Patent ID: 7403656
Filing Date: 2008-07-22
Classification: G06K

Abstract:
1. An apparatus for recognition of a character string in a scene image, comprising: a plurality of different binarization means for obtaining a plurality of different binary images from an input image; pre-segmentation means for detecting a set of pixels as a set of character subimage candidates from each binary image obtained; network synthesizing means for forming a single segmentation hypothesis network from a set of character subimage candidates obtained by the pre-segmentation means; character string recognizing means that selects a set of character subimage candidates that is most plausible as a character from among a set of character subimage candidates of the segmentation hypothesis network, links a set of character subimage candidates on the hypothesis network, and extracts it as a character string; text plane detecting means for detecting information of edges of a text plane from the input image; and candidate character string selecting means for extracting a character string satisfying predetermined conditions using information of the edges of the text plane when a plurality of character string candidates are extracted as the character string.