Error resilient image communication with chaotic pixel interleaving for wireless camera sensors
Résumé
New applications of wireless sensor networks require vision capabilities. Considering the high loss rates found in sensor networks, and the limited hardware resources of current sensor nodes, low-complexity robust image transmission must be implemented, avoiding as much as possible the need for retransmission or redundancy. In this paper we propose a pixel interleaving scheme based in Torus Automorphisms, thus, neighboring pixels are transmitted in different packets. Hence, if packets are lost, we have a high probability of retrieving enough information to obtain an approximation of the original value. Results show an increase of the image quality in comparison with a sequential raw image transmission approach, while preserving similar energy consumptions, time and low-complexity.
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