LLEC: An image coder with low-complexity and low-memory requirement

	LLEC: An image coder with low-complexity and low-memory requirement
	Zhao, DB ; Gao, W ; Shan, SG ; Chan, YK
	2001
发表期刊	ADVANCES IN MUTLIMEDIA INFORMATION PROCESSING - PCM 2001, PROCEEDINGS
ISSN	0302-9743
卷号	2195 页码:957-962
摘要	A Low-complexity and Low-memory Entropy Coder (LLEC) for image compression is proposed in this paper. The two key elements in LLEC are zerotree coding and Golomb-Rice codes. Zerotree coding exploits the zerotree structure of transformed coefficients for higher compression efficiency, Golomb-Rice codes are used to code the remaining coefficients in a VLC/VLI manner for low complexity and low memory. The experimental results show that the compression efficiency of DCT- and DWT-based LLEC outperforms baseline JPEG and EZW at the given bit rates, respectively. When compared with SPIHT, LLEC is inferior by 0.3 dB on average for the tested images but superior in terms of computational complexity and memory requirement. In addition, LLEC has other desirable features such as parallel processing support, ROI (Region Of Interest) coding and as a universal entropy coder for DCT and DWT.
收录类别	SCI
语种	英语
WOS研究方向	Computer Science
WOS类目	Computer Science, Information Systems ; Computer Science, Software Engineering ; Computer Science, Theory & Methods
WOS记录号	WOS:000174348000128
出版者	SPRINGER-VERLAG BERLIN
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://119.78.100.204/handle/2XEOYT63/13427
专题	中国科学院计算技术研究所期刊论文_英文
通讯作者	Zhao, DB
作者单位	1.Harbin Inst Technol, Dept Comp Sci, Harbin 150001, Peoples R China 2.Chinese Acad Sci, Inst Comp Technol, Beijing 100080, Peoples R China 3.City Univ Hong Kong, Dept Comp Sci, Hong Kong, Hong Kong, Peoples R China
推荐引用方式 GB/T 7714	Zhao, DB,Gao, W,Shan, SG,et al. LLEC: An image coder with low-complexity and low-memory requirement[J]. ADVANCES IN MUTLIMEDIA INFORMATION PROCESSING - PCM 2001, PROCEEDINGS,2001,2195:957-962.
APA	Zhao, DB,Gao, W,Shan, SG,&Chan, YK.(2001).LLEC: An image coder with low-complexity and low-memory requirement.ADVANCES IN MUTLIMEDIA INFORMATION PROCESSING - PCM 2001, PROCEEDINGS,2195,957-962.
MLA	Zhao, DB,et al."LLEC: An image coder with low-complexity and low-memory requirement".ADVANCES IN MUTLIMEDIA INFORMATION PROCESSING - PCM 2001, PROCEEDINGS 2195(2001):957-962.