Adaptive bit allocation scheme for rate control in high efficiency video coding with initial quantization parameter determination
作者:
Highlights:
• The relationship between coding bit rate and texture complexity is represented by a linear function.
• We develop a more accurate texture complexity measurement model.
• We develop an adaptive bit allocation scheme for rate control in HEVC.
• The initial quantization parameter depends on the bits per pixel and the video contents.
• An adaptive quantization parameter clip range determination scheme to achieve the visual quality smoothness and prevent the encoder buffer from underflow and overflow.
摘要
Highlights•The relationship between coding bit rate and texture complexity is represented by a linear function.•We develop a more accurate texture complexity measurement model.•We develop an adaptive bit allocation scheme for rate control in HEVC.•The initial quantization parameter depends on the bits per pixel and the video contents.•An adaptive quantization parameter clip range determination scheme to achieve the visual quality smoothness and prevent the encoder buffer from underflow and overflow.
论文关键词:HEVC,Rate control,Texture complexity,Bit allocation,Quantization parameter clip,Adaptive initial quantization parameter
论文评审过程:Received 21 May 2014, Revised 16 September 2014, Accepted 17 September 2014, Available online 28 September 2014.
论文官网地址:https://doi.org/10.1016/j.image.2014.09.006