Patent ID: 7697722
Filing Date: 2010-04-13
Classification: G06K

Abstract:
1. A portable terminal, comprising: a screen image pickup means for photographing text; a character clipping means for clipping an image containing at least one character string from an image of text photographed by the screen image pickup means; a character recognition means for recognizing a character string contained in the image clipped by the character clipping means and acquiring a character code string of the clipped character string; and a character string tracking means for comparing a current character code string acquired by the character recognition means and a previous character code string acquired from a character string contained in a clipped image of immediately preceding text captured by the screen image pickup means and for setting the current character code string as a tracking object character string when a character code line of the current character code string is at least partially the same as a character code line of a previous character code string.