QQ客服 官方微博 反馈留言

	A highly efficient mode decision algorithm and architecture for AVS HD video encoder
	Li, Shuai ; Zhu, Chuang ; Wang, Fei ; Jia, Hui-Zhu ; Xie, Xiao-Dong ; Gao, Wen
	2012
英文摘要	In Advanced Audio Video coding Standard (AVS), the utilization of variable block size ranging from 16x16 to 8x8 in inter frame encoding improves the coding efficiency significantly compared with a fixed MB partition. Rate distortion optimization (RDO) is the best known mode decision method, but the corresponding extremely high computational complexity limits its application. This paper proposes an algorithm based on the visual perception model and Sobel operator edge detection model to quickly select the best inter mode from 16x16, 16x8, 8x16 and 8x8 just by using the original pixels. We further analyze and redesign the MB level pipeline structure, and give the optimized hardware structure of the encoder. We tested different sequences including cif, 720p and 1080p, and the experimental results show that the coding efficiency is comparable with the traditional RDO method. The proposed hardware structure saves fractional motion estimation (FME) by 60% in areas and reduces the processing time by 200 cycles. Our proposed mode decision architecture can support the real time processing of 1080P@30fps. ? 2012 IEEE.; EI; 0
语种	英语
DOI标识	10.1109/IST.2012.6295561
内容类型	其他
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/410717]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Li, Shuai,Zhu, Chuang,Wang, Fei,et al. A highly efficient mode decision algorithm and architecture for AVS HD video encoder. 2012-01-01.

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。