Patent ID: 6389166
Filing Date: 2002-05-14
Classification: G06K

Abstract:
An on-line handwritten Chinese character recognition apparatus having a buffer region for temporary storage of data and an output portion, said apparatus comprising:a radical template feature memorizing portion including shape features of base radicals or derived radicals defined by an input method based on dismantling by character shapes; an input method reference portion founded on a conventional input method based on dismantling by character shapes, and including an input method system data file for character compressed code and sequence code look-up information; an exception character description portion for recording features of exception characters to aid a post-processing portion in deciding a final recognition result from among candidate characters; an input portion including a digitizing tablet and a pen of a conventional on-line character handwriting equipment; a pre-processing portion for normalization and line-thinning processing of input handwritten character, and for extracting features needed in character recognition for storage in the buffer region; a character shape dismantling portion for dismantling character based on the features of the handwritten character extracted by the pre-processing portion and with reference to radical template feature memorizing portion so as to find the radicals that can form the handwritten character; a comparator portion for comparing the constituted radicals found by the character shape dismantling portion with contents of the input method reference portion to get candidate characters that have difference values below a threshold value; the post-processing portion deciding the final recognition result from among the candidate characters based on other features of the handwritten character and with reference to contents of the exception character description portion, and for transferring the final recognition result to the output portion for output.