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Sensors 2010, 10(8), 7651-7673; doi:10.3390/s100807651

A Reaction-Diffusion-Based Coding Rate Control Mechanism for Camera Sensor Networks

Graduate School of Information Science and Technology, Osaka University, 1-5 Yamadaoka, Suita, Osaka 565-0871, Japan
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Received: 13 April 2010 / Revised: 28 June 2010 / Accepted: 19 July 2010 / Published: 13 August 2010
(This article belongs to the Section Chemical Sensors)

Abstract

A wireless camera sensor network is useful for surveillance and monitoring for its visibility and easy deployment. However, it suffers from the limited capacity of wireless communication and a network is easily overflown with a considerable amount of video traffic. In this paper, we propose an autonomous video coding rate control mechanism where each camera sensor node can autonomously determine its coding rate in accordance with the location and velocity of target objects. For this purpose, we adopted a biological model, i.e., reaction-diffusion model, inspired by the similarity of biological spatial patterns and the spatial distribution of video coding rate. Through simulation and practical experiments, we verify the effectiveness of our proposal. View Full-Text
Keywords: camera sensor network; coding rate control; reaction-diffusion model camera sensor network; coding rate control; reaction-diffusion model
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Yamamoto, H.; Hyodo, K.; Wakamiya, N.; Murata, M. A Reaction-Diffusion-Based Coding Rate Control Mechanism for Camera Sensor Networks. Sensors 2010, 10, 7651-7673.

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