Non-Causal Video Encoding Method of P-Frame

In this paper, the feasibility and efficiency of noncausal prediction in a P-frame is examined, and based on the findings, a new P-frame coding scheme is proposed. Motioncompensated inter-frame prediction, which has been used widely in low-bit-rate television coding, is an efficient method to reduce the temporal redundancy in a sequence of video signals. Therefore, the proposed scheme combines motion compensation with non-causal prediction based on an interpolative, but not Markov, representation. However, energy dispersion occurs in the scheme as a result of the interpolative prediction transform matrix being non-orthogonal. To solve this problem, we have introduced a new conditional pel replenishment method. On the other hand, Rotation Scanning is also applied as feedback quantization is the quantizer in this paper. Simulation results show that the proposed coding scheme achieves an approximate 0.3–2 dB improvement when the entropy is similar to the traditional hybrid coding method.