3 citations · 7 across the 9 of their papers we have counts for
13 papers
Spectral-PQ: A Novel Spectral Sensitivity-Orientated Perceptual Compression Technique for RGB 4:4:4 Video Data
Lee Prangnell, Victor Sanchez
There exists an intrinsic relationship between the spectral sensitivity of the Human Visual System (HVS) and colour perception; these intertwined phenomena are often overlooked in…
Spatiotemporal Adaptive Quantization for the Perceptual Video Coding of RGB 4:4:4 Data
Lee Prangnell, Victor Sanchez
Due to the spectral sensitivity phenomenon of the Human Visual System (HVS), the color channels of raw RGB 4:4:4 sequences contain significant psychovisual redundancies; these redu…
Spatiotemporal Adaptive Quantization for Video Compression Applications
Lee Prangnell
JCT-VC HEVC HM 16 includes a Coding Unit (CU) level adaptive Quantization Parameter (QP) technique named AdaptiveQP. It is designed to perceptually adjust the QP in Y, Cb and Cr Co…
HVS-Based Perceptual Color Compression of Image Data
Lee Prangnell, Victor Sanchez
In perceptual image coding applications, the main objective is to decrease, as much as possible, Bits Per Pixel (BPP) while avoiding noticeable distortions in the reconstructed ima…
Frequency-Dependent Perceptual Quantisation for Visually Lossless Compression Applications
Lee Prangnell
The default quantisation algorithms in the state-of-the-art High Efficiency Video Coding (HEVC) standard, namely Uniform Reconstruction Quantisation (URQ) and Rate-Distortion Optim…
Coding Block-Level Perceptual Video Coding for 4:4:4 Data in HEVC
Lee Prangnell, Miguel Hernández-Cabronero, Victor Sanchez
There is an increasing consumer demand for high bit-depth 4:4:4 HD video data playback due to its superior perceptual visual quality compared with standard 8-bit subsampled 4:2:0 v…