文献类型：会议论文

英文题名：A fast mode selection algorithm of intra-frame used in logistics video surveillance

作者：Ma, Li[1]; Song, Jianbin[2]; Wang, Xiuying[1]

第一作者：Ma, Li

通讯作者：Ma, L.

机构：[1] College of Automation, Beijing Union University, Beijing 100101, China; [2] Media Technology Department of Centre Institute, Huawei Corporation, Beijing 100095, China

第一机构：北京联合大学城市轨道交通与物流学院

会议论文集：Proceedings of the 2012 International Conference on Information Technology and Software Engineering - Software Engineering and Digital Media Technology

会议日期：December 8, 2012 - December 10, 2012

会议地点：Beijing, China

语种：英文

外文关键词：Digital storage - Frequency domain analysis - Image coding - Security systems - Software engineering - Textures

摘要：H.264 adopt intra-prediction algorithm which increase computation complexity of encoder drastically. Thus, a fast mode selection algorithm for H.264 intra-prediction based on the features of DCT coefficients in frequency domain and the correlation of the predictive mode in spatial domain is proposed. This paper estimates the complexity of the block coding, texture of the direction and possible coding mode, and then selects the code block size, narrow mode selection range. Experimental results show, that compared with the other existing fast mode decision algorithm, the proposed algorithm significantly decreases the time consumed by I-frame coding about 64.1 % while the loss of PSNR ratio is negligible. ? 2013 Springer-Verlag.