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Key frame processing method and system

A processing method and technology for a processing system, applied in the field of key frame processing methods and systems, can solve problems such as unfavorable management and backup, system performance degradation, and large number of files, and achieve convenient management and backup, reduction of read and write operations, and system performance. improved effect

Active Publication Date: 2014-07-02
CHINA CENTRAL TELEVISION +1
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Problems solved by technology

[0003] In the existing storage method, if it is saved as a file directory, due to the large number of key frames for video overview browsing, it will lead to too many files, which is not conducive to management and backup, and the read and write operations will be significantly It consumes the I / O resources of the system, resulting in a decrease in system performance; and if the ZIP method is used for storage, whenever a key frame of a certain frame is to be obtained, it is necessary to scan from the beginning of the file. It needs to be scanned as a whole, which is not conducive to key frame query when there are many key frames

Method used

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  • Key frame processing method and system

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Embodiment Construction

[0016] In order to make the technical solutions and advantages of the present invention clearer, the exemplary embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all implementations. Exhaustive list of examples.

[0017] The key frame processing method and system provided by the present invention are mainly used to store multiple key frame data and related metadata as a single file with index information, thereby reducing read and write operations on system storage and improving system performance.

[0018] figure 1 It is a flowchart of the key frame processing method of the present invention. Such as figure 1 As shown, the key frame processing method of the present invention comprises the following steps:

[0019] First, in step S101, key frames are extracted from a video file.

[0020] Usually, keyf...

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Abstract

The invention provides a key frame processing method. The key frame processing method comprises the steps that a key frame is extracted from a video file; metadata of the key frame are obtained; a key frame index file is generated in a preset file storage format by the utilization of the key frame and the metadata of the key frame. In addition, the invention provides a key frame processing system. According to the key frame processing method and system, the multiple key frame data and the related metadata are stored to be the single file with the index information, and therefore read-write operation of the system storage is reduced, the system performance is improved, the file is managed and backed up conveniently, and the efficiency of obtaining the key frame information is ensured.

Description

technical field [0001] The invention relates to the field of broadcasting and television, in particular to a key frame processing method and system. Background technique [0002] Each picture in a video file is called a frame, and the summary browsing and quick positioning of the video content can be realized by browsing the key frame picture. Therefore, the key frame is important auxiliary information for video browsing. A single key frame image is generally in JPEG format, and the entire key frame sequence is generally saved as a file directory or compressed as a ZIP file. [0003] In the existing storage method, if it is saved as a file directory, due to the large number of key frames for video overview browsing, it will lead to too many files, which is not conducive to management and backup, and the read and write operations will be significantly It consumes the I / O resources of the system, resulting in a decrease in system performance; and if the ZIP method is used for...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/222G06F17/30
Inventor 丁文华顾军杨磊雒勇周海滨邹娟郭志芳
Owner CHINA CENTRAL TELEVISION
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