%0 Journal Article
%T Novel macro-block layer rate control algorithm for H.264/AVC<br>一种面向H.264/AVC的新型宏块级码率控制算法
%A YANG Heng
%A WANG Qing
%A <br>杨恒
%A 王庆
%J 计算机应用
%D 2006
%I 
%X 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.
%K rate control
%K video compression
%K H
%K 264 coding standard
%K Mean Absolute Transform Quantized Distortion(MATQD)<br>码率控制
%K 视频压缩
%K H.264编码标准
%K 平均绝对变换量化误差
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=831E194C147C78FAAFCC50BC7ADD1732&aid=AB449554685B0C4C&yid=37904DC365DD7266&vid=96C778EE049EE47D&iid=B31275AF3241DB2D&sid=2A46E9718B53247E&eid=CB8F7B3BEDA8D32B&journal_id=1001-9081&journal_name=计算机应用&referenced_num=2&reference_num=12