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Proceedings Paper

Realization of 3-D DWT-SPIHT video compression algorithm
Author(s): Sheng Xu; Bo Hu; Jia Gao
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Paper Abstract

Recently, an application of the state-of-the-art SPIHT (Set Partitioning In Hierarchical Trees) algorithm to video sequences 3-D DWT-SPIHT, by using 3-D wavelet and 3-D spatio-temporal dependent trees has proved its efficiency and its real-time capability in the lossy compression of video. However, the basic SPIHT algorithm uses dynamic data structures and requires a very large memory that makes a hardware realization difficult. In this paper, we present an absolutely new approach to partition the wavelet image coefficients into 3D radial tree groups which can be independently processed with an embedded coder. As a result, the memory requirement is drastically reduced. Using the proposed memory-efficient algorithm, we have successfully achieved a real-time implementation of 3-D DWT-SPIHT video compression algorithm using DSP chip. And our experimental results show that the algorithm meets common requirement of real-time video coding and is proven to be a practical and efficient hardware solution.

Paper Details

Date Published: 24 June 2005
PDF: 8 pages
Proc. SPIE 5960, Visual Communications and Image Processing 2005, 59605P (24 June 2005); doi: 10.1117/12.633367
Show Author Affiliations
Sheng Xu, Fudan Univ. (China)
Bo Hu, Fudan Univ. (China)
Jia Gao, Fudan Univ. (China)


Published in SPIE Proceedings Vol. 5960:
Visual Communications and Image Processing 2005
Shipeng Li; Fernando Pereira; Heung-Yeung Shum; Andrew G. Tescher, Editor(s)

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