Title :
An analytical treatment of channel-induced distortion in run length coded subbands
Author :
Garcia-Frias, Javier ; Villasenor, John D.
Author_Institution :
Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA
Abstract :
We present an analytical framework for describing the distortion in an image communication system that includes wavelet transformation, uniform scalar quantization, run length coding, entropy coding, forward error control, and transmission over a binary symmetric channel. Simulations performed using ideal source models as well as real image subbands confirm the accuracy of the distortion description. The resulting equations can be used to choose channel code rates in an unequal error protection scheme in which subbands are protected according to their importance
Keywords :
BCH codes; channel coding; entropy codes; forward error correction; image coding; runlength codes; source coding; transform coding; visual communication; wavelet transforms; BCH codes; analytical framework; binary symmetric channel; channel code rates; channel-induced distortion; entropy coding; forward error control; ideal source models; image coding; image communication system; real image subbands; run length coded subbands; run length coding; unequal error protection scheme; uniform scalar quantization; wavelet transform; Channel coding; Discrete wavelet transforms; Entropy coding; Error correction; Error correction codes; Image analysis; Image coding; Image communication; Quantization; Wavelet analysis;
Conference_Titel :
Data Compression Conference, 1997. DCC '97. Proceedings
Conference_Location :
Snowbird, UT
Print_ISBN :
0-8186-7761-9
DOI :
10.1109/DCC.1997.581965