Development and calibration of a low cost wireless camera sensor network

Authors:
Vimal Mehta;Weihua Sheng;Tianzhou Chen;Quan Shi
Affiliations:
School of Electrical and Computer Engineering, Oklahoma State University, Stillwater, OK;School of Electrical and Computer Engineering, Oklahoma State University, Stillwater, OK;School of Computer Science, Zhejiang University, Hangzhou, China;PPG Industries, Inc. Cheswick, PA
Venue:
IROS'09 Proceedings of the 2009 IEEE/RSJ international conference on Intelligent robots and systems
Year:
2009

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Abstract

In camera sensor network research, physical camera sensor network platforms with low power and low cost are needed for testing and validating algorithms. It is also necessary that the camera nodes be calibrated precisely. In this work, we first develop and evaluate a low power and low cost wireless camera sensor network platform. The camera sensor nodes in this platform transmit a grayscale image over a wireless channel to a master control station. Then we propose a simple, light-weight algorithm to perform distributed calibration of the camera sensor nodes. The camera sensor nodes use their imaging abilities in collaboration with a cooperative moving target to determine their own positions and orientations. The proposed algorithm requires simple arithmetic calculations and hence it can be realized on low power processors. This calibration algorithm has been implemented and evaluated on the developed physical camera sensor network platform.