Title :
Quadtree-guided wavelet image coding
Author :
Teng, Chia-Yuan ; Neuhoff, David L.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Michigan Univ., Ann Arbor, MI, USA
Abstract :
A hybrid of wavelet and quadtree image coding is introduced. It uses a quadtree predictive coding technique, having good rate/fidelity performance and very low complexity, to encode the baseband wavelet coefficients. The resulting quadtree decomposition of the baseband is then used to guide the encoding of higher frequency subbands, by indicating which of their coefficients require encoding and which do not. The result is a coding method with performance comparable to those of the best known wavelet coders, but with less complexity
Keywords :
computational complexity; image coding; prediction theory; quadtrees; transform coding; wavelet transforms; baseband wavelet coefficients; complexity; performance; quadtree decomposition; quadtree predictive coding technique; quadtree-guided wavelet image coding; Baseband; Discrete wavelet transforms; Encoding; Filtering; Frequency; Image coding; Low pass filters; PSNR; Predictive coding; Wavelet coefficients;
Conference_Titel :
Data Compression Conference, 1996. DCC '96. Proceedings
Conference_Location :
Snowbird, UT
Print_ISBN :
0-8186-7358-3
DOI :
10.1109/DCC.1996.488346
