Patent
Apparatus and method for use in image processing
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TLDR
In this paper, an edge extractor, a page segmentation facility and a novel feature extraction facility are proposed for optical character recognition in a system which has a scanner (10) for scanning a document, an edge extractsor (11) for identifying edges in the image produced by the scanner to produce an outline of each object identified in an image, segmentation facilities for grouping the object outlines into blocks, means for identifying features of the outlines, and a final classification stage (16) for providing data in an appropriate format representative of the characters in image.Abstract:
Optical character recognition is achieved by a system which has a scanner (10) for scanning a document, an edge extractor (11) for identifying edges in the image produced by the scanner to produce an outline of each object identified in the image, a segmentation facility (15) for grouping the object outlines into blocks, means (14) for identifying features of the outlines, and a final classification stage (16) for providing data in an appropriate format representative of the characters in the image. Also disclosed are a novel edge extractor, a novel page segmentation facility and a novel feature extraction facility.read more
Citations
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Method for omnidirectional processing of 2D images including recognizable characters
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References
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Patent
Means for resolving ambiguities in text based upon character context
TL;DR: A method of identifying an object within a set of object candidates includes the steps of: calculating the probability of occurrence of each member of each candidate, wherein each candidate contains one member of the set of candidate candidates, and employing formulae using a method of groups and projections; and identifying one of the objects based on the calculated probability as discussed by the authors.
Patent
Optical character recognition method and apparatus
TL;DR: In this paper, a bit-mapped representation of the page is then stored in a memory means such as the memory of a computer system and a processor processes the bitmapped image to produce an output comprising coded character representations of the text on the page.
Patent
Method and apparatus for recognition of discontinuous text
TL;DR: In this paper, a test cell domain is increased to locate a pixel and consider it a portion of the same character if it is within the minimum permissable pixel gap range.
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Morphometric analysis of anatomical tomographic data
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Journal ArticleDOI
Polygonal approximation of 2-D shape through boundary merging
Jia-Guu Leu,Limin Chen +1 more
TL;DR: A shape approximation method which yields accurate and unique polygonal approximations by looking for arcs with two or three runs along the shape boundary whose arc-to-chord deviations are not only the smallest in their local areas but also smaller than a tolerance value.