Title :
SPIHT video coder
Author :
Karlekar, Jayashree ; Desai, U.B.
Author_Institution :
Dept. of Electr. Eng., Indian Inst. of Technol., Bombay, India
Abstract :
We propose a new video coding scheme based on discrete wavelet transform (DWT), as it provides a better way to address scalability functionalities, than MPEG-2. To code wavelet coefficients efficiently, we use set partitioning in hierarchical trees (SPIHT) and adaptive arithmetic coding algorithms. Motion compensation (MC) is done in spatial domain to remove temporal redundancy present between frames. To avoid blocking artifacts caused by block motion compensation, overlapping block motion compensation (OBMC) is done. The proposed video encoder is compared with MPEG-2
Keywords :
adaptive codes; arithmetic codes; data compression; discrete wavelet transforms; motion compensation; set theory; transform coding; trees (mathematics); video codecs; video coding; DWT; MPEG-2; SPIHT video coder; adaptive arithmetic coding algorithms; discrete wavelet transform; overlapping block motion compensation; scalability; set partitioning in hierarchical trees; spatial domain; temporal redundancy; video coding; video encoder-decoder; wavelet coefficients coding; Decoding; Discrete wavelet transforms; Energy resolution; Frequency; Motion compensation; Partitioning algorithms; Scalability; Wavelet coefficients; Wavelet domain; Wavelet transforms;
Conference_Titel :
TENCON '98. 1998 IEEE Region 10 International Conference on Global Connectivity in Energy, Computer, Communication and Control
Conference_Location :
New Delhi
Print_ISBN :
0-7803-4886-9
DOI :
10.1109/TENCON.1998.797065
