Title :
Robust image transmission using JPEG2000 and turbo-codes
Author :
Banister, Brian A. ; Belzer, Benjamin ; Fischer, Thomas R.
Author_Institution :
Sch. of Electr. Eng. & Comput. Sci., Washington State Univ., Pullman, WA, USA
fDate :
4/1/2002 12:00:00 AM
Abstract :
A method of combined source and channel coding is described that provides robustness to errors from a binary symmetric channel and uses the JPEG2000 (JP2) image compression standard. The source code rate and channel code rate are jointly optimized to produce a stream of fixed-size channel packets, such that the rate allocation complexity grows O(N/sup 2/) with the number of transmitted packets, N. Punctured turbo codes are used for channel coding, providing strong error protection. The rate allocation scheme presented obtains all necessary information from the JP2 encoder, and does not require image decompression.
Keywords :
code standards; combined source-channel coding; computational complexity; concatenated codes; convolutional codes; data compression; image coding; telecommunication standards; turbo codes; visual communication; JP2 encoder; JPEG2000 image compression standard; binary symmetric channel; channel code rate; combined source and channel coding; error protection; fixed-size channel packets; punctured parallel concatenated convolutional codes; punctured turbo codes; rate allocation complexity; robust image transmission; source code rate; still image transmission; turbo codes; Channel coding; Decoding; Image coding; Image communication; Open systems; Protection; Robustness; Streaming media; Transform coding; Turbo codes;
Journal_Title :
Signal Processing Letters, IEEE
