Stephen Wolf, Margaret H. Pinson , Coleen T. Jones, and Arthur A. Webster

Abstract: Summarizes detailed methods of measurement for objective video quality parameters based on the Sobel-filtered image and the motion difference image. This contribution was submitted to ANSI T1A1 prior to conducting the T1A1 subjective experiment (this experiment collected 625 mean opinion scores - i.e., 25 test scenes passed through 25 different video transmission systems that ranged in bit rate from 64 kb/sec to 45 Mb/sec). The video quality parameters presented here have demonstrated strong correlation to subjective evaluations of the video and can be used for in-service as well as out-of-service tests since low bit-rate features are extracted and compared from the input and corresponding output video images.

Keywords: digital; performance; measurements; video; quality; metrics; features; parameters; objective; subjective; correlation; in-service; Testing; spatial; temporal; compression; motion; out-of-service; Sobel

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