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Proceedings Paper

Consumer acceptance of MPEG2 video at 3.0 to 8.3 Mb/s
Author(s): Gregory W. Cermak; Sandra K. Teare; Ernest P. Tweedy; James C. Stoddard
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Paper Abstract

Consumers judged the quality of video images that had been compressed by an MPEG2 codec at the bit rates 3.0, 3.9, 5.3, and 8.3 Mb/s. The judgments were made in a standard testing laboratory. VHS and simulated cable analog systems also processed the same scenes for comparison. This study asked: (1) At what bit rate does MPEG2 video equal or exceed the quality of competing technologies such as cable TV and VHS? Answer: 3 Mb/s. (2) How much more are consumers willing to pay for MPEG2 compared to what they currently pay for cable TV? Answer $1 - $2. The answers to both questions come with many caveats. Further results: MPEG2 was rated higher than MPEG1 at the same bit rate, even without the use of 'B frames.' The rating difference was about a dollar. MPEG2 at 3.0 Mb/s is rated the same as MPEG1 at 3.9 Mb/s. Subjective quality improves only slowly as bit rate increases from 3.0 to 8.3 Mb/s. MPEG2 at 8.3 Mb/s was rated the same as the original, uncompressed signal. Individual test scenes were rated differently, independent of the coding system.

Paper Details

Date Published: 4 November 1996
PDF: 10 pages
Proc. SPIE 2917, Broadband Access Systems, (4 November 1996); doi: 10.1117/12.257359
Show Author Affiliations
Gregory W. Cermak, GTE Labs. Inc. (United States)
Sandra K. Teare, GTE Labs. Inc. (United States)
Ernest P. Tweedy, GTE Labs. Inc. (United States)
James C. Stoddard, GTE Labs. Inc. (United States)


Published in SPIE Proceedings Vol. 2917:
Broadband Access Systems
Wai Sum Lai; Indra Widjaja; Dennis Karvelas; Sam T. Jewell; Curtis A. Siller; Indra Widjaja; Dennis Karvelas, Editor(s)

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