Title :
A multi-stage algorithm of extracting joint points for generating function-fonts
Author :
Haruki, R. ; Toraichi, K. ; Ohtaki, Y.
Author_Institution :
Inst. of Inf. Sci. & Electron., Tsukuba Univ., Japan
Abstract :
An automatic function-font generating system for brush-written characters has been proposed. The system extracts sharp corners of boundary lines, (so-called joint points), and approximates the boundary lines between adjacent joint points using a piecewise polynomial. The quality of the generated function-fonts is controlled by the location of joint points. An attempt is made to develop an advanced function-font generating system with an algorithm to extract appropriate joint points. The algorithm consists of three stages: (1) extracting joint points by evaluating digital curvature, (2) extracting additional joint points by evaluating the curvature of approximated boundary line, and (3) removing the redundant joint points. The performance of the method is verified by applying it to brush-written characters, printed characters, and figures
Keywords :
character recognition; character sets; feature extraction; software performance evaluation; automatic function-font generating system; boundary lines; brush-written characters; digital curvature; feature extraction; figures; joint points; multi-stage algorithm; performance verification; piecewise polynomial; printed characters; redundant point removal; sharp corners; Approximation algorithms; Automatic control; Character generation; Data mining; Function approximation; Handwriting recognition; Image reconstruction; Image segmentation; Pixel; Polynomials;
Conference_Titel :
Document Analysis and Recognition, 1993., Proceedings of the Second International Conference on
Conference_Location :
Tsukuba Science City
Print_ISBN :
0-8186-4960-7
DOI :
10.1109/ICDAR.1993.395788
