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	A soft decoding algorithm for binary arithmetic codes
	Wang Xuan ; Xie Ting-jun ; Lu Jian-hua
	2010-05-06 ; 2010-05-06
关键词	Practical/ arithmetic codes binary codes data compression error detection finite state machines image coding image enhancement image reconstruction maximum likelihood decoding maximum likelihood estimation multimedia computing sequential decoding/ soft decoding algorithm binary arithmetic codes multimedia compression schemes coding efficiency channel errors error propagation property arithmetic decoder image reconstruction enhanced image quality JPEG2000 images memoryless sources error detection MAP maximum-a-posteriori probability estimation rule sequential decoding algorithm FSM finite state machine/ B6135C Image and video coding B0240Z Other topics in statistics C5260B Computer vision and image processing techniques C6130M Multimedia C1140Z Other topics in statistics
中文摘要	Arithmetic coding is widely adopted in the state-of-art multimedia compression schemes due to its high coding efficiency. Unfortunately, arithmetic codes are extremely vulnerable to channel errors because of the error propagation property. In this paper, arithmetic decoder is modeled as a finite state machine (FSM), and a sequential decoding algorithm is contrived by utilizing maximum a-posteriori (MAP) estimation rule. The FSM is responsible for a-priori probability estimation and error detection. Simulations with memoryless sources and JPEG2000 images show that the algorithm improves the system performance with reduced sequence error rate and enhanced quality of reconstructed images.
语种	中文 ; 中文
出版者	Chinese Inst. Electron. ; China
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/10913]
专题	清华大学
推荐引用方式 GB/T 7714	Wang Xuan,Xie Ting-jun,Lu Jian-hua. A soft decoding algorithm for binary arithmetic codes[J],2010, 2010.
APA	Wang Xuan,Xie Ting-jun,&Lu Jian-hua.(2010).A soft decoding algorithm for binary arithmetic codes..
MLA	Wang Xuan,et al."A soft decoding algorithm for binary arithmetic codes".(2010).

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