Title :
JPEG2000 high-speed progressive decoding scheme
Author :
Sugita, Hiroaki ; Minh, Vu Quang ; Masuzaki, Takahiko ; Tsutsui, Hiroshi ; Izumi, Tomonori ; Onoye, Takao ; Nakamura, Yukihiro
Author_Institution :
Kyoto Univ., Aichi, Japan
Abstract :
An efficient scheme for JPEG2000 progressive decoding is proposed, which is capable of handling image codestreams with SNR progressiveness. In order to avoid processing the same codestream data more than once when decoding SNR progressive images, a pair of techniques are introduced in our decoding scheme; reusing of intermediary decoded data and differential IDWT. Comprehensive evaluation of our scheme demonstrating that with 20% increase of required memory size, more than 40% of computational costs can be reduced in comparison with conventional (non-progressive) decoding scheme.
Keywords :
data compression; decoding; discrete wavelet transforms; image coding; standards; JPEG2000; SNR progressiveness; codestream data; differential IDWT; high-speed progressive decoding; image codestreams; intermediary decoded data; memory size; progressive images; Computational efficiency; Decoding; Digital cameras; Image coding; Image quality; Image reconstruction; Image resolution; Internet; Pixel; Testing;
Conference_Titel :
Circuits and Systems, 2004. ISCAS '04. Proceedings of the 2004 International Symposium on
Print_ISBN :
0-7803-8251-X
DOI :
10.1109/ISCAS.2004.1328886
