Optimizing distribution method in moving evaluation for hardware computing power resource

A technology of motion estimation and computing power, applied in the multimedia field, can solve problems such as high computational complexity, weak computing power, and unsatisfactory video decoding

Inactive Publication Date: 2005-08-03
ZHEJIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to the weak computing power of portable mobile devices, and the relatively high computational complexity of video decoding in multimedia, the traditio

Method used

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  • Optimizing distribution method in moving evaluation for hardware computing power resource
  • Optimizing distribution method in moving evaluation for hardware computing power resource
  • Optimizing distribution method in moving evaluation for hardware computing power resource

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Embodiment Construction

[0032] The method proposed by the present invention for rationally allocating hardware computing power resources for motion estimation under the premise of limited hardware computing power is mainly applicable to use under the condition of hardware support with different computing power. Mainly proceed as follows:

[0033] 1. Division of macroblock priority

[0034] The current frame is divided into macroblocks and divided into 16×16 macroblocks, and then the difference between one macroblock of the current frame and the corresponding macroblock of the previous frame is obtained to obtain the sum of absolute errors. Then the macroblocks are prioritized according to the size of the absolute error sum. When the difference between the absolute error sums of two macroblocks is within the range of 100, the priorities of the two macroblocks are considered to be equal. At the same time, it is stipulated that the priority of the absolute error and the large macroblock is higher, and...

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Abstract

This invention discloses an optimized distribution method of a hardware computing capacity resource in motion estimation. H 264 is a new generation video encode standard, which absorbs the advantages of present video code standard and puts forward many new algorithms and greatly increases encode efficiency and image quality yet it needs the support by carious hardware. This invention puts forward optimizing motion estimate, so as to distribute hardware resource reasonably further to get the optimum peak SN ratio and code rate to realize balanced adjustment of operation complexity and predictive accuracy.

Description

technical field [0001] The invention relates to the field of multimedia technology supported by different hardware conditions, in particular to a method for optimally allocating hardware computing power resources in motion estimation. Background technique [0002] H.264 is the latest video coding standard formulated by JVT, a joint expert group of ITU-T and MPEG. This coding standard can obtain high coding efficiency, especially in terms of low bit rate, which is significantly improved compared with MPEG-4. , very suitable for low-bandwidth, high-quality network video applications. However, in order to improve the encoding efficiency, H.264 adopts many algorithms with high computational complexity, which makes the encoding and decoding calculations very heavy, so the requirements for software and hardware are very high, and it also increases the difficulty of encoding and decoding. Because under normal circumstances, many methods cannot achieve the optimal encoding quality ...

Claims

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Application Information

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IPC IPC(8): H04N19/127H04N19/36H04N19/43H04N19/51
Inventor 卜佳俊陈纯杨智娄水勇莫林剑李旭
Owner ZHEJIANG UNIV
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