Fast and effective intra-frame coding algorithm for H.264/AVC
Minyuan Wu · Journal of Optoelectronics·laser · 2010
The H.264/AVC improves the coding performance by employing the rate distortion optimization(RDO) in intra-frame coding.To achieve the optimal effect,all of the intra prediction modes are calculated,so the computational complexity increases dramatically.In order to reduce the coding time,a fast and effective intra-frame coding algorithm is proposed.The direction error strengths of texture are computed to reduce the number of the prediction modes,and an early termination criterion for early detecting zero-block is proposed to accelerate the coding process.Experimental results show that the proposed algorithm can reduce the encoding time by about 67.2% without sacrifice in terms of video quality and bit rates.