Institute for Telecommunication Sciences
the research laboratory of the National Telecommunications and Information Administration

Stephen Wolf

Abstract: This contribution recommends that calculations of visual channel delay be based on fields rather than frames for an interlaced video system such as NTSC. Using fields rather than frames will double the resolution of the measurement without significantly increasing the complexity and will overcome certain measurement anomalies that might result from calculations based on frames.

Keywords: Video; delay; variable; NTSC; field; frame; rate; constant


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Institute for Telecommunication Sciences
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Margaret H. Pinson
Institute for Telecommunication Sciences
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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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