Title :
Clustering SPIHT output bits for wireless communications
Author :
Fang, Jiunn-Tsair ; Shyu, Woei-Luen ; Wu, Cheng-Shong
Author_Institution :
Dept. of Electr. Eng., Nat. Chung Cheng Univ., Chia-Yi, Taiwan
fDate :
1/23/2003 12:00:00 AM
Abstract :
The importance of SPIHT output bits is quantified in bit error sensitivity (BES). Further, C-SPIHT is proposed to cluster output bits so that different bit-clusters have distinct but similar BES. Under wireless communications, this property helps to design unequal error protection. A fixed-length coding format is also adopted to improve error-resilience.
Keywords :
error statistics; image coding; radiocommunication; visual communication; BES; C-SPIHT; SPIHT output bits; bit error sensitivity; bit-clusters; clustering SPIHT; error-resilience; fixed-length coding format; hierarchical trees; image transmission; output bits clustering; set partitioning; unequal error protection; wireless communications;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20030175
