Title :
Comparison of residual compression methods in motion compensated video
Author :
Poh, W. ; Monro, D.M.
Author_Institution :
Sch. of Electron. & Electr. Eng., Univ. of Bath, UK
Abstract :
In this paper, we compare the objective performance of several algorithms for coding motion compensated residuals, including the wavelet transform, matching pursuits and an improved embedded DCT-based coding method. A motion-compensated prediction-based approach with overlapped block matching compensation (OBMC) is used in all systems in the evaluation. The results show that matching pursuits outperforms transform-based methods by 0.1-1.0 dB in PSNR. The embedded DCT coder usually outperforms the wavelet-based SPIHT-AC in the examples considered, and SPIHT is usually better than JPEG 2000.
Keywords :
data compression; discrete cosine transforms; iterative methods; motion compensation; prediction theory; transform coding; video coding; wavelet transforms; OBMC; PSNR; coding motion compensated residuals; discrete cosine transform; embedded DCT-based coding method; matching pursuits; motion compensated video; overlapped block matching compensation; residual compression methods; video coding; wavelet transform; Codecs; Discrete cosine transforms; Image coding; Matching pursuit algorithms; Pursuit algorithms; Transform coding; Video coding; Video compression; Wavelet domain; Wavelet transforms;
Conference_Titel :
Multimedia Signal Processing, 2002 IEEE Workshop on
Print_ISBN :
0-7803-7713-3
DOI :
10.1109/MMSP.2002.1203260
