Research Article
Image Quality Estimation in Wireless Multimedia Sensor Networks: An Experimental Study
@INPROCEEDINGS{10.1007/978-3-642-30376-0_15, author={Pinar Sarisaray Boluk and Kerem Irgan and Sebnem Baydere and A. Harmanci}, title={Image Quality Estimation in Wireless Multimedia Sensor Networks: An Experimental Study}, proceedings={Broadband Communications, Networks, and Systems. 7th International ICST Conference, BROADNETS 2010, Athens, Greece, October 25--27, 2010, Revised Selected Papers}, proceedings_a={BROADNETS}, year={2012}, month={10}, keywords={Image Transmission Wireless Multimedia Sensor Networks WSN TestBed PSNR Estimation Error Concealment Watermarking}, doi={10.1007/978-3-642-30376-0_15} }- Pinar Sarisaray Boluk
Kerem Irgan
Sebnem Baydere
A. Harmanci
Year: 2012
Image Quality Estimation in Wireless Multimedia Sensor Networks: An Experimental Study
BROADNETS
Springer
DOI: 10.1007/978-3-642-30376-0_15
Abstract
Multimedia applications in wireless sensor networks (WMSN) have stringent quality of service (QoS) requirements. In this paper, we study image quality distortions due to packet losses in multi hop WMSN. An experimental simulation and real testbed environment has been setup to estimate the quality of the test images over 30,000 transmissions. Two scenarios are considered: in the first scenario, images are watermarked with their replicas at the source node and an error concealment (EC) algorithm is employed at the sink. In the second scenario, raw images are transmitted without any encoding. The empirical results have revealed that there is a strong correlation between Peak-Signal-To-Noise-Ratio (PSNR) values of the distorted images and packet loss rate of the transmission route (PER). Moreover, the relationship is linear when EC technique is used with an achievement over 25dB PSNR for PER less than 0.6. This correlation is useful when designing QoS based transport schemes.
