The Video Quality Experts Group: Evaluates Objective Methods of Video Image Quality Assessment

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Publisher: SMPTE — White Plains, NY
Doc Type: Conference Paper
Content Type: Original Research
Volume: 1998, No. 7, pp. 1–8
Abstract: This paper briefly discusses objective and subjective methods for video quality assessment and then focuses on the current work plan and schedule of the Video Quality Experts Group (VQEG). Subjective assessment methods have been used reliably for many years to evaluate video image quality. They continue to provide the most reliable assessments. Some issues that arise with subjective assessment include the cost of conducting the evaluations and the fact that these methods cannot easily be used to monitor video image quality in real time. Traditional analog objective measurements, while still necessary, are not sufficient to measure the quality of digitally compressed video systems. Thus there is a need to develop new objective methods utilizing the characteristics of the human visual system. While several new objective methods have been developed, there is no internationally standardized method. In October 1997, the VQEG was formed at a video quality experts meeting at Centro Studi e Laboratori Telecomunicazioni (CSELT) in Turin, Italy. The group is composed of experts from various backgrounds and affiliations, including participants from several internationally recognized laboratories working in the field of video quality assessment. The majority of the participants are active in the International Telecommunications Union (ITU) and the VQEG combines the expertise and resources found in several Study Groups to work for a common goal. The first task undertaken by the VQEG is to provide a validation of objective video quality measurement methods leading to Recommendations in both the Telecommunications (ITU-T) and Radio (ITU-R) sectors of the ITU. To this end, VQEG has designed and is conducting a test program to compare subjective video quality evaluations with a number of proposed objective measurement techniques. The first test program will evaluate objective model performance against subjective results for video quality in the bit rate range of 768 kb/s to 50 Mb/s.
Publication Date: 1998-10-01
DOI: 10.5594/M00304
Link: https://doi.org/10.5594/M00304
Author(s): Philip CorriveauCommunications Research Centre Ottawa, Canada
Arthur WebsterU.S. Dept. of Commerce Boulder, Colorado
Copyright: © 1998 Society of Motion Picture and Television Engineers, Inc.

Bibliographic Reference(s)

1. Recommendation ITU-R BT.500–7, “Methodology for the subjective assessment of the quality of television pictures” , ITU-R 1974–1997. EXTERNAL
2. Recommendation ITU-T P.910, “Subjective video quality assessment methods for multimedia applications” , ITU-T 1996. EXTERNAL
3. VQEG meeting report for the Gaithersburg meeting. Can be accessed (October 1998) at anonymous ftp site: ftp://ftp.its.bldrdoc.gov/dist/ituvidq/vqeg2min.rtf . EXTERNAL
4. VQEG Subjective Test Plan. Can be accessed (October 1998) at anonymous ftp site: http://ftp.its.bldrdoc.gov/dist/ituvidq/subj_test_plan_final.rtf . EXTERNAL
5. VQEG Objective Test Plan. Can be accessed (October 1998) at anonymous ftp site: http://ftp.its.bldrdoc.gov/dist/ituvidq/obj_test_plan_final.rtf . EXTERNAL
6. Recommendation ITU-R BT.601–5 “Studio encoding parameters of digital television for standard 4:3 and wide-screen 16:9 aspect ratios” , 1997 . EXTERNAL

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Philip Corriveau and Arthur Webster; The Video Quality Experts Group: Evaluates Objective Methods of Video Image Quality Assessment, SMPTE Meetings and Conferences ( October 1998); SMPTE, 1998. Available at https://doi.org/10.5594/M00304

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Philip Corriveau and Arthur Webster; The Video Quality Experts Group: Evaluates Objective Methods of Video Image Quality Assessment, SMPTE Meetings and Conferences ( October 1998); SMPTE, 1998. Available at https://doi.org/10.5594/M00304

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Philip Corriveau and Arthur Webster; <cite id="bib-10-5594-m00304">The Video Quality Experts Group: Evaluates Objective Methods of Video Image Quality Assessment</cite>, SMPTE Meetings and Conferences ( October 1998); SMPTE, 1998
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