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	High speed, low memory image coding using zero blocks of wavelet coefficients (EI CONFERENCE)
	Yang W.-G. ; Zhang T. ; Zhang J.-D.
	2007
会议名称	4th International Conference on Image and Graphics, ICIG 2007, August 22, 2007 - August 24, 2007
会议地点	Chengdu, China
关键词	We propose a new high speed low memory SPECK image coder based on the form of block-unit states called LBUS-SPECK which uses the form of block-unit states and the form of block exponents to substitute LIS and LSP of SPECK. A form of block-unit states is introduced to store the significance flag of coefficients and the value of the block-unit exponents. A form of block exponents is introduced to store the block exponents which are used to represent the max coefficient in a decomposed block. A new block depth-finding strategy is developed for searching insignificant sets at sorting stage. Experimental results show that the obtained PSNR values for the decoded images are very close to those of SPECK algorithm and the memory consumption is reduced by 9 times the encoding timing is saved about 15%. Comparing with SPECK algorithm this algorithm not only has better performance of the decoded images but also is easy to implement especially it provides an efficient way for hardware implementation of wavelet embedded block coding. 2007 IEEE.
页码	183-188
收录类别	EI
内容类型	会议论文
源URL	[http://ir.ciomp.ac.cn/handle/181722/33088]
专题	长春光学精密机械与物理研究所_中科院长春光机所知识产出_会议论文
推荐引用方式 GB/T 7714	Yang W.-G.,Zhang T.,Zhang J.-D.. High speed, low memory image coding using zero blocks of wavelet coefficients (EI CONFERENCE)[C]. 见:4th International Conference on Image and Graphics, ICIG 2007, August 22, 2007 - August 24, 2007. Chengdu, China.

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