Title :
Faster Progressive Wavelet Coding of Images
Author :
Zhong, Cuixiang ; Huang, Minghe
Author_Institution :
Software Coll., Jiangxi Normal Univ., Nanchang
Abstract :
Progressive wavelet coding of Images (PWC) is a simple and efficient image coding algorithm. It is comparable to the state-of-the-art SPIHT. It is based only on two concepts: (1) data-independent reordering and blocking, and (2) low-complexity independent encoding of each block via adaptive run-length/Rice coding of the bit planes. Therefore PWC allows for progressive image encoding that is scalable both in resolution and bit rate. But its reordering and un-reordering algorithms are very complex and computation speed is limited, so this paper proposes a new reordering and un-reordering algorithm to improve significantly the encoding and decoding speed of PWC, making PWC have wide applications.
Keywords :
image coding; wavelet transforms; Rice coding; adaptive run-length coding; data-independent blocking; data-independent reordering; image coding; low-complexity independent encoding; progressive wavelet coding; reordering algorithm; Computer science; Continuous wavelet transforms; Decoding; Educational institutions; Encoding; Image coding; Image resolution; Software algorithms; Software engineering; Wavelet coefficients; decoding speed; encoding speed; progressive wavelet coding of images; reorder; unreorder;
Conference_Titel :
Computer Science and Software Engineering, 2008 International Conference on
Conference_Location :
Wuhan, Hubei
Print_ISBN :
978-0-7695-3336-0
DOI :
10.1109/CSSE.2008.448