Title :
A fast algorithm and hardware implementation for rate-distortion optimization in JPEG2000
Author :
Huai-Yu, Zhuang ; Cheng-Ke, Wu ; Jia-Xian, Deng
Author_Institution :
Nat. Key Lab. of Integrated Service Network, Xidian Univ., Xi´´an
Abstract :
A fast algorithm for T2 encoder in JPEG2000 suitable for hardware implementation is presented in this paper, based on the elaborate analysis of a rate-distortion optimization algorithm. By reducing calculative complexity, the difficulty of hardware implementation for the T2 encoder is reduced, and the parallelizability of the JPEG2000 hardware system is enhanced. The experimental results show that the final code stream is in accordance with the standard format of JPEG2000 and reconstructed image quality decreases little. The system has been implemented on FPGA
Keywords :
code standards; data compression; field programmable gate arrays; image coding; image reconstruction; optimisation; rate distortion theory; FPGA; JPEG2000; T2 encoder; code stream; parallelizability; rate-distortion optimization; reconstructed image quality; Code standards; Discrete wavelet transforms; Equations; Field programmable gate arrays; Hardware; Image coding; Image quality; Image reconstruction; Rate-distortion; Streaming media;
Conference_Titel :
Multimedia and Expo, 2004. ICME '04. 2004 IEEE International Conference on
Conference_Location :
Taipei
Print_ISBN :
0-7803-8603-5
DOI :
10.1109/ICME.2004.1394537
