Separating and replaying method for video frequency image

A video image, non-normal technology, applied in the field of video image splitting and reproduction, can solve the problems of increasing the cost of compression, not finding the technology to protect the intellectual property rights of compressed video images, increasing the cost of video compression, and achieving intellectual property rights. protective effect
CN1649412AInactive Publication Date: 2005-08-03BEIDA QINGNIAO INTEGRATED CIRCUIT BEIJING
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIDA QINGNIAO INTEGRATED CIRCUIT BEIJING
Publication Date
2005-08-03
Estimated Expiration
Not applicable · inactive patent

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Abstract

This invention provides a method for the splitting and reproduction of video images including: the video image forms several reference frames and non-reference frames by encoding, among which, the splitting refers to extract a part or total compressed video image data in the above total or part reference frames, the extracted video compressed data are key contents, others are basic contents, which are stored or transmitted separately, a user decoder can split-join the key and basic contents to a complete original video image to play it if getting them the same time, if it cannot get the key content, then the decoded recovered image is wrong, which can protect the copyright of video images effectively not needing extra cipher / decipher algorithms.
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Description

technical field

[0001] The invention belongs to the technical field of video image processing, and in particular relates to a video image splitting and reproduction method capable of protecting the video image copyright. Background technique

[0002] The purpose of video compression is to reduce the video data rate on the premise of ensuring the visual effect, and at the same time reduce the video data storage volume and recording density. The spatial correlation and temporal correlation existing in the video image make a large amount of redundant information be stored in the video image data. The purpose of video compression is to remove these redundant information, save only a small amount of irrelevant information in the video image and transmit it, so that the storage space of the video image and the bandwidth occupied during transmission can be greatly saved. Before playing, the compressed video image needs to be decompressed (generally called decoding), and the decode...

Claims

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