ANSI T1A1 Contribution T1A1.5/94-133, July 18, 1994.

Status of NTIA's Analysis of Subjective Data

Coleen T. Jones; Ned Crow

Abstract: Presents results from the analysis of variance (ANOVA) of the subjective opinion scores for the T1A1 subjective video experiment that contained 625 mean opinion scores (25 test scenes passed through 25 different video transmission systems that ranged in bit rate from 64 kb/sec to 45 Mb/sec). This contribution includes the analysis of the three teams (green, red, and orange) for two of the three laboratories involved in the testing. The analysis was performed as discussed in contribution T1A1.5/94-128 ("Methods for Analysis of Inter-laboratory Video Performance Standard Subjective Test Data"). The ANOVAs showed that all main effects and interactions were significant for all teams within the two laboratories.

Keywords: performance; analysis; video; quality; objective; subjective; ANOVA; experiment; statistical

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Disclaimer: Certain commercial equipment, components, and software may be identified in this report to specify adequately the technical aspects of the reported results. In no case does such identification imply recommendation or endorsement by the National Telecommunications and Information Administration, nor does it imply that the equipment or software identified is necessarily the best available for the particular application or uses.

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