System and method for detecting a non-video source in video signals
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United States of America Patent
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Sep 21, 2010
Grant Date -
Feb 8, 2007
app pub date -
Sep 29, 2006
filing date -
Jan 11, 2001
priority date (Note) -
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Abstract
A video sequence may include a modality corresponding with an embedded pattern. At least one state machine detects the modality in accordance with difference signals. A signal generator generates the difference signals responsive to decision windows that define regions of interest in the video sequence. The modality may correspond with an embedded film source or other pattern types in the video sequence. Where the state machine detects more than one pattern, a single pattern is selected according to a predetermined priority. The video sequence may contain both static patterns and embedded film source patterns. The state machine discerns the presence of the embedded film source patterns notwithstanding the presence of the static patterns.
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