A method for coordinating the distributed transmission of imagery

Research output: Contribution to journalArticlepeer-review

31 Scopus citations

Abstract

Distributed imaging using sensor arrays is gaining popularity among various research and development communities. A common bottleneck within such an imaging sensor network is the large resulting data load. In applications for which transmission power and/or bandwidth are constrained, this can drastically decrease the sensor network lifetime. We present an algorithm that efficiently exploits inter- and intrasensor correlation for the purpose of power-constrained distributed transmission of sensor-network imagery. Gains in network lifetime up to 114% are obtained when using the suggested algorithm with lossless compression. Our results also demonstrate that when lossy compression is employed, much larger gains are achieved. For example, when a normalized root-mean-squared error of 0.78% can be tolerated in the received measurements, the network lifetime increases by a factor of 2.8, as compared to the (optimized) lossless case.

Original languageEnglish (US)
Pages (from-to)1705-1717
Number of pages13
JournalIEEE Transactions on Image Processing
Volume15
Issue number7
DOIs
StatePublished - Jul 1 2006

Keywords

  • Distributed information systems
  • Energy management
  • Image communication
  • Routing

ASJC Scopus subject areas

  • Software
  • Computer Graphics and Computer-Aided Design

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