Method for recognizing characters
First Claim
Patent Images
1. A character recognition method, comprising:
- using an optical character recognition device fora. obtaining a image with printing words;
b. scanning a line of the printing words , wherein the line of printing words comprises a plurality of first characters;
c. generating a plurality of typographical lines by using the first characters;
d. determining a character category of each first character according to a relative position of the first character in the typographical lines, the step d. further comprising;
d1. determining whether or not each first character is a small character, the step d1. further comprising;
d1-1. calculating a character height of each first character; and
d1-2. comparing the character height of each first character with a predetermined height, and categorizing the first character as a small character if the character height of the first character is smaller than the predetermined height;
d2. performing a small character categorization if the first character is a small character; and
d3. performing a non-small character categorization if the first character is not a small character; and
e. comparing each first character with a plurality of second characters in a database belonging to the corresponding character category of the first character to obtain the second character corresponding to the first character and accordingly to recognize the first character, wherein the database records a plurality of character categories and the second characters in each of the character categories.
1 Assignment
0 Petitions
Accused Products
Abstract
A method for recognizing characters is provided. All the characters to be recognized are categorized into a plurality of character categories according to the relative positions of the characters in the typographical lines before the characters are recognized. When recognizing the characters, a character is compared with only those characters in the corresponding character category of the character in the character database. Therefore, the range and number of characters to be compared are reduced, and the accuracy and speed for recognizing characters are improved.
12 Citations
11 Claims
-
1. A character recognition method, comprising:
- using an optical character recognition device for
a. obtaining a image with printing words; b. scanning a line of the printing words , wherein the line of printing words comprises a plurality of first characters; c. generating a plurality of typographical lines by using the first characters; d. determining a character category of each first character according to a relative position of the first character in the typographical lines, the step d. further comprising; d1. determining whether or not each first character is a small character, the step d1. further comprising; d1-1. calculating a character height of each first character; and d1-2. comparing the character height of each first character with a predetermined height, and categorizing the first character as a small character if the character height of the first character is smaller than the predetermined height; d2. performing a small character categorization if the first character is a small character; and d3. performing a non-small character categorization if the first character is not a small character; and e. comparing each first character with a plurality of second characters in a database belonging to the corresponding character category of the first character to obtain the second character corresponding to the first character and accordingly to recognize the first character, wherein the database records a plurality of character categories and the second characters in each of the character categories. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
- using an optical character recognition device for
Specification