A Distributed Image Compression Scheme for Energy Harvesting Wireless Multimedia Sensor Networks As an emerging technology, edge computing will enable traditional sensor networks to be effective and motivate a series of new applications. Meanwhile, limited battery power directly affects the performance and survival time of sensor networks. As an extension application for traditional sensor networks, the energy consumption of Wireless Multimedia Sensor Networks (WMSNs) is more prominent. For the image compression and transmission in WMSNs, consider using solar energy as the replenishment of node energy; a distributed image compression scheme based on solar energy harvesting is proposed. Two level clustering management is adopted. The camera nodenormal node cluster enables camera nodes to gather and send collected raw images to the corresponding normal nodes for compression, and the normal node cluster enables the normal nodes to send the compressed images to the corresponding cluster head node. The reclustering and dynamic adjustment methods for normal nodes are proposed to adjust adaptively the operation mode in the working chain. Simulation results show that the proposed distributed image compression scheme can effectively balance the energy consumption of the network. Compared with the existing image transmission schemes, the proposed scheme can transmit more and higher quality images and ensure the survival of the network.

Robust distributed multiview video compression for wireless camera networks We propose a novel method of exploiting interview correlation among cameras that have overlapping views in order to deliver errorresilient video in a distributed multicamera system. The main focus in this work is on robustness which is imminently needed in a wireless setting. Our system has low encoding complexity, is robust while satisfying tight latency constraints, and requires no intersensor communication. In this work, we build on and generalize PRISM,1 an earlier proposed singlecamera distributed video compression system. Specifically, decoder motion search, a key attribute of singlecamera PRISM, is extended to the multiview setting to include decoder disparity search based on twoview camera geometry. Our proposed system, dubbed PRISMMC (PRISM multicamera), achieved PSNR gains of up to 1.7 dB over a PRISM based simulcast solution in experiments over a wireless channel simulator.