VLSI design of a DWT/modified efficient SPIHT based image codec

Win Bin Huang, Yuan Jui Chang, Alvin W.Y. Su, Yau Hwang Kuo

研究成果: Conference contribution

3 引文 斯高帕斯(Scopus)

摘要

Set Partitioning in Hierarchical Trees (SPIHT) is a highly efficient technique for compressing Discrete Wavelet Transform (DWT) decomposed images. Though its compression efficiency is a little less than famous Embedded Block Coding with Optimized Truncation (EBCOT) adopted by JPEG2000, a codec standard for still images, SPIHT has a straightforward coding procedure and requires no tables. These make SPIHT a more appropriate algorithm for hardware implementation. In this paper, a modified SPIHT algorithm is presented. The modifications include a simplification of coefficient scanning process, a 1-D addressing method instead of the original 2-D arrangement for wavelet coefficients and a fixed memory allocation for the data lists instead of a dynamic allocation required in the original SPIHT. Though distortion is slightly increased, it enjoys an extremely fast throughput and easier hardware implementation. The gate counts of a 16-by-16 DWT/IDWT and a modified SPIHT/Inv-SPIHT are 12,458 and 5,758 respectively. A complete image codec is also provided.

原文English
主出版物標題ICICS-PCM 2003 - Proceedings of the 2003 Joint Conference of the 4th International Conference on Information, Communications and Signal Processing and 4th Pacific-Rim Conference on Multimedia
發行者Institute of Electrical and Electronics Engineers Inc.
頁面248-252
頁數5
ISBN(電子)0780381858, 9780780381858
DOIs
出版狀態Published - 2003
事件Joint Conference of the 4th International Conference on Information, Communications and Signal Processing and 4th Pacific-Rim Conference on Multimedia, ICICS-PCM 2003 - Singapore, Singapore
持續時間: 2003 十二月 152003 十二月 18

出版系列

名字ICICS-PCM 2003 - Proceedings of the 2003 Joint Conference of the 4th International Conference on Information, Communications and Signal Processing and 4th Pacific-Rim Conference on Multimedia
1

Other

OtherJoint Conference of the 4th International Conference on Information, Communications and Signal Processing and 4th Pacific-Rim Conference on Multimedia, ICICS-PCM 2003
國家/地區Singapore
城市Singapore
期間03-12-1503-12-18

All Science Journal Classification (ASJC) codes

  • 訊號處理
  • 媒體技術
  • 電腦網路與通信

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