Patent ID: 6594393
Filing Date: 2003-07-15
Classification: G06K,Y10S

Abstract:
A method for operating a processor-controlled machine to decode a text line image; the method comprising:while a skip mode switch is off, for each image position in the text line image, a first computing step of computing a maximum cumulative score indicating a measurement of a match between a sequence of character templates and an image region in the text line image from a starting location of the text line image to the image position; a second computing step of computing a score change value between the maximum cumulative score and a prior maximum cumulative score computed at the image position; and comparing the score change value to a prior score change value and turning the skip mode switch on when the score change value is substantially constant for at least a predetermined number of consecutive image positions in the text line image; while the skip mode switch is on, for each image position in the text line image, a third computing step of computing the maximum cumulative score by adding the score change value to a prior maximum cumulative score computed at the image position; and producing a transcription of the text line image using the maximum cumulative scores.