Improving the visual performance of S/DISCUS

Wireless multimedia sensor networks (WMSNs) emerge as a solution in wireless unattended video surveillance scenarios. The G-E-M methodology was recently introduced by Czarlinska et al. to address the problem providing protection to visual wireless surveillance systems in the presence of another hostile sensing system. This work builds upon the G-E-M framework by introducing pre- and post-processing stages that reduce decoding errors and visual noise as well as allowing the effective control of bitrate.