Stephen Wolf

Abstract: Presents an objective analysis technique that can be used for detecting temporal edge noise in an output video sequence that has been digitally compressed. Temporal edge noise is defined in ANSI T1.801.02-1996 as "A form of edge busyness characterized by time-varying sharpness to edges of objects." The technique uses the Fourier transform to perform a comparative analysis of the frequencies present in the time history of the spatial information (SI) features measured from the input and output video (SI features are defined in ANSI T1.801.03-1996). The presence of temporal edge noise in the output video is shown to result in high frequency information being added to the time history of the SI feature.

Keywords: digital; performance; noise; video; quality; objective; impairments; Testing; temporal; scene; edge

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