Foveated video quality assessment

Sanghoon Lee, Marios S. Pattichis, Alan C. Bovik

Research output: Contribution to journalArticle

118 Citations (Scopus)

Abstract

Most image and video compression algorithms that have been proposed to improve picture quality relative to compression efficiency have either been designed based on objective criteria such as signal-to-noise-ratio (SNR) or have been evaluated, post-design, against competing methods using an objective sample measure. However, existing quantitative design criteria and numerical measurements of image and video quality both fail to adequately capture those attributes deemed important by the human visual system, except, perhaps, at very low error rates, We present a framework for assessing the quality of and determining the efficiency of foveated and compressed images and video streams. Image foveation is a process of nonuniform sampling that accords with the acquisition of visual information at the human retina. Foveated image/video compression algorithms seek to exploit this reduction of sensed information by nonuniformly reducing the resolution of the visual data. We develop unique algorithms for assessing the quality of foveated image/video data using a model of human visual response. We demonstrate these concepts on foveated, compressed video streams using modified (foveated) versions of H.263 that are standard-compliant. We find that quality vs. compression is enhanced considerably by the foveation approach.

Original languageEnglish
Pages (from-to)129-132
Number of pages4
JournalIEEE Transactions on Multimedia
Volume4
Issue number1
DOIs
Publication statusPublished - 2002 Mar 1

All Science Journal Classification (ASJC) codes

  • Signal Processing
  • Media Technology
  • Computer Science Applications
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Foveated video quality assessment'. Together they form a unique fingerprint.

  • Cite this