English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Tools annual

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

A method which reveals the visual masking in the human visual system (HVS) is useful in perceptual data coding. In this paper, we propose a color DCT-based method to esti-mate color spatio-temporal just noticeable distortion (JND) for video coding. The spatio-temporal JND profiles are assessed by incorporating a new temporal masking adjust-ment into the mathematical model of estimating the DCT-based spatial JND profiles for luminance component and chrominance components of color images. In this paper, the new block-based temporal masking adjustment mainly con-sidering the variation of local temporal statistics in lumi-nance component between successive video frames is pro-posed. The spatio-temporal JND profiles are used to tune the H.264 video codec for higher performance. The simula-tion results demonstrate the performance of the perceptual video coding in terms of bit rates and visual quality. The bit rates required by the perceptually tuned video codec are lower than that required by the un-tuned video codec at nearly the same visual quality.

Color Spatio-Temporal JND and Its Application to Video Coding