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

Inventor： UIRUKAA SHIEEN BURUUSU ,  JIYOONKI KIMU ,  DONARUDO BEN MATOSON ,  UIRIAMU DEBITSUDO MODORIN

IPC: G06K9/36 ,  G06K9/32 ,  G06K9/42 ,  G06K9/62

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.