Title :
Robust wireless transmission of regions of interest in JPEG2000
Author :
Sanchez, V. ; Mandal, M. ; Basu, Anup
Author_Institution :
Dept. of Electr. & Comput. Eng., Alberta Univ., Edmonton, Alta., Canada
Abstract :
In this paper, we present a technique to robustly transmit regions of interest in the JPEG2000 framework. The technique assumes a prioritized region-of-interest coding and optimally assigns channel protection to the coded data according to the importance of every packet in the final bit-stream. The mean energy of the transform coefficients contained in a packet and the distance of a packet from the region of interest determine the importance of every packet. The channel protection is achieved by means of a concatenation of a cyclic redundancy check outer coder and an inner rate-compatible convolutional coder. Simulation results performed over a Rayleigh fading channel show an improvement in the visual quality of the reconstructed images.
Keywords :
Rayleigh channels; channel coding; concatenated codes; convolutional codes; cyclic redundancy check codes; data compression; image coding; image reconstruction; radiocommunication; transform coding; JPEG2000 framework; Rayleigh fading channel; bit-stream; channel protection; concatenation code; cyclic redundancy check outer coder; data coding; image reconstruction; inner rate-compatible convolutional coder; regions of interest coding; transform coefficient; visual quality; wireless transmission; Convolutional codes; Cyclic redundancy check codes; Decoding; Fading; Image coding; Image databases; Image reconstruction; Protection; Resilience; Robustness;
Conference_Titel :
Image Processing, 2004. ICIP '04. 2004 International Conference on
Print_ISBN :
0-7803-8554-3
DOI :
10.1109/ICIP.2004.1421608