number of recorded images of the enlarged image. However, the maximum number is K-
It is 1. Further, for example, when storing one set of three images, the storage of the enlarged image is stopped at the stage of storing the enlarged image II in the image memory III. When all the image data are stored in the image memory unit 5, both the image memory number M and the image number J are set to 1.

Next, when the program number (group number) is input to the system control 8, the system control 8
Thus, the entire image data stored in the image memory I is read out, displayed on the monitor 3, and simultaneously transferred to the DAT deck 6. The transferred whole image data is recorded on the DAT tape together with the program number and the image number J = 1. Next, the enlarged image number N and the image memory number M are respectively incremented, and the enlarged image stored in the image memory M = 2.
II data is read and displayed on the monitor 3, and at the same time DAT
Transfer to deck 6. The transferred enlarged image II data is recorded on the DAT tape together with the image number J = 2. This operation is repeated until the image memory number M reaches the enlarged image number N + 1. In this case, after the enlarged image III data stored in the image memory number M = 4 is recorded on the DAT tape, the enlarged image III is used as an analog video signal. Output and monitor 3
Recording ends with the image being displayed on.

The respective image data recorded in this way are arranged on the DAT tape as shown in FIG. The numbers in the shaded area 9 in the figure represent the program numbers, which are the image data numbers of one set of multiple images, and the numbers in parentheses of each image data are the images of one set of four images recorded in the sub data. It is an image number indicating the number of the image data in the data. Hereinafter, the program number and the image number will be used in agreement with the above. Program number 000
The image data of 1 set of 4 images is recorded in 1 and the image data of 1 set of 2 images is recorded in program number 0002.
In 03, one set of image data of three images is recorded. FIG. 3 shows the format of the sub data area on the DAT tape format, and the image number is recorded in the sub data of the image as shown in the figure.

Since the inside of the image memory 5 has a structure in which inputs and outputs are mutually connected between the image memories I to IV as shown in FIG. 18, the image memory I is stored even after the image data is stored.
The image data can be copied and exchanged between IV and IV, and the order of recording on the DAT tape can be changed.

Next, with reference to the flow chart of FIG. 4 in the first embodiment, the operation at the time of reproducing the DAT tape in which one set of four images is recorded as shown in FIG. 1 will be described. First, the program number P of the desired image is input. DAT by entering this number into the system control 8
Deck 6 starts a high speed search. The system control 8 starts the search for the program number Q read out by the DAT deck 6 by high-speed search, compares the read program number Q with the input program number P, and if the numbers do not match, the next program Read the number Q. This operation is performed until the program numbers P and Q match, and if they match, the DAT deck 6 reproduces the input image data of the program number P from the DAT tape to the image memory unit 5. The entire image data to be reproduced first is stored in the image memory I and, at the same time, read out and converted into an analog video signal by the D / A converter 7 and displayed on the monitor 3.

During this reproducing operation, the system control 8 always keeps the program number recorded on the DAT tape,
When the image number J is read, the entire image with the image number J = 1 is reproduced, and then the enlarged image I with the image number J = 2 is reproduced, the image number J changes from 1 to 2 and the image number J changes. The image memory in the image memory unit 5 is switched from I to II. Next, it is judged whether the program number 9 has changed, and if it does not change, this operation is repeated, and the image memories I to IV in the image memory unit 5 are sequentially switched to store the image data. When the program number 9 changes, it is determined that all the images of one set of four images have been written in the image memory unit 5, and the reproduction is ended. In this state, the last read image data is output and displayed on the monitor 3. As a result, the image data on the DAT tape in which one set of four images is recorded as shown in FIG. 1 has the entire image stored in the image memory I and the enlarged image I stored in the image memory II in the image memory unit 5.
The enlarged image II is stored in III and the enlarged image III is stored in the image memory IV. After that, if the read memory number of the desired image among the four images is input, the image memory designated by the read memory number is set in the read state, and the contents of the image memory indicated by the read memory number are read. In this operation, four images are randomly output and displayed on the monitor 3 until a command other than reproduction is executed.

Example 2. FIG. 5 is a block diagram showing the configuration of the still image recording / reproducing apparatus 2 in the second embodiment of the present invention. This device is the same as the device of the first embodiment except for the coordinate register 1.
0, mouse driver 11, and window generation circuit 12
Is added. Reference numeral 10 is a coordinate register that stores the area coordinates inside the system control 8, 11 is a mouse driver that sends the area coordinates clicked on the monitor screen by the mouse to the system control 8, and 12 is the area coordinates sent from the system control 8. Is a window generation circuit that generates a window on the monitor screen. The inside of the image memory unit 5 has a 4-frame memory structure as shown in FIG.
FIG. 6 is a flow chart showing the recording procedure in the second embodiment according to the present invention. FIG. 7 is a diagram showing a monitor screen during recording in the second embodiment according to the present invention.

Next, in the second embodiment, using the block diagram of FIG. 5 and the flowchart of FIG. 6, the four images 1 shown in FIG.
The operation of recording a set image will be described. In FIG. 6, N represents an enlarged image number, M represents an image memory number inside the image memory unit 5, K represents the number of image memories inside the image memory unit 5, and J represents an image number. These initial values are the enlarged image number N = 0, the image memory number M = 1, and the image number J = 1. The number K of image memories is 4 since one set of 4 images is present. These are set inside the system control 8. As shown in FIG. 5, the image input device 1
The input whole image is digitized by the A / D converter 4, and the digitized whole image data is transferred to the image memory unit 5 and stored in the image memory I inside the image memory unit 5 and at the same time D It is converted into an analog video signal by the / A converter 7 and displayed on the monitor 3. Next, the enlarged image number N and the image memory number M are respectively incremented to become the enlarged image number N = 1 and the image memory number M = 2, and the enlarged image I is input and stored in the image memory II. Again, the whole image is read from the image memory I, and on the whole image displayed on the monitor 3 as shown in FIG. 7, click the points a and b with the mouse to specify the area of the stored enlarged image I. To do. The system control 8 reads the area coordinates, which are the coordinates of points a and b clicked by the mouse driver 11, and reads the system control 8
The area coordinates are sent to the window generating circuit 12 at the same time as being stored in the internal coordinate register 10. The window generation circuit 12 generates a window showing a portion corresponding to the input enlarged image in the whole image according to the area coordinates, and synthesizes the window with the whole image read from the image memory I to obtain D /
Monitor 3 converted into analog video signal by A converter 7
Projected on. As the image displayed here, a video as shown in FIG. 7 is monitored. This operation is repeated as many times as the number of recorded images of the enlarged image. However, the maximum number is K-1.

Next, when the program number (group number) is input, the program number is input to the system control 8, and both the image memory number M and the image number J are set to 1. Then, the whole image data stored in the image memory I is read out by the system control 8 and displayed on the monitor 3, and at the same time, transferred to the DAT deck 6. The transferred whole image data is the program number and the image number J = 1.
It is recorded together with the DAT tape. Next, the image memory number M and the image number J are incremented, and M = 2 and J =
2, the enlarged image I data stored in the image memory II is read out and displayed on the monitor 3, and at the same time the DAT deck 6 is displayed.
Transfer to. At the time of transfer, the area coordinate data of the enlarged image I stored in the coordinate register 10 is also transferred at the same time by the system control 8, and the enlarged image I data, its area coordinate data and the image number J = 2 are recorded on the DAT tape. In this operation, the image memory number M is the enlarged image number N + 1.
Is repeated until the image memory number M = 4 in this case.
After recording the magnified image III data stored on the DAT tape, the magnified image III is output as an analog video signal, and the recording is finished in a state of being displayed on the monitor 3. The image data of one set of four images recorded in this manner is arranged on the DAT tape as shown in FIG. 9 represents the program number, 11 represents the coordinate data of each image, and the number in parentheses represents the image number. FIG. 8 shows the format of the sub data area on the DAT tape format. The image number and coordinate data are recorded in the sub data of the image as shown in the figure.

FIG. 10 is a flow chart showing the reproducing procedure in the second embodiment according to the present invention. FIG. 11 is a diagram showing a monitor screen during reproduction according to the second embodiment of the present invention.

Next, with reference to the block diagram of FIG. 5 and the flowchart of FIG. 10, the operation of the DAT tape in which one set of four images is recorded as shown in FIG. 9 will be described in the second embodiment. In FIG. 9, M is the image memory unit 5.
It represents the internal image memory number, and the initial value is M = 1.
First, the program number P of the desired image is input. This number is input to the system control 8, and in response to a command from the system control 8, the DAT deck 6 starts a high-speed search and searches for the program number P, and reads the already recorded program number P. And DAT
The deck 6 reproduces the input image data of the program number P from the DAT tape to the image memory unit 5. The entire image data to be reproduced first is stored in the image memory I and, at the same time, read out and converted into an analog video signal by the D / A converter 7 and displayed on the monitor 3. During this reproducing operation, the system control 8 always reads the program number, the image number and the area coordinates recorded on the DAT tape.

Subsequently, when the enlarged image I of the image number 2 is reproduced, the image number changes from 1 to 2, and the image memory in the image memory unit 5 is switched from I to II due to the change of the image number. Next, when the change of the program number is judged and there is no change, the enlarged image I data is stored in the image memory II. Since the system control 8 has the image memory number M = 2, the area coordinates are read from the sub data of the enlarged image I,
It is stored in the coordinate register 10 of the system control 8. When this operation is repeated and the enlarged image III data is stored in the image memory IV and displayed on the monitor 3, the DAT deck 6 reads the next program number, and the system control 8 judges the change of the program number and finishes the transfer. To do. In this state, the last read enlarged image III
Is converted into an analog video signal by the D / A converter 7 and displayed on the monitor 3. On the DAT tape shown in FIG. 9, in the image data of the set of four images in the image memory unit 5, the entire image is stored in the image memory I, the enlarged image I is stored in the image memory II, the enlarged image II is stored in the image memory III, and the image memory is stored. Enlarged image IV
II is memorized.

Next, the system control 8 again reads the entire image data of the image memory I, converts it into an analog video signal by the D / A converter 7, and displays it on the monitor 3. When the mouse 3 is clicked on the part to be enlarged on the monitor 3, the mouse driver 11 sends the coordinates of the clicked position to the coordinate register 10 inside the system control 8. The system control 8 searches whether the coordinates sent from the mouse driver 11 are included in the area coordinates of each enlarged image stored at the time of recording the DAT tape, and if they are not included, it waits for a click of a portion to be enlarged again and is included. For example, the enlarged image data of the area coordinates is displayed in the image memory unit 5
It is read out from the computer and converted into an analog video signal by the D / A converter 7 and displayed on the monitor 3. On the monitor 3 on which the whole image is displayed in this way, a desired enlarged image can be reproduced by clicking the portion to be enlarged with the mouse. FIG. 11 shows a screen of the monitor 3 in this reproducing operation state. The cross mark represents the part clicked with the mouse. For example, if the helicopter part of the entire image is clicked, an enlarged image of the helicopter is reproduced. Although the mouse is used to specify the desired enlarged image on the whole image, an instructing means for specifying coordinates on the whole image other than the mouse can be used instead.

When a desired enlarged image is designated at the time of reproduction, a window is generated by the window generation circuit 12 on the recorded enlarged image portion on the entire screen displayed on the monitor 3, and the mouse is moved within the window. A desired enlarged image may be designated by clicking with.

This time, the case of one set of four images has been described, but the frame memories inside the image memory unit 5 are additionally installed in parallel, and if the desired related image is one set within the number of frame memories, this configuration is not changed. All can be played at once.

Example 3. In the above-mentioned second embodiment, 4
The related images in one set of images had a relationship between the entire image and the enlarged image, but in the present embodiment, as shown in FIG.
When the related image of the set has a relationship between the whole image and the related image or the enlarged image, it is determined whether the recorded image is the enlarged image or the related image at the time of recording, and the recorded image is recorded. The reproduction image is selected after indicating the number of images, the number of enlarged images, the number of related images, and the related image number.

FIG. 13 is a block diagram showing the structure of a still image recording / reproducing apparatus 2 in the third embodiment according to the present invention. In the figure, the parts having the same numbers as those in FIG. 5 are the same as those in the second embodiment. It is the structure of. Reference numeral 13 in the drawing is an image information register for storing the image number, the identification number of the image, the number of images and the area coordinates inside the system control, and 14 in the drawing is the number of images, the number of enlarged images, the number of related images on the monitor screen, It is an image information display circuit that displays a related image number. By the way, the discrimination number is a number for discriminating whether the recorded image is an enlarged image of the whole image or a related image. FIG. 14 is a flowchart showing the recording procedure in the third embodiment of the present invention.

Next, in the third embodiment, using the block diagram of FIG. 13 and the flowchart of FIG. 14, 6 shown in FIG.
The operation of recording one set of images will be described. Here, for the sake of simplicity, an image memory having a 6-frame memory configuration (image memories I to VI) will be described as an example. 14
, J is the image number, K is the number of image memories in the image memory unit 5, M is the image memory number in the image memory unit 5, S is the number of enlarged images in one set of recorded images, and T is in one set of recorded images. Is the number of related images, U is the number of images in one set of recorded images, and R is a discrimination number for discriminating whether the recorded image is an enlarged image or a related image. K is 6 because one set of 6 images is present. These initial values are image numbers J =
1, image memory number M = 1, enlarged image number S = 0, related image number T = 1, and image number U = 0. These are set inside the system control 8. As shown in FIG. 13, the entire image input from the image input device 1 is the A / D converter 4
The digitized whole image data is transferred to the image memory unit 5 and stored in the image memory I inside the image memory unit 5 and at the same time the D / A converter 7
Is converted into an analog video signal and displayed on the monitor 3, and the image number J = 1 and the discrimination number R = 1 are stored in the related image information register 13 inside the system control 8. If the image to be input next is an enlarged image, the discrimination number R =
0, the number of enlarged images S, the image memory number M, and the image number J are respectively incremented, and J = 2, M = 2, S =
It becomes 1, and the enlarged image I is input and stored in the image memory II. The whole image is read again from the image memory I, and the area coordinates of the enlarged image I are designated on the whole image displayed on the monitor 3. The area coordinates of the designated enlarged image I, the image number J = 2, and the discrimination number R = 0 are stored in the related image information register 13 inside the system control 8. If the next input image is a related image, the discrimination number R =
1, the number of related images T, the image memory number M, and the image number J are respectively incremented, and J = 3, M = 3, T =
1, the related image I is input, stored in the image memory III, and displayed on the monitor 3. The image number J = 3 and the discrimination number R = 1.
Is stored in the related image information register 13 inside the system control 8. Similarly, the enlarged image II is stored in the image memory.
IV and the related image II are stored in the image memory V, and the related image III is stored in the image memory VI, and the respective image numbers, discrimination numbers, and area coordinates are stored in the related image information register 13 inside the system control 8. Number of images recorded at this point U
= J = 6, the number of enlarged images S = 2, and the number of related images T = 4, which are stored in the related image information register 13 inside the system control 8. This operation is repeated as many times as the number of recorded images of the enlarged image and the related image, and the maximum number is K-1.

Next, when the program number (group number) is input, the program number is input to the system control 8, and both the image memory number M and the image number J are set to 1. Then, the whole image data stored in the image memory I is read out by the system control 8 and displayed on the monitor 3, and at the same time, transferred to the DAT deck 6. The number of images U stored in the related image information register 13 by the system control 8 during transfer U = 6, the number of enlarged images S = 2,
Number of related images T = 4, discrimination number R = 1 and image number J = 1
And the program number, the number of images U = 6, the number of enlarged images S = 2, the number of related images T = 4, the discrimination number R = 1 and the image number J = 1.
Record on T-tape. Next, the image memory number M and the image number J are incremented to M = 2, J = 2, and the enlarged image I data stored in the image memory II is read out and displayed on the monitor 3 and at the same time transferred to the DAT deck 6. The image number J = 2 and the discrimination number R stored in the related image information register 13 by the system control 8 at the time of transfer.
= 0 and area coordinates are also transferred at the same time, and the transferred enlarged image I data, the image number J = 2, the discrimination number R = 0 and the area coordinates are recorded on the DAT tape. Similarly, the image data of the image memories III to VI are also recorded on the DAT tape. This operation is repeated until the image memory number M reaches the number U of recorded images. 6 images recorded in this way 1
Each image data of the set is arranged on the DAT tape as shown in FIG. 9 in the figure is the program number, ()
The numbers in parentheses are image numbers, and the numbers in [] are discrimination numbers. The number of images of one set of 6 images, the number of enlarged images, and the number of related images are recorded in the sub-data of the entire image, and the image number, the discrimination number, and the area coordinates are recorded in the sub-data of each image.

Next, the operation of reproducing one set of six images recorded on the DAT tape as shown in FIG. 15 will be described. When the program number is entered, the entire image data is first stored in the image memory I, and the number of images U = 6, the number of related images T = 4, and the number of enlarged images S = 2 are stored in the related image information register 13 inside the system control 8. Remembered. System control 8 is always DAT during playback
The program number, the image number, the area coordinates, and the discrimination number recorded on the tape are read, the image memory in the image memory unit 5 is switched according to the change of the image number, and the image number and the discrimination number of each image are stored in the system control 8. The data of 6 images are stored in the image memory 5 when the program number changes.

Next, the system control 8 has the number of images U = 6, the number of related images T = 4, the number of enlarged images S = 2, and the discrimination number 1 (related image) from the related image information register 13 inside the system control 8. The image numbers 1, 3, 5, and 6 are read out and sent to the related image information display circuit 14. The above image information sent to the related image information display circuit 14 is stored in the image memory.
D / A converter 7 combined with the whole image read from I
Is converted into an analog video signal and displayed on the monitor 3. When a related image is reproduced, a desired related image is designated and reproduced by clicking the image number of the related image displayed on the monitor 3 with a mouse or inputting the image number. Since the case of reproducing the enlarged image is similar to that of the second embodiment, the description thereof will be omitted.

The input signal is not limited to the NTSC video signal, but P
It is also compatible with AL, SECAM and high definition video signals.

[0048]

As described above, according to the first aspect of the present invention, when a plurality of sets of related still images are recorded, a set number for each set of related still images and a set number for each set of related still images. And the image number of each still image in the set of related still images is configured to be recorded in the portion of the recording medium where information about the recorded image is recorded. It is possible to reduce the number of reproduction operations and the reproduction time, and to easily search for a desired image.

In the second invention, when the recording medium is a DAT tape and a plurality of sets of related still images are recorded, the sub-ID of the first still image data in the set of related still images is associated with the program number and the related still image. Since the image number is recorded in each still image in the set of images, the desired related still image can be retrieved quickly from the DAT tape and efficiently stored in the image memory. It is possible to collectively reproduce the set, and there is an effect that the reproduction time can be shortened.

In the third invention, when a plurality of sets of related still images are recorded, a position in the related still image to be recorded is specified by the image position specifying means, and the position coordinates of the specified still image are specified. At the time of recording and reproducing, the desired related image portion is specified by the image position specifying means, and the specified related still image data is read from the image memory, so that the desired image can be easily searched and reproduced. This has the effects of reducing the number of operations and the reproduction time and promptly selecting and reproducing a desired related still image.

In the fourth aspect of the invention, when recording a plurality of related still images, the related image information storage means records the discrimination number in the recording medium, and the image information display circuit displays the image information during reproduction. Therefore, there is an effect that the image contents of a plurality of still images can be discriminated and a desired still image can be quickly selected and reproduced.

[Brief description of drawings]

FIG. 1 is a diagram showing an arrangement of image data on a DAT tape in a first embodiment according to the present invention.

FIG. 2 is a flowchart showing a recording procedure in the first embodiment according to the present invention.

FIG. 3 is a diagram showing a format of a sub ID part in one block in a sub data area in the first embodiment according to the present invention.

FIG. 4 is a flowchart showing a reproduction procedure in the first embodiment of the present invention.

FIG. 5 is a block diagram showing a configuration of a still image recording / reproducing apparatus 2 in a second embodiment according to the present invention.

FIG. 6 is a flowchart showing a recording procedure in a second embodiment according to the present invention.

FIG. 7 is a diagram showing a monitor screen during recording in the second embodiment according to the present invention.

FIG. 8 is a diagram showing a format of a sub ID portion in one block in a sub data area in the second embodiment according to the present invention.

FIG. 9 is a diagram showing an arrangement of image data on a DAT tape in a second embodiment according to the present invention.

FIG. 10 is a flowchart showing a reproduction procedure in the second embodiment according to the present invention.

FIG. 11 is a diagram showing a monitor screen during reproduction according to the second embodiment of the present invention.

FIG. 12 is a diagram showing a whole image of one certain image, two images obtained by enlarging a certain portion of the whole image, and three images related to the whole image.

FIG. 13 is a block diagram showing a configuration of a still image recording / reproducing apparatus 2 in a third embodiment according to the present invention.

FIG. 14 is a flowchart showing a recording procedure in the third embodiment of the present invention.

FIG. 15 is a diagram showing an arrangement of image data on a DAT tape according to a third embodiment of the present invention.

FIG. 16 is a system configuration diagram of a conventional still image recording / reproducing device 2 and peripheral devices.

FIG. 17 is a block diagram showing a configuration of a conventional still image recording / reproducing apparatus 2.

FIG. 18 is a block diagram showing an internal configuration of the image memory unit 5.

FIG. 19 is a 1 in the sub data area in the conventional example.
It is a figure which shows the format of the sub ID part in a block.

FIG. 20 is a diagram showing an entire image of one certain image and three images obtained by enlarging a certain portion of the entire image.

FIG. 21 is a flowchart showing a recording procedure in the conventional still image recording / reproducing apparatus 2.

FIG. 22 is a DAT in the conventional still image recording / reproducing apparatus 2.
It is a figure which shows arrangement | positioning of each image data on a tape.

FIG. 23 is a flowchart showing a reproduction procedure in the conventional still image recording / reproducing apparatus 2.

[Explanation of symbols]

 1 image input device 2 still image recording / reproducing device 3 monitor 4 A / D converter 5 image memory 6 DAT deck 7 D / A converter 8 system control 9 program number 10 coordinate register 11 mouse driver 12 window generation circuit 13 related image information Register 14 Related image information display circuit

Claims (4)

[Claims] 1. An image memory for storing image data converted into a digital signal, a recording medium for recording the image data and related information about the image data, and the image data and the association stored in the image memory. In a still picture recording / reproducing apparatus equipped with a recording / reproducing means for recording and reproducing information on a recording medium and a means for controlling the image memory and the recording / reproducing means, when a plurality of sets of still images are recorded, a still picture related to each other is recorded. Means for setting group selection information in a group of images, means for setting each still image selection information in each still image in the group of still images, recorded group selection information and each still image Stillness characterized by including means for selecting image selection information, means for searching the recorded group selection information and each still image selection information, and collectively reproducing still images with desired association Image recording / playback device. 2. An image memory for storing image data converted into a digital signal, a recording medium for recording the image data and related information about the image data, and the image data stored in the image memory and the association. In a still picture recording / reproducing apparatus equipped with a recording / reproducing means for recording and reproducing information on and from a recording medium, and a means for controlling the image memory and the recording / reproducing means, the recording medium is a DAT tape, and a related still image is recorded. When recording multiple sets, the sub ID of the DAT tape
And means for recording the program number in the sub-data, the sub-ID of the first still image data of the set of related still images, and the image number for the sub-data of each still image in the set of related still images. A means for recording, a means for selecting the program number and the image number, and a means for retrieving the desired program number and the image number from the DAT tape, and collectively reproducing the desired still image A still image recording / reproducing apparatus characterized by: 3. An image memory for storing image data converted into digital signals, a recording medium for recording the image data and related information about the image data, and the image data stored in the image memory and the relation. Recording / reproducing means for recording and reproducing information on a recording medium, a D / A converter for converting the image data into an analog video signal, a monitor for displaying the analog video signal as a still image, the image memory and the recording / reproducing. In a still image recording / reproducing apparatus having means for controlling the means, when recording a plurality of sets of related still images, a means for setting the set selection information into a set of related still images, Means for setting still image selection information for each still image in a set of related still images, and means for selecting the recorded set selection information and still image selection information Means for retrieving the desired set selection information and each still image selection information recorded, image position designating means for designating a predetermined image position in the still image, and image frame coordinate storage for storing designated image frame coordinates Means and
A designated position coordinate transfer circuit that sends designated image frame coordinates to the image frame coordinate storage means and a designated frame generation circuit that generates a designated image frame on the monitor screen are provided, and the designated frame is reproduced when a related still image is reproduced. A still image recording / reproducing apparatus, wherein a generation circuit generates a designated image frame in a still image, and the image position designating means selects and reproduces a desired related still image. 4. An image memory for storing image data converted into a digital signal, a recording medium for recording the image data and related information about the image data, and the image data stored in the image memory and the association. Recording / reproducing means for recording and reproducing information on a recording medium, a D / A converter for converting the image data into an analog video signal, a monitor for displaying the analog video signal as a still image, the image memory and the recording / reproducing. In a still image recording / reproducing apparatus having means for controlling the means, an image position specifying means for specifying a desired related image position, a related image information storage means for storing a specified image frame coordinate and a discrimination number of a recorded image, and a specified image. A specified position coordinate transfer circuit for sending the frame coordinates to the related image information storage means, and a specified frame generation circuit for generating the specified image frame on the monitor screen,
A related image information display circuit for displaying related information relating to the image data on a monitor screen, and the related image information storing means records the discrimination number in the recording medium when recording a plurality of related still images. Then, at the time of reproduction, the related image information display circuit displays related information relating to the image data, the image contents of a plurality of still images are discriminated, and a desired still image is selected and reproduced. apparatus.