JPS5984652U

JPS5984652U - Online recognition processing device for handwritten characters

Info

Publication number: JPS5984652U
Application number: JP14218883U
Authority: JP
Inventors: 小高　和巳
Original assignee: 日本電信電話株式会社
Priority date: 1983-09-16
Filing date: 1983-09-16
Publication date: 1984-06-07
Also published as: JPS5929246Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は、本考案の１実施例のブロックダイヤグラム、
第２図はストローク数３以下の平仮名文字に対する認識
率を説明する説明図である。図中１は、文字情報入力手段、２は前処理手段、３はス
トローク数分類手段、４はストローク３点近似手段、５
はストローク６点近似手段、６はパターン間距離計算手
段、７は標準パターン蓄積手段、８は最小距離検出手段
、９は切換手段を表わす。FIG. 1 is a block diagram of one embodiment of the present invention,
FIG. 2 is an explanatory diagram illustrating the recognition rate for hiragana characters with a stroke count of 3 or less. In the figure, 1 is a character information input means, 2 is a preprocessing means, 3 is a stroke number classification means, 4 is a stroke 3-point approximation means, and 5
6 represents a stroke 6-point approximation means, 6 represents an inter-pattern distance calculation means, 7 represents a standard pattern storage means, 8 represents a minimum distance detection means, and 9 represents a switching means.

Claims

[Scope of utility model registration request]

Characters containing at least hiragana and kanji are input while being written using a writing instrument, the strokes of the input characters are traced, and the coordinates of multiple writing points of each stroke are extracted as feature points, and the coordinates of the multiple writing points of each stroke are extracted as feature points. An online recognition processing device for handwritten characters that recognizes standard characters as input characters based on the distance between each feature point includes a character information input means for inputting characters while detecting the coordinates of a writing point; a stroke number classification means for classifying characters into characters with a large number of strokes and characters with a small number of strokes; and a first means for classifying characters into characters with a large number of strokes and characters with a small number of strokes; a point approximation means; and a second point approximation means for extracting feature points for each stroke with more feature points than the first point approximation means to form a feature pattern of the input character in the case of a character with a small number of strokes; , a switching means for switching between the first point approximation means and the second point approximation means; a standard pattern storage means storing a standard pattern formed from each feature point of the standard character; An inter-pattern distance calculation means for calculating the distance between the characteristic pattern of the input character extracted by the point approximation means and each standard pattern of the standard characters, and among the calculation results of the inter-pattern distance calculation means. A minimum distance detecting means for detecting a minimum value from , and recognizing a standard character having the minimum value as an input character.
Features: Online recognition processing device for handwritten characters.