Energy efficient multi-resolution visual surveillance on wireless sensor networks

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Publication Type:

Conference Paper

Source:

Electro Information Technology, 2005 IEEE International Conference on (2005)

Keywords:

battery life, communication energy cost, computerised monitoring, discrete wavelet transform, discrete wavelet transforms, distributed ad hoc sensor network, energy conservation, energy efficient visual surveillance, JPEG scheme, multimedia data, multiresolution visual surveillance, power requirement reduction, reliable monitoring, sensor node, visual sensor, wireless sensor network, wireless sensor networks

Abstract:

Visual surveillance with a distributed ad hoc sensor network enable reliable monitoring and control of a variety of applications that range from civil to military. However, due to the large volume of multimedia data associated with visual sensors, the surveillance scheme has to be architected with a goal of energy conservation and extending life expectancy. In this paper, we briefly discuss the computation and communication energy costs associated with a sensor node and explore the possibilities of extending battery life by choosing to perform local processing. We propose a discrete wavelet transform (DWT) based multi-resolution surveillance schema designed to reduce power requirement. We then compare and contrast the computational and communication power expended by a traditionally used JPEG-based scheme and illustrate the significant power savings achieved by the proposed surveillance system