Title :
Unequal error protection of SPIHT encoded image bit streams
Author :
Alatan, A. Aydin ; Zhao, Minyi ; Akansu, Ali N.
Author_Institution :
Dept. of Electr. & Comput. Eng., New Jersey Inst. of Technol., Newark, NJ, USA
fDate :
6/1/2000 12:00:00 AM
Abstract :
A derivative of the set partitioning into hierarchical trees (SPIHT) image coding method, which generates substreams with different error-resilience properties, is proposed. By dividing the image bit stream into three classes, substreams with different immunity properties are obtained. The unequal protection of these substreams with different channel coding rates improves the overall performance of the method against channel errors. Simulation results show the superiority of the proposed method over some of the state-of-the-art methods.
Keywords :
channel coding; convolutional codes; data compression; digital simulation; image coding; transform coding; trees (mathematics); wavelet transforms; SPIHT encoded image bit streams; channel coding rates; channel errors; embedded zero-tree wavelet; error-resilience properties; image bit stream; image coding; immunity properties; performance; rate compatible convolutional codes; set partitioning into hierarchical trees; simulation results; substreams; unequal error protection; Automatic repeat request; Error correction codes; Forward error correction; Image coding; Image reconstruction; Protection; Rate-distortion; Resilience; Robustness; Streaming media;
Journal_Title :
Selected Areas in Communications, IEEE Journal on
