Wavelet Video Coding Based on the Optimal Bit Allocation

JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM ›› 1999, Vol. 22 ›› Issue (1): 62-65.

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Wavelet Video Coding Based on the Optimal Bit Allocation

Lin Gang Liu Zemin

School of Telecommunication Engineering, Beijing University of Posts and Telecommunications, Beijing 100876

Received:1998-03-27 Online:1999-01-10

Abstract

Abstract: A new scheme of video coding based on the optimal bit allocation is presented.
The original image sequence is segmented into groups first, and each group is carried out the time-
dimension and two spatial-dimensions wavelet decomposition. When quantizing, we propose an extension of setpartition in hierarchical trees(SPIHT) algorithm. Our simulation demonstrates that this method can improve the coding efficiency.

Key words: video coding, wavelet transform, set partition in hierarchical trees, bit allocation

CLC Number:

TN911.21

Lin Gang Liu Zemin. Wavelet Video Coding Based on the Optimal Bit Allocation[J]. JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM, 1999, 22(1): 62-65.

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Wavelet Video Coding Based on the Optimal Bit Allocation

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