Robust Wireless Transmission of Regions of Interest in JPEG2000 (WA-L4)

Author(s) : Victor Sanchez (Dept. of EE; Univ. of Alberta, Canada) Mrinal Mandal (Dept. of EE; Univ. of Alberta, Canada) Anup Basu (Dept. of CS; Univ. of Alberta, Canada)

Abstract : 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.

Menu