Title :
A distributed JPEG2000 coding algorithm based on mobile agent
Author :
Zhixing, Liu ; Jing, Zhang ; Li, Zhuo
Author_Institution :
Signal & Inf. Process. Lab., Beijing Univ. of Technol., Beijing, China
Abstract :
A distributed JPEG2000 coding algorithm based on mobile agent is proposed. The network nodes in wireless sensor network (WSN) have limited calculation capability and energy. In order to realize image compression and transmission in WSN, the main contributions of our algorithm are that: (1) a distributed discrete wavelet transform (DWT) in JPEG2000 is utilized. (2) Post-compression rate-distortion (PCRD) optimization algorithm based on mobile agent is proposed for rate control. Simulation results show that the proposed algorithm has better coding performance. Especially, it can effectively balance network energy consumption and prolong the network lifetime.
Keywords :
data compression; discrete wavelet transforms; image coding; wireless sensor networks; WSN; distributed JPEG2000 coding algorithm; distributed discrete wavelet transform; image compression; image transmission; mobile agent; network energy consumption; network lifetime; post-compression rate-distortion optimization algorithm; wireless sensor network; Data communication; Discrete wavelet transforms; Energy consumption; Image coding; Mobile agents; Parallel processing; Rate-distortion; Streaming media; Transform coding; Wireless sensor networks; DWT; PCRD; WSN; distributed JPEG2000; mobile agent;
Conference_Titel :
Wireless Communications & Signal Processing, 2009. WCSP 2009. International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-4856-2
Electronic_ISBN :
978-1-4244-5668-0
DOI :
10.1109/WCSP.2009.5371600
