no code implementations • 26 Apr 2022 • Li-Heng Chen, Christos G. Bampis, Zhi Li, Lukáš Krasula, Alan C. Bovik
By conducting extensive experimental tests on existing deep image compression models, we show results that our new resizing parameter estimation framework can provide Bj{\o}ntegaard-Delta rate (BD-rate) improvement of about 10% against leading perceptual quality engines.
no code implementations • 25 Feb 2022 • Pastor Andréas, Lukáš Krasula, Xiaoqing Zhu, Zhi Li, Patrick Le Callet
The goal of most subjective studies is to place a set of stimuli on a perceptual scale.
no code implementations • 29 Jan 2021 • Pulkit Tandon, Mariana Afonso, Joel Sole, Lukáš Krasula
Banding artifacts are artificially-introduced contours arising from the quantization of a smooth region in a video.
no code implementations • 1 Oct 2020 • Suiyi Ling, Jing Li, Anne Flore Perrin, Zhi Li, Lukáš Krasula, Patrick Le Callet
The development of rigorous quality assessment model relies on the collection of reliable subjective data, where the perceived quality of visual multimedia is rated by the human observers.