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1.发明专利
公开(公告)号：JPH076204A
公开(公告)日：1995-01-10
申请号：JP2030594
申请日：1994-02-17
Applicant: IBM
Abstract: PURPOSE: To improve the handwritten character recognizing accuracy of a handwritten character recognizing system by appropriately estimating the line space and base line of handwritten characters. CONSTITUTION: The Cartesian coordinate of a holograph caught by means of a digitizer is normalized so that the holograph matches the space of the prototype character. In other words, the serial stream of (X, Y) coordinate pairs representing the position of a stylus on a tablet is sampled at every character written on the tablet and the maximum values (Ymin ) and maximum values (Ymax ) of the sampled Y-coordinate points are calculated at every character written on the tablet. Then the line space (LS) value of one character is calculated from formula I and the base line (BL) value of the character is calculated from formula II. In the formulae I and II, LSold ', Wold and Wcur ', and BLold respectively represent a previously calculated LS value, system constants, and a previously calculated BL value.
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2.发明专利
公开(公告)号：JPH0689368A
公开(公告)日：1994-03-29
申请号：JP3965693
申请日：1993-03-01
Applicant: IBM
Inventor： JIYOONKI KIMU
Abstract: PURPOSE: To fast construct a handwritten character recognition prototype for a specific user. CONSTITUTION: This method collects the handwritten characters of the alphabet set elements from plural writers, sorts these collected characters in every handwriting style to generate plural prototype style sets Sjs, and also generates a default set D for the characters which do not belong to any of those sets Sjs, These sets Sjs and D are respectively stored in a style set storage part 36 and a default set storage part 38. A prescribed number of characters are sampled out of those which are handwritten by a user as a user handwritten character set (u), and each of sampled characters of the set (u) is compared with the set Sj stored in the part 36 by a comparison part 32 to decide whether the handwritten character is coincident with one or more of characters of the set Sj. Thereafter, the set (u), the coincident set Sj and the set D are merged into a specific user prototype set at a merge part 34.
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3.发明专利
公开(公告)号：JPH0620099A
公开(公告)日：1994-01-28
申请号：JP22481291
申请日：1991-08-09
Applicant: IBM
Inventor： TOOMASU EDOWAADO CHIEFUARASU , TETSUNOSUKE FUJISAKI , JIYOONKI KIMU , CHIYAARUZU KAASON TATSUPAATO
Abstract: PURPOSE: To establish a character prototype set having a sufficient applicable range, proper expression, and mutual sufficient distance. CONSTITUTION: This method includes a stage for inputting many strokes being the constituting strokes of a mark to be recognized by this system, stage for forming a first set (CHR) constituted of more than one marks from the inputted strokes, stage for meaning the more than one characteristics of the similar configuration mark being the element of the first set for forming a second set (AVG) constituted of a prototype mark to be compared with the set of the inputted strokes during the usage of the system, stage for resolving the prototype marks of the second set into the constituting strokes, and stage for forming a third set (STK) constituted of the constituting strokes of the second set to be compared with the inputted strokes during the usage of the system. Also, this method includes a stage for identifying the mark of the second set corresponding only to the single mark of the first set, and a stage for deleting the identified mark from the second set.
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公开(公告)号：JPH05217025A
公开(公告)日：1993-08-27
申请号：JP22042092
申请日：1992-08-19
Applicant: IBM
Inventor： TETSUNOSUKE FUJISAKI , JIYOONKI KIMU , JIYOOJI JIYOZEFU RIIBUMAN , CHIYAARUSU KAASON TAPAATO
Abstract: PURPOSE: To reduce similarity between different prototypes in an on-line handwritting recognizing system by interactively removing similar prototypes to be frequently confused by a user. CONSTITUTION: A box is touched by a pen tip 14, and when the selection is executed to prepare a new prototype (n), a new window is opened on a display screen and a label (n) newly intended by a user is handwritten. A prototype processor 24 prepares the new prototyp (n), which is added to a group of prototypes and stored in a character prototype storage device 20. In the case of storing a new handwritten character for the intended label (n), a new prototype is prepared from the intended label (n) of the new hand written character by the processor 24 and added to the contents of the device 20. In the case of canceling the new handwritten character of the intended label (n), the processor 24 removes the handwritten character from the device 20.
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