Complexity scalable control algorithm for intra coding in H.264 under energy constraints

被引：0
作者：
Gao X. [1 ,2 ]
Lam K.-M. [2 ]
Zhuo L. [1 ]
Shen L. [1 ]
机构：
[1] Signal and Information Processing Laboratory, Beijing University of Technology
[2] Centre for Signal Processing, Department of Electronic and Information Engineering, The Hong Kong Polytechnic University, Kowloon
来源：
High Technology Letters | 2010年 / 16卷 / 03期
关键词：
Complexity allocation; Complexity scalable control; Energy constraints; H.264; Intra coding; Rearrangement of candidate modes;
D O I：
10.3772/j.issn.1006-6748.2010.03.009
中图分类号：
学科分类号：
摘要：
In this paper, the complexity of intra coding is first analyzed so as to achieve a weight of complexity measurement for each intra mode. Then, a new complexity scalable control algorithm for intra coding in H.264 is proposed, based on the rearrangement of the order of candidate modes and an efficient complexity allocation and control (CAAC) scheme at the macroblock (MB) level. The candidate modes of each MB are rearranged according to the local-edge information. Experimental results show that our proposed algorithm can make an appropriate cut-off point of the candidate modes sequence adaptively according to the current energy condition of a mobile device, so as to adjust the complexity at any level while maximizing the video quality, which can prolong the operational lifetime of the battery with minimum degradation in video quality. © by High Technology Letters Press.
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页码：274 / 279
页数：5
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