Title :
A scalable wavelet image coding scheme using multi-stage pruned tree-structured vector quantization
Author :
Jafarkhani, Hamid ; Farvardin, Nariman
Author_Institution :
Dept. of Electr. Eng., Maryland Univ., College Park, MD, USA
Abstract :
A hierarchical pruned tree-structured vector quantizer (PTSVQ) employing multi-stage PTSVQ´s is introduced to encode image wavelet coefficients. The result is a low-complexity and scalable image coding system. The effects of non-square selection of the block sizes and normalization on the performance of the system are investigated
Keywords :
image coding; rate distortion theory; transform coding; tree data structures; vector quantisation; wavelet transforms; hierarchical pruned tree-structured vector quantizer; low-complexity system; multistage pruned tree-structured vector quantization; non-square block sizes selection; normalization effect; rate distortion performance; scalable wavelet image coding scheme; Arithmetic; Bit rate; Discrete wavelet transforms; Educational institutions; Filter bank; Frequency; Image coding; Rate-distortion; Vector quantization; Wavelet coefficients;
Conference_Titel :
Image Processing, 1995. Proceedings., International Conference on
Conference_Location :
Washington, DC
Print_ISBN :
0-8186-7310-9
DOI :
10.1109/ICIP.1995.537585
