NDLI: The same-level subbands correlation removed based SPIHT image coding algorithm

Content Provider	IEEE Xplore Digital Library
Author	Feng Sun Jin-Peng He
Copyright Year	2007
Description	Author affiliation: Harbin Eng. Univ., Harbin (Feng Sun; Jin-Peng He)
Abstract	A new SPIHT (set partitioning in hierarchical trees) image compression-coding algorithm based on the same-level subbands correlation removed (SCR-SPIHT) is presented. The SCR-SPIHT disposes the lowest-frequency subband and the high-frequency subbands respectively. Firstly, code the lowest-frequency subband using DPCM (Differential Pulse Code Modulation). Secondly, define the conception of Correlation Node according to the correlation of the nonsignificant coefficients in the same-Level high-frequency subbands and the same high-frequency sub- band, and the extended space orientation tree based on the Correlation Node is constructed. Here, the Correlation Node is composed of four adjacent pixels of' 2 times 2 in the same subbands and eight adjacent pixels of 2 times 2 times 2 in the same location of the same-Level subbands. The symbols of EZW (Embedded Zero-tree Wavelet) and the new symbol based on EZW were applied to the extended space orientation tree, and the three lists of SPIHT (LIS, LIP, and LSP) are substituted with two lists of pixel states, which saved the memory of program. Simulation experiments showed that this algorithm not only saved more coding
Starting Page	163
Ending Page	168
File Size	245810
Page Count	6
File Format	PDF
ISBN	9781424410651
DOI	10.1109/ICWAPR.2007.4420656
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-11-02
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	extended space orientation tree EZW Wavelet analysis Partitioning algorithms correlative node Pulse modulation SPIHT Image coding Image analysis SCR-SPIHT Space technology Signal processing algorithms Signal analysis Pattern analysis Modulation coding
Content Type	Text
Resource Type	Article

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