Visually lossless coding in HEVC: A high bit depth and 4:4:4 capable JND-based perceptual quantisation technique for HEVC

作者：

Highlights：

•

• JND modelling can be applied to both luma and chroma video data.

• JND-based perceptual quantisation of chroma data significantly decreases bitrates.

• Perceptual quantisation is more useful when applied to YCbCr 4:4:4 video data.

• Subjective evaluations are critically important for perceptual coding techniques.

• Objective visual quality metrics are not useful for measuring perceptual quality.

摘要

•JND modelling can be applied to both luma and chroma video data.•JND-based perceptual quantisation of chroma data significantly decreases bitrates.•Perceptual quantisation is more useful when applied to YCbCr 4:4:4 video data.•Subjective evaluations are critically important for perceptual coding techniques.•Objective visual quality metrics are not useful for measuring perceptual quality.

论文关键词：HEVC,H.265,JND,Visually lossless coding,Perceptual video coding,Perceptual quantisation

论文评审过程：Received 18 August 2017, Revised 12 February 2018, Accepted 12 February 2018, Available online 16 February 2018, Version of Record 23 February 2018.

论文官网地址：https://doi.org/10.1016/j.image.2018.02.007