Title :
A video coding algorithm based on intraframe and interframe joint prediction of wavelet coefficients
Author :
Desheng, Wang ; Xudong, Zhang
Author_Institution :
Tsinghua Univ., Beijing, China
Abstract :
A novel video coding algorithm based on intraframe and interframe joint prediction in the wavelet domain is described in this paper. We propose a BZT (block zero tree) coding scheme that represents the position of the zero coefficients block efficiently. For the nonzero coefficients block, temporal redundancy is removed using multiresolution motion estimation (MRME). The proposed algorithm improves the coding performance significantly over the baseline MRME technique. In addition, the computational complexity is further reduced
Keywords :
image resolution; motion compensation; motion estimation; prediction theory; tree data structures; video coding; wavelet transforms; BZT coding; block zero tree coding; computational complexity; interframe prediction; intraframe prediction; multiresolution motion estimation; nonzero coefficients block; performance; temporal redundancy; video coding algorithm; wavelet coefficients; zero coefficients block; Computational modeling; Filter bank; Motion estimation; Quantization; Spatial resolution; Video coding; Video compression; Wavelet coefficients; Wavelet domain; Wavelet transforms;
Conference_Titel :
Signal Processing Proceedings, 1998. ICSP '98. 1998 Fourth International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-4325-5
DOI :
10.1109/ICOSP.1998.770324