Underground WMSN distributed video coding based on HVS

DVC is a suitable code scheme to overcome the limited memory capacity and low power consumption of video sensor nodes in Wireless Multimedia Sensor Network (WMSN). To further improve the coding performance, we propose a distributed video coding (DVC) scheme with the human visual system (HVS) which seldom senses any changes below the just noticeable distortion (JND) threshold around a pixel due to their underlying temporal/spatial sensitivity and masking properties. On this view, it is unnecessary to spend parity bits on correcting the un-noticeable signal differences between the original frame and side information. Experimental results show that the proposed scheme can significantly improve the WZ coding efficiency in terms of bit rate having subjective quality performance guaranteed.