Extraction of textual and graphic overlays from video
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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N/A
Issued Date -
Mar 6, 2003
app pub date -
Aug 24, 2001
filing date -
Aug 24, 2001
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method for extracting textual and graphical overlays from video sequences involves steps of detecting a potential overlay in a video sequence and then verifying that the potential overlay is an actual overlay. Detection of textual overlays involves wavelet decomposition and neural network processing, while detection of graphical overlays involves template matching. Verification of textual and graphical overlays involves spatial and/or temporal verification.
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