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Selecting method for predicting mode between frames

An inter-frame prediction mode and inter-frame prediction technology, which is applied in TV, electrical components, digital video signal modification, etc., can solve the problems of video coding efficiency reduction, affecting video communication effect, and high calculation intensity, etc., to simplify calculation complexity , Improving efficiency and video communication effects, Simplifying the effect of the selection process

Inactive Publication Date: 2006-03-22
HUAWEI TECH CO LTD
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Problems solved by technology

[0022] In the process of selecting the inter prediction mode for each macroblock MB, the SAD values ​​under the seven prediction modes are calculated respectively, and then the inter prediction mode corresponding to the minimum SAD value is selected as the inter prediction mode corresponding to each MB, Its calculation intensity is quite high, which will reduce the efficiency of video encoding and seriously affect the effect of video communication; at the same time, this high-intensity calculation process will also bring large calculation overhead, so hardware such as multimedia processors is required The device has the performance to support such intensive computing

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  • Selecting method for predicting mode between frames
  • Selecting method for predicting mode between frames

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[0062] The selection method of the inter-frame prediction mode in the present invention is proposed on the basis of detailed analysis of the defects in the selection method of the inter-frame prediction mode in the prior art, wherein the detailed analysis of the defects in the selection method of the inter-frame prediction mode in the prior art is as follows :

[0063] 1) The selection method of the inter-frame prediction mode in the prior art does not make full use of the properties of the video image sequence and the different characteristics of different regions of the image to simplify the selection process of the inter-frame prediction mode.

[0064] In fact, different video image sequences may have different attributes in various aspects. For example, some images have a large degree of motion and rich details; while some images have a small degree of motion, monotonous details, large flat areas, and lack of change. For the interior of the video image, the above-mentioned...

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Abstract

This invention discloses a method for selecting interframe prediction mode in video image interframe prediction coding process, which contains dividing video image sequence into different area according to different attribute, limiting the selectable interframe prediction mode of each image according to the block scale distribution property of different image area, selecting corresponded interframe prediction mode and coding in limited interframe prediction mode for each macro block in each image area. Said invention simplifies the selection process and raises efficiency and communication effect.

Description

technical field [0001] The invention relates to video compression encoding and decoding technology in the field of multimedia communication, in particular to a method for selecting an inter-frame prediction mode. Background technique [0002] The H.264 compression coding standard is currently the most advanced international standard for video compression coding. Its full name is ITU-T H.264 Recommendation, International Telecommunication Union-Telecommunication Standardization Organization H.264 Recommendation, Hereinafter, it will be referred to simply as the H.264 standard. The H.264 standard is jointly developed by ITU-T and the Moving Picture Experts Group (MPEG, Moving Picture Experts Group) of the International Organization for Standardization (ISO, International Organization for Standardization) / International Electrotechnical Commission (IEC, International Electrotechnical Commission). The standard has been developed since 1999, with the participation of equipment ma...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/32H04N7/26H04N19/176H04N19/503
Inventor 罗忠宋彬常义林
Owner HUAWEI TECH CO LTD
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