Low-complexity quantization for H.264/AVC

doi:10.1007/s11554-008-0098-5

CORC > 计算技术研究所 > 中国科学院计算技术研究所 > 中国科学院计算技术研究所期刊论文 > 英文

	Low-complexity quantization for H.264/AVC
	Zhang, Yun 1,3; Jiang, Gangyi 2,3; Yu, Mei 2,3
刊名	JOURNAL OF REAL-TIME IMAGE PROCESSING
	2009-03-01
卷号	4 期号:1 页码:3-12
关键词	H.264/AVC video coding Integer transform Quantization Low-complexity
ISSN号	1861-8200
DOI	10.1007/s11554-008-0098-5
英文摘要	In this paper, an improved quantization technology with low-complexity is presented for H.264/AVC video codec. Multiplication factors of H.264/AVC quantizer are modified. Therefore, it is possible to reduce the bit width of the quantization and substitute large bit-width multiplier by some small bit-width adders without noticeable rate-distortion degradation in integrated circuits (ICs) design. Quantization error introduced by the modified multiplication factors is not only theoretically but also experimentally analyzed. Quantizer is optimized on register transfer level of IC design, and under the same cell CMOS technology, about 75.2% area and 76.3% dynamic power consumption are saved in each quantization unit on average compared with original H.264/AVC quantization. Experimental video coding results show that the Bjontegaard delta peak signal-to-noise ratio (PSNR) and Bjontegaard delta bit rate between the improved and original H.264/AVC quantization are very slight, which means that the improved quantization scheme is approximately the same as the original quantization scheme of H.264/AVC in rate-distortion performance.
资助项目	Natural Science Foundation of China[60672073] ; Program for New Century Excellent Talents in University[NCET-06-0537] ; Natural Science Foundation of Ningbo[2007A610037]
WOS研究方向	Computer Science ; Engineering ; Imaging Science & Photographic Technology
语种	英语
出版者	SPRINGER HEIDELBERG
WOS记录号	WOS:000283782200002
内容类型	期刊论文
源URL	[http://119.78.100.204/handle/2XEOYT63/11646]
专题	中国科学院计算技术研究所期刊论文_英文
通讯作者	Jiang, Gangyi
作者单位	1.Chinese Acad Sci, Grad Sch, Beijing 100080, Peoples R China 2.Ningbo Univ, Fac Informat Sci & Engn, Ningbo 315211, Zhejiang, Peoples R China 3.Chinese Acad Sci, Inst Comp Technol, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Yun,Jiang, Gangyi,Yu, Mei. Low-complexity quantization for H.264/AVC[J]. JOURNAL OF REAL-TIME IMAGE PROCESSING,2009,4(1):3-12.
APA	Zhang, Yun,Jiang, Gangyi,&Yu, Mei.(2009).Low-complexity quantization for H.264/AVC.JOURNAL OF REAL-TIME IMAGE PROCESSING,4(1),3-12.
MLA	Zhang, Yun,et al."Low-complexity quantization for H.264/AVC".JOURNAL OF REAL-TIME IMAGE PROCESSING 4.1(2009):3-12.