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Information 2017, 8(1), 26; doi:10.3390/info8010026

An Image Compression Scheme in Wireless Multimedia Sensor Networks Based on NMF

1
,
1,2,3,* , 1,2,3
and
1,2,3
1
School of Computer, Nanjing University of Posts and Telecommunications, Nanjing 210003, China
2
Jiangsu High Technology Research Key Laboratory for Wireless Sensor Networks, Nanjing University of Posts and Telecommunications, Nanjing 210003, China
3
Key Laboratory of Broadband Wireless Communication and Sensor Network Technology, Ministry of Education, Nanjing 210003, China
*
Author to whom correspondence should be addressed.
Academic Editor: Willy Susilo
Received: 14 December 2016 / Accepted: 7 February 2017 / Published: 24 February 2017
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Abstract

With the goal of addressing the issue of image compression in wireless multimedia sensor networks with high recovered quality and low energy consumption, an image compression and transmission scheme based on non-negative matrix factorization (NMF) is proposed in this paper. First, the NMF algorithm theory is studied. Then, a collaborative mechanism of image capture, block, compression and transmission is completed. Camera nodes capture images and send them to ordinary nodes which use an NMF algorithm for image compression. Compressed images are transmitted to the station by the cluster head node and received from ordinary nodes. The station takes on the image restoration. Simulation results show that, compared with the JPEG2000 and singular value decomposition (SVD) compression schemes, the proposed scheme has a higher quality of recovered images and lower total node energy consumption. It is beneficial to reduce the burden of energy consumption and prolong the life of the whole network system, which has great significance for practical applications of WMSNs. View Full-Text
Keywords: wireless multimedia sensor network; image compression; non-negative matrix factorization; node collaboration wireless multimedia sensor network; image compression; non-negative matrix factorization; node collaboration
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Kong, S.; Sun, L.; Han, C.; Guo, J. An Image Compression Scheme in Wireless Multimedia Sensor Networks Based on NMF. Information 2017, 8, 26.

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