A Hybrid Image Coder Based on SPIHT Algorithm with Embedded Block Coding(Image)

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概要

• 論文の詳細を見る

• Embedded zero-tree coding in wavelet domain has drawn a lot of attention for image compression applications. Among noteworthy zero-tree algorithms is the set partitioning in hierarchical trees (SPIHT) algorithm. For images with textures, high frequency wavelet coefficients are likely to become significant after a few scan passes of SPIHT, and therefore the coding results are often insufficient. It is desirable that the low frequency and high frequency components of an image are coded using different strategies. In this paper, we propose a hybrid algorithm using the SPIHT and EBC (embedded block coding) to code low frequency and high frequency wavelet coefficients, respectively; the intermediate coding results of low frequency coefficients are used to facilitate the coding operation of high frequency coefficients. Experimental results show that the coding performance can be significantly improved by the hybrid SPIHT-EBC algorithm.

• 社団法人電子情報通信学会の論文
• 2007-12-01

著者

• Sung Tze‐yun

  Department Of Microelectronics Engineering Chung Hua University

• Sung Tze-yun

  Department Of Microelectronics Engineering Chung Hua University

• HSIN Hsi-Chin

  Department of Computer Science and Information Engineering, National United University

• Hsin Hsi‐chin

  National United Univ. Miaoli Twn

• Hsin Hsi-chin

  Department Of Computer Science And Information Engineering National United University

関連論文

• Adaptive Selection and Rearrangement of Wavelet Packets for Quad-Tree Image Coding
• A Hybrid Image Coder Based on SPIHT Algorithm with Embedded Block Coding(Image)
• Fixed-Point Error Analysis of CORDIC Arithmetic for Special-Purpose Signal Processors(Digital Signal Processing)
• An Efficient Rearrangement of Wavelet Packet Coefficients for Embedded Image Coding Based on SPIHT Algorithm(Digital Signal Processing)

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