Interframe slope overload for television-picture noise reduction |
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Authors: | Dennis TJ |
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Affiliation: | University of Essex, Department of Electrical Engineering Science, Colchester, UK; |
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Abstract: | Results of experiments on the temporal slope-overload phenomenon obtained with a 625 line/5.5 MHz digital television interframe delta modulator are reported. Whereas pictures containing genuine movement are heavily degraded, still pictures contaminated by noise can be rendered usable: s.n.r. improvements from 17 dB (original) to 34 dB (processed) have been obtained |
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