Title :
A unification framework for tree and block wavelet encoders
Author :
Yin, X.-W. ; Fleury, M. ; Downton, A.C.
Author_Institution :
Dept. of Electron. Syst. Eng., Essex Univ., Colchester, UK
Abstract :
Wavelet transform coefficient encoders are broadly categorized as depending on correlations: across sub-bands through a zerotree, or within sub-bands through a block quad-tree. This paper proposes a unification framework that allows a suitable algorithm to be crafted according to need. An example block-tree algorithm is described in detail, and results show that the performance closely approaches a state-of-the-art encoder, without needing the complexity of arithmetic coding.
Keywords :
block codes; image coding; quadtrees; wavelet transforms; block quad-tree; block wavelet encoder; tree wavelet encoder; unification framework; wavelet transform coefficient encoder; Decoding; Delay; Encoding; Image coding; Pattern recognition; Pixel; Quantization; Testing; Turning; Virtual manufacturing;
Conference_Titel :
Pattern Recognition, 2004. ICPR 2004. Proceedings of the 17th International Conference on
Print_ISBN :
0-7695-2128-2
DOI :
10.1109/ICPR.2004.1334378