Method and device for quantizing video coding movement intensity

A technology of motion intensity and quantization method, applied in the field of video coding and decoding, which can solve the problems of inability to achieve rate-distortion performance, optimization of subjective effects, and no consideration of the difference between violent motion and slow motion or static images.
CN103167290AInactive Publication Date: 2013-06-19深圳市云宙多媒体技术有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
深圳市云宙多媒体技术有限公司
Publication Date
2013-06-19
Estimated Expiration
Not applicable · inactive patent

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Abstract

An embodiment of the invention discloses a method and a device for quantizing video coding movement intensity. The method includes the steps: firstly, providing a macro-block movement intensity and fuzzy intensity acquisition mechanism; and secondly, designing quantizing adjustment strategies on different coding structures and different frame categories according to the movement intensity and the fuzzy intensity of each macro-block. By designing the subsequent quantizing adjustment strategies, code rates can be secondarily adjusted according to the movement intensity, namely, lower code rates are distributed for the macro-blocks violently moving, the saved code rates are distributed to portions sensitive to subjective effect and rate-distortion performance improvement of a video image, and finally, rate-distortion performances and subjective effects are optimized when a coder violently or non-violently moves.
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Description

technical field

[0001] The present invention relates to the field of video encoding and decoding, in particular to a video encoding motion intensity quantization method and device. Background technique

[0002] The source of intense motion has the characteristics of small inter-frame information redundancy. Therefore, the compression of such source requires the encoder to have inter-frame coding technology with good performance. However, when compressing a violently moving film source at a low bit rate, the contradiction that the overall bit rate is not enough will become more prominent. high.

[0003] On the other hand, when the moving speed of the object reaches a certain limit, due to the lack of image acquisition equipment, problems such as video image blurring and ghosting often occur. In this way, for the encoder, its original film source is defective. At this time, if the encoder assigns a larger bit rate to this type of video image, on the one hand, it cannot impr...

Claims

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