Novel macro-block layer rate control algorithm for H.264/AVC
一种面向H.264/AVC的新型宏块级码率控制算法

To solve the issues of rate control model in H.264,a novel macro-block layer rate control strategy and implementation for H.264 were proposed.Firstly,a new concept of coding complexity measure was presented,so-called Mean Absolute Transform Quantized Distortion(MATQD).Then,the weighted prediction model for MATQD and an improved quadratic R-D model based on MATQD were proposed,respectively.Moreover,the whole procedure of rate control algorithm was proposed,especially when dealing with the allocation of texture bits for current macro-block,MATQD_(ratio) was used to compute the target bit and a weighted prediction model was presented for header bits.The experimental results show that our method is better rate control performance than that of JVT-G012 in JM8.5 in terms of control precision,bit fluctuation and image quality.