JPH11308572A - Video recording and reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a means that easily seek the head of each program while viewing an index image in the case of using a stream medium such as a VTR. SOLUTION: An MPU 7 controls a run control section 5 according to a procedure of an index generating section 9a to reproduces a video signal S1 to drive a video tape of a VTR 1 and displays the video signal on a video monitor 10. An external remote commander or the like designates an optional image from a displayed image as an index image and video capture section 2 receives it, a data compression section 3 compresses the data of the index image and an image data memory 4 stores the data with a position of the tape. In the case of reproduction, the index image data stored in the image data memory 4 are read and displayed on the video monitor as multi-screen data and the remote commander 8 is used to select a desired image among the displayed index images. The MPU 7 detects the tap position corresponding to the selected index image and starts reproducing the video signal.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention
The present invention relates to a video recording and reproducing apparatus that records and reproduces a video signal using a stream medium such as a TR.

[0002]

2. Description of the Related Art In a conventional video signal video recording / reproducing apparatus using a stream medium such as a VTR, a specific code is embedded in a stream medium for each program to be used as an index. Then, when performing cueing, the code must be sequentially searched from the stream medium, and the search must be performed.
There was a problem that it took time. In addition, it was not possible to select a program by looking at the sample images, which was inconvenient.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and provides a means for easily searching for an index while viewing an index image in a video recording / reproducing apparatus using a stream medium such as a VTR. The purpose is to do.

[0004]

In a video recording / reproducing apparatus for recording / reproducing a video signal using a stream medium such as a VTR, index image data capturing means for capturing index image data serving as an index of the recorded video signal, Travel control means for controlling the travel of the stream medium to specify the index image position of the stream medium; randomly accessible storage means for storing index image data and the like; and selection input means for designating and selecting the stored index image And control means for controlling these, by designating an index image, searching for the position of the stream medium on which the index image is recorded and reproducing it.

[0005] The storage means stores the index image data and the position of the index image on the stream medium, and by specifying the index image, retrieves and reproduces the position of the stream medium on which the index image is recorded. To

[0006] The index image position is specified by the travel control means by the length from the head of the stream medium.

The traveling control means is provided with means for comparing the index image with the video signal recorded on the stream medium,
The index image position is specified by setting the position of a stream medium on which a video signal matching the index image is recorded.

[0008] The travel control means is provided with means for comparing the index image with the video signal recorded on the stream medium,
The index image position is specified by specifying the approximate position by the length from the head of the stream medium, and then accurately specifying the position of the stream medium on which the video signal matching the index image is recorded.

[0009] Index image data is taken in by displaying a reproduced video signal on a video monitor and designating an arbitrary image from an external remote controller or the like.

The selection input means performs this operation by displaying an index image on a multi-screen on a video monitor and designating one of the images.

The index image data is stored in the JPE
The data is compressed by G and stored.

For a randomly accessible storage means for storing the index image data and the index image position, a removable storage medium such as a memory card is used.
To be able to manage corresponding to the stream medium.

The stream medium is provided with an ID adding means for adding an ID representing each stream medium, and also stores an ID corresponding to a randomly accessible storage means.

An ID representing a stream medium is inserted at a position corresponding to an index image taken from the stream medium.

I representing a stream medium to be inserted into a portion corresponding to an index image taken from the stream medium
D inserts into the corresponding image with digital watermark technology

The storage means capable of random access uses a fixed storage medium such as a hard disk, and can store index image data corresponding to a plurality of stream media.

The control means is a general-purpose personal computer.

[0018]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic block diagram of a main part of a video recording and reproducing apparatus according to the present invention. A video tape is loaded into a VTR 1 for recording and reproducing a video signal using a stream medium, and index image data is first captured and stored as follows. M as control means
PU 7 is a firmware index creation processing unit 9a
In accordance with the above procedure, the travel control unit 5 is controlled to cause the video tape to travel while managing the tape position, for example, the tape length from the head, and reproduce the video signal S1. Video signal S1
Switches the display control unit with the MPU 7 and sets the video monitor 1
Display at 0. While watching the video displayed on the video monitor 10, an arbitrary image is designated as an index image from an external remote controller or the like, and is taken into the video capture unit 2 including an A / D conversion circuit and a field memory. The captured image data is converted into a JPEG image by the data compression unit 3.
Then, the data is compressed and stored in the image data memory 4 together with the tape position.

Next, reproduction of a video signal using the index image data is performed as follows. The MPU 7 reads the index image data stored in the image data memory 4 according to the procedure of the index image search processing unit 9b of the firmware, switches the display control unit 6, and displays the image on the video monitor 10. In this case, if a plurality of images are arranged vertically and horizontally by the display control unit 6 and displayed on the video monitor 10 on multiple screens, it is convenient for searching. Video monitor 10
Is designated by the remote controller 8 to select a desired image. The MPU 7 detects a tape position corresponding to the index image selected from the image data memory 4, and starts reproducing a video signal from the tape position.

For applications that require accurate cueing, such as for presentations, a separate means for comparing the index image with the video signal recorded on the stream medium is provided. After the approximate position is specified by the length from the head, the position of the stream medium on which the video signal matching the index image is recorded may be further specified.

As a storage medium of the image data memory 4,
It is convenient to use a removable storage medium such as a memory card so that the video data can be managed in a paired manner. Alternatively, as a storage medium of the image data memory 4 having a large capacity such as a hard disk which cannot be removed, the ID of the video tape corresponding to the index image selected as described above is stored in the image data memory 4 and the video tape. The index image data corresponding to the loaded video tape is added to the MPU7.
Can be selected for use. As a means for adding an ID of a video tape, an ID can be inserted into an image at a position corresponding to an index image captured from the stream medium by a digital watermark technique or the like.
Further, the video recording / reproducing apparatus according to the present invention can be realized at low cost by configuring a video capture unit and other parts centering on the control unit 7 with a general-purpose personal computer.

[0022]

According to the present invention, in a video recording / reproducing apparatus for recording / reproducing a video signal using a stream medium such as a VTR, index image data capturing means for capturing index image data serving as an index of a recorded video signal, and running of the stream medium , Control means for specifying the index image position of the stream medium, random access storage means for storing index image data and the like, selection input means for specifying and selecting the stored index image, and A video recording / reproducing apparatus using a stream medium such as a VTR by providing a control means for controlling the apparatus so as to search for and reproduce the position of a stream medium on which the index image is recorded by designating the index image; Can be accurately and easily located. .

[Brief description of the drawings]

FIG. 1 is a schematic block diagram of a main part of a video recording / reproducing apparatus according to the present invention.

[Explanation of symbols]

 Reference Signs List 1 VTR 2 Video capture unit 3 Data compression unit 4 Image data memory 5 Travel control unit 6 Display control unit 7 MPU 8 Remote controller 9a Index creation processing unit 9b Index image search processing unit 10 Video monitor

Claims (14)

[Claims] 1. A video recording / reproducing apparatus for recording / reproducing a video signal using a stream medium such as a VTR, comprising: index image data capturing means for capturing index image data as an index of the recorded video signal; Traveling control means for controlling and specifying the index image position of the stream medium, storage means for randomly storing the index image data and the like, selection input means for designating and selecting the stored index image, and controlling these A video recording / reproducing apparatus comprising: a control unit for performing a search for a position of a stream medium on which an index image is recorded by designating the index image and reproducing the position. 2. A storage means for storing index image data and a position of the index image on a stream medium, and by specifying an index image, searching for a position of the stream medium on which the index image is recorded and reproducing the same. 2. The video recording / reproducing apparatus according to claim 1, wherein 3. The video recording / reproducing apparatus according to claim 2, wherein the index image position specified by the travel control means is determined by a length from the head of the stream medium. 4. The travel control means includes means for comparing an index image with a video signal recorded on a stream medium. The position of the index image is specified by the position of a stream medium on which a video signal matching the index image is recorded. 2. The video recording / reproducing apparatus according to claim 1, wherein: 5. The travel control means is provided with a means for comparing an index image with a video signal recorded on a stream medium, and the index image position is specified by roughly specifying the position from the head of the stream medium. 3. The video recording / reproducing apparatus according to claim 2, wherein the video recording / reproducing apparatus is configured to accurately specify the position of the stream medium on which the video signal matching the index image is recorded. 6. The method of capturing index image data,
2. The video recording / reproducing apparatus according to claim 1, wherein the reproduced video signal is displayed on a video monitor, and an arbitrary image is designated by a remote controller or the like from outside. 7. The video recording / reproducing apparatus according to claim 1, wherein the selection input means displays the index image on a multi-screen on a video monitor and designates one of the images. 8. The storage of index image data is performed by JP
2. The video recording / reproducing apparatus according to claim 1, wherein data is compressed and stored by an EG or the like. 9. A removable storage medium such as a memory card is used as a randomly accessible storage means for storing the index image data and the index image position.
2. The video recording / reproducing apparatus according to claim 1, wherein the video recording / reproducing apparatus can be managed in correspondence with a stream medium. 10. The stream medium according to claim 1, wherein the stream medium is provided with ID adding means for adding an ID representing each stream medium, and the ID corresponding to the randomly accessible storage means is also stored. Video recording and playback device. 11. The video recording / reproducing apparatus according to claim 10, wherein the ID representing the stream medium is inserted into a portion corresponding to the index image taken from the stream medium. 12. The video recording / reproducing apparatus according to claim 11, wherein an ID representing a stream medium to be inserted into a portion corresponding to an index image taken from the stream medium is inserted into the corresponding image by a digital watermark technique. 13. A storage means that can be randomly accessed uses a fixed storage medium such as a hard disk.
11. The storage device according to claim 10, wherein index image data and the like corresponding to a plurality of stream media are stored.
The video recording / reproducing device as described in the above. 14. The video recording / reproducing apparatus according to claim 1, wherein the control means is a general-purpose personal computer.