Method and device for video-signal processing, transmitter, corresponding computer program product
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United States of America Patent
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Apr 11, 2017
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N/A
app pub date -
Sep 16, 2011
filing date -
Sep 17, 2010
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Abstract
A motion analysis is applied to a signal to identify high-motion regions and low-motion regions. An analysis of low-level characteristics of the signal, such as a skin tone or contrast analysis, is used to generate a map of regions with low-level characteristics. The map is filtered to identify regions having both low-level characteristics and low motion. Based on a comparison of the area of the regions having both low-level characteristics and low motion to a threshold, regions of interest are identified. If the area is greater than the threshold, the regions of interest are identified as a function of the high-motion regions and of the regions that have both low-level characteristics and low motion. Otherwise, the regions of interest are identified as a function of the high-motion regions and of regions identified using face detection.
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