Quantization Parameter Refinement in H.264 through ρ-Domain

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概要

• 論文の詳細を見る

• This letter proposes a new algorithm of refining the quantization parameter in H.264 real-time encoding. In the H.264 encoding, the quantization parameter computed according to the quadratic rate model is not accurate in meeting the target bit rate. In order to make the actual encoded bit rate closer to the target bit rate, ρ-domain rate model is introduced in our proposed quantization parameter refinement algorithm. Simulation results show that the proposed algorithm achieves obvious gain in PSNR and has stabler encoded bit rate compared to Jiangs algorithm.

• （社）電子情報通信学会の論文
• 2008-06-01

著者

• Yang Jing

  Institute Of Image Communication And Information Processing Shanghai Jiao Tong University

• FANG Xiangzhong

  Institute of Communication and Image Processing, Shanghai Jiaotong University

• Yang Jing

  College Of Information Engineering Shanghai Maritime University

• Fang Xiangzhong

  Institute Of Image Communication And Information Processing Shanghai Jiao Tong University

• DONG Yutao

  Institute of Image Communication and Information Processing, Shanghai Jiao Tong University

• Dong Yutao

  Institute Of Image Communication And Information Processing Shanghai Jiao Tong University

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