DocumentCode
3284125
Title
Distributed compression in camera sensor networks
Author
Gehrig, Nicolas ; Dragotti, Pier Luigi
Author_Institution
Dept. of Electr. & Electron. Eng., Imperial Coll., London, UK
fYear
2004
fDate
29 Sept.-1 Oct. 2004
Firstpage
311
Lastpage
314
Abstract
We address the problem of distributed compression in camera sensor networks. Our approach uses some geometrical information in order to estimate the correlation in the visual data. This correlation, which is related to the structure of the plenoptic function, can then be used to reduce the overall transmission rate from the sensors to a common central receiver. Our approach allows for a flexible allocation of the bit-rates amongst the encoders and can be made resilient to a fixed number of occlusions. Finally, we show that our distributed coding approach can be extended to general binary sources. The technique we propose uses linear channel codes and can achieve any point of the Slepian-Wolf achievable rate region.
Keywords
cameras; channel coding; correlation methods; data compression; hidden feature removal; image coding; wireless sensor networks; Slepian-Wolf achievable rate region; camera sensor network; common central receiver; distributed coding approach; distributed compression; flexible allocation; general binary source; linear channel code; plenoptic function; transmission rate; Compression algorithms; Computer networks; Digital cameras; Educational institutions; Image coding; Intelligent networks; Intelligent sensors; Layout; Signal processing; Wireless sensor networks;
fLanguage
English
Publisher
ieee
Conference_Titel
Multimedia Signal Processing, 2004 IEEE 6th Workshop on
Print_ISBN
0-7803-8578-0
Type
conf
DOI
10.1109/MMSP.2004.1436555
Filename
1436555
Link To Document