Realization of 3-D DWT-SPIHT video compression algorithm

Sheng Xu; Bo Hu; Jia Gao

doi:10.1117/12.633367

24 June 2005 Realization of 3-D DWT-SPIHT video compression algorithm

Sheng Xu, Bo Hu, Jia Gao

Proceedings Volume 5960, Visual Communications and Image Processing 2005; 59605P (2005) https://doi.org/10.1117/12.633367
Event: Visual Communications and Image Processing 2005, 2005, Beijing, China

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.

Citation Download Citation

Sheng Xu, Bo Hu, and Jia Gao "Realization of 3-D DWT-SPIHT video compression algorithm", Proc. SPIE 5960, Visual Communications and Image Processing 2005, 59605P (24 June 2005); https://doi.org/10.1117/12.633367

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KEYWORDS

3D video compression

Video compression

3D image processing

Wavelets

Digital signal processing

Video

Computer programming

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