Image analysis – Image segmentation – Distinguishing text from other regions
Patent
1997-06-02
2000-08-08
Johns, Andrew W.
Image analysis
Image segmentation
Distinguishing text from other regions
382292, G06K 936
Patent
active
061012742
ABSTRACT:
A computer-implemented method for the identification and interpretation of text captions in an encoded video stream of digital video signals comprises sampling by selecting frames for video analysis, decoding by converting each of frames selected into a digitized color image, performing edge detection for generating a grey scale image, binarizing by converting the grey scale image into a bi-level image by means of a thresholding operation, compressing groups of consecutive pixel values in the binary image, mapping the consecutive pixel values into a binary value, and separating groups of connected pixels and determining whether they are likely to be part of a text region in the image or not.
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Arman Farshid
Benson Daniel Conrad
DePommier Remi
Pizano Arturo
Ahmed Adel A.
Johns Andrew W.
Siemens Corporate Research Inc.
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