... 率失真模型[gap=1541]Key words: scalable video coding; rate control; rate distortion optimization; rate distortion model...
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The two basic component of rate-distortion model based on Lagrange multiplier in video coding are distortion and rate.
视频通信中的基于拉格朗日乘子法的率失真模型的两个基本组成部分是失真度和比特率。
参考来源 - H.264/AVC中多参考帧下的失真度估算算法In the first stage, a coarse QP is used for motion estimation and RDO. Based on the coding results of this stage, the relatedρ-domain R-D model is constructed.
算法第一步对当前帧的所有宏块进行编码,根据编码结果建立当前帧的ρ域率失真模型。
参考来源 - H.264/AVC视频编码码率控制技术研究Therefore, the proposed BER model can be used in joint source-channel coding, end-to-end R-D optimization and distortion prediction.
该模型对研究信源信道联合编码、端到端的率失真模型及失真预测有着重要的意义。
参考来源 - 视频编码功率率失真模型及低复杂度算法研究Experimental results illustrate this model is superior to the rate-distortion model in pyramidal dead zone lattice vector quantization.
实验结果表明该模型优于带有死区的塔式格型矢量量化中的比特率失真模型。
参考来源 - 基于方向滤波器和小波变换的图像编码·2,447,543篇论文数据，部分数据来源于NoteExpress
通常码率控制算法使用一定的率失真模型来决策量化参数从而控制码率。
Generally, the rate distortion model is employed to compute quantization parameter for the controlling bit rate.
实验结果表明该模型优于带有死区的塔式格型矢量量化中的比特率失真模型。
Experimental results illustrate this model is superior to the rate-distortion model in pyramidal dead zone lattice vector quantization.
视频通信中的基于拉格朗日乘子法的率失真模型的两个基本组成部分是失真度和比特率。
The two basic component of rate-distortion model based on Lagrange multiplier in video coding are distortion and rate.
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