Title :
An enhancement to MRME techniques for video compression
Author :
Wu, Changqing ; Wang, Zhizhong
Author_Institution :
Dept. of Biomed. Eng., Shanghai Jiaotong Univ., China
Abstract :
The wavelet transform is a valuable tool in video compression because of its flexibility. Zhang and Zafar [1992] proposed a video compression algorithm based on the wavelet transform and multiresolution motion estimation (MRME), but MRME doesn´t consider the aliasing effects caused by downsampling in the transform. In this article, we use a special interpolation filter to remove those effects. The combined MRME techniques greatly improve the coding performance. Experiments also show subjectively pleasing reconstructed pictures
Keywords :
data compression; image reconstruction; motion estimation; video coding; wavelet transforms; MRME techniques; aliasing effects; coding performance; downsampling; interpolation filter; multiresolution motion estimation; reconstructed pictures; video compression; wavelet transform; Discrete wavelet transforms; Filters; Frequency estimation; Image reconstruction; Image storage; Interpolation; Motion estimation; Spatial resolution; Video compression; Wavelet transforms;
Conference_Titel :
Circuits and Systems, 2000. IEEE APCCAS 2000. The 2000 IEEE Asia-Pacific Conference on
Conference_Location :
Tianjin
Print_ISBN :
0-7803-6253-5
DOI :
10.1109/APCCAS.2000.913529
