Character pattern recognition method and apparatus using feature enhanced magnetic domain patterns
Method and device for the recognition of characters, preferably of figures Patent #: 3999161
ApplicationNo. 05/780111 filed on 03/22/1977
US Classes:382/200Measurements made on alphanumeric characters
ExaminersPrimary: Boudreau, Leo H.
Attorney, Agent or Firm
International ClassG06K 9/50 (20060101)
Foreign Application Priority Data1976-03-30 JP
AbstractA pattern recognition processing system in which variations in a character, pattern or the like, especially in a handwritten one, are suppressed to extract its invariable characteristics, ensuring accurate recognition of the character, pattern or the like. The pattern to be recognized is divided into circumscribed quadrangular areas and scanned in horizontal and vertical directions to extract reflection segments between the vertical frames of the circumscribed quadrangular areas and particular segments between adjacent ones of pattern strokes. Further, endpoints of these reflection and particular segments are checked in directions across the scanning directions to extract those endpoints which are not blocked by the pattern strokes, and the corresponding positions of the co-ordinates of these endpoints on a figure frame in the directions across the scanning directions are encoded to extract characteristics of contours of the pattern to be recognized.