Segmental Rescoring in Text Recognition
Patent, Filed 3 Jun 2009, patented 4 Feb 2014
RAYTHEON BBN TECHNOLOGIES CAMBRIDGE MA
Pagination or Media Count:
A method for text recognition includes generating a number of text hypotheses for an image, for example, using an HMM based approach using fixed-width analysis features. For each text hypothesis, one or more segmentations are generated and scored at the segmental level, for example, according to character or character group segments of the text hypothesis. In some embodiments, multiple alternative segmentations are considered for each text hypothesis. In some examples, scores determined in generating the text hypothesis and the segmental score are combined to select an overall text recognition of the image.