Zobrazeno 1 - 10
of 417
pro vyhledávání: '"Prangnell, P."'
Autor:
Prangnell, Lee, Sanchez, Victor
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 perceptual compression research. In general, most previously proposed
Externí odkaz:
http://arxiv.org/abs/2201.09822
Autor:
Hannah U Holtkamp, Claude Aguergaray, Kalita Prangnell, Christopher Pook, Satya Amirapu, Angus Grey, Cather Simpson, Michel Nieuwoudt, Paul Jarrett
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-9 (2023)
Abstract Discoid lupus erythematosus (DLE) is the most common form of cutaneous lupus1. It can cause permanent scarring. The pathophysiology of is not fully understood. Plasmacytoid dendritic cells are found in close association with apoptotic kerati
Externí odkaz:
https://doaj.org/article/e160cca8d083474f989e2c6aefba2be4
Autor:
Liu, Chuanlai, Garner, Alistair, Zhao, Huan, Prangnell, Philip B., Gault, Baptiste, Raabe, Dierk, Shanthraj, Pratheek
The grain boundary (GB) microchemistry and precipitation behaviour in high-strength Al-Zn-Mg-Cu alloys has an important influence on their mechanical and electrochemical properties. Simulation of the GB segregation, precipitation, and solute distribu
Externí odkaz:
http://arxiv.org/abs/2104.05791
Autor:
Prangnell, Lee
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 Coding Blocks (CBs) based only on the variance of samples in a luma CB.
Externí odkaz:
http://arxiv.org/abs/2005.07925
Autor:
Prangnell, Lee, Sanchez, Victor
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 redundancies can be perceptually quantized. The default quantization syste
Externí odkaz:
http://arxiv.org/abs/2005.07928
Autor:
Prangnell, Lee, Sanchez, Victor
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 image. In this paper, we propose a novel perceptual image coding techniqu
Externí odkaz:
http://arxiv.org/abs/2005.07930
Autor:
Prangnell, Lee
The default quantisation algorithms in the state-of-the-art High Efficiency Video Coding (HEVC) standard, namely Uniform Reconstruction Quantisation (URQ) and Rate-Distortion Optimised Quantisation (RDOQ), do not take into account the perceptual rele
Externí odkaz:
http://arxiv.org/abs/1906.03395
Wire + arc additive manufacture (WAAM) is an attractive method for manufacturing large-scale aerospace components, however the microstructural changes that occur and the effect of interpass rolling are poorly understood. Therefore two fundamental stu
Externí odkaz:
http://arxiv.org/abs/1811.02903
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 video data. Due to vast file sizes and associated bitrates, it is desir
Externí odkaz:
http://arxiv.org/abs/1802.05884
Autor:
Prangnell, Lee, Sanchez, Victor
The JCT-VC standardized Screen Content Coding (SCC) extension in the HEVC HM RExt + SCM reference codec offers an impressive coding efficiency performance when compared with HM RExt alone; however, it is not significantly perceptually optimized. For
Externí odkaz:
http://arxiv.org/abs/1710.09919