Title :
Linear-translate constrained storage VQ for VSPIHT wavelet image compression
Author :
Mukherjee, Dipankar ; Mitra, Sanjit K.
Author_Institution :
Hewlet Packard Labs., Palo Alto, CA, USA
Abstract :
A new constrained storage VQ (CSVQ) structure based on linear transforms and translates of a common root codebook is proposed. The new VQ structure, named LT-CSVQ (linear translate CSVQ) acts as a building block for multistage VQ implementations (LT-CS-MSVQ), and significantly reduces storage requirements from that required in tree-multistage VQ implementations. LT-CS-MSVQ is most appropriate for medium rate multistage VQ implementations, and is applied to the previously proposed vector enhancement of Said and Pearlman´s (1996) set partitioning in hierarchical trees (SPIHT) image coder named VSPIHT
Keywords :
image coding; quantisation (signal); set theory; transform coding; trees (mathematics); vector quantisation; wavelet transforms; LT-CS-MSVQ; LT-CSVQ; VSPIHT wavelet image compression; codebook; constrained storage VQ; encoding complexity; linear transforms; linear translate CSVQ; linear-translate constrained storage VQ; medium rate multistage VQ; multistage VQ; set partitioning in hierarchical trees; storage requirements reduction; Classification tree analysis; Ear; Image coding; Image storage; Laboratories; Lattices; Milling machines; Partitioning algorithms; Rate-distortion; Vectors;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2001. Proceedings. (ICASSP '01). 2001 IEEE International Conference on
Conference_Location :
Salt Lake City, UT
Print_ISBN :
0-7803-7041-4
DOI :
10.1109/ICASSP.2001.941269
