Video Encoding for Wireless Multimedia Sensor Networks: A Review

Wireless multimedia sensor networks (WMSNs) make possible diverse and demanding monitoring and surveillance applications. The WMSNs have to operate with significant energy, memory and processing power constraints. These constraints make video encoding vital but challenging to accomplish. Many approaches have been attempted but each one comes with its shortcomings. In this paper, a framework was developed to compare and contrast different methods for video encoding in WMSNs. This allows both researchers and practitioners to evaluate the different trade-offs that current techniques entail and what research gaps are not being addressed.