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We propose a novel Coding Unit (CU) level luma-chroma perceptually adaptive quantization technique for HEVC, we name this technique C-BAQ. C-BAQ is designed to improve upon the luma-only adaptive perceptual quantization method adopted by JCT-VC. This luma-only perceptual quantization technique, named AdaptiveQP, has demonstrated coding improvements compared with Uniform Reconstruction Quantization,...
The default HVS-CSF QM technique in HEVC does not take into account the video data resolution, nor does it take into consideration the VDU’s specific resolution to determine the appropriate levels of quantization required to reduce unwanted quantization-induced compression artifacts. Because of these shortcomings, we propose a novel, Adaptive Quantization Matrix (AQM) technique for the HEVC standard...
The High Efficiency Video Coding (HEVC) reference encoder includes a Uniform Reconstruction Quantization (URQ) method. This block level quantization technique does not take into account the importance of transform coefficients in terms of signal reconstruction. In this paper, we present a transform coefficient level quantization technique based on a soft thresholding approach, in which the quantization...
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