Efficient Prediction Structure for Key Pictures in Multiview Video Coding

Compared to simulcast, the utilization of inter-view prediction at key pictures can dramatically improve the compression efficiency of multiview video coding (MVC). The reconstructed key picture in previous adjacent view is used as the inter-view reference picture of the key picture in the current coding view. The efficiency of inter-view prediction may deteriorate due to the existence of mismatch between views. An efficient prediction structure for key pictures is proposed by introducing multiple reference pictures prediction scheme. Experimental results show that average gains of 0.219dB can be achieved for key pictures compared to the reference prediction structure of MVC.