X树图像编码

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Abstract This paper presents a new scheme of wavelet image coding, X-tree. An X-tree is a spatial hierarchical tree whose all nodes are 0 except the root node. It is the generalization of the zero tree. Based on the X-tree scheme, two new coding algorithms, the embedded X-tree approach and the general X-tree approach are proposed in the paper. Experimental results show that the coding efficiency of the proposed algorithms are obviously higher than those of the stack-run and the EZW algorithms.

Key words： Wavelet coding Image compression X-tree image coding Embedded coding Stack-run coding

Received: 10 October 2001

PACS:

TN919.8

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	Cai Canhui
	Ding Runtao

Cite this article:

Cai Canhui,Ding Runtao. The X-tree image coding[J]. , 2003, 25(2): 164-170 .

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http://jeit.ie.ac.cn/EN/ OR http://jeit.ie.ac.cn/EN/Y2003/V25/I2/164