发明名称 |
Optical character recognition system and method using special normalization for special characters |
摘要 |
Character normalization is accomplished using a scaling program. Data input to a scaling program are character images and character parameters (height of result buffer frame, character height, character width and character location), and parameters calculated for scaling (the size of a normalized portion to be output; and the top and bottom and the left and right hand spaces of a normalization pattern to be output). In the present invention, normalization is performed by adjusting the parameters, without especially changing the processing flow. A threshold value is provided in accordance with the size and the location of an input character in order to change a calculation method for parameters that are to be transmitted to the scaling program. Since the values at the boundary of the threshold value are continuous, no discontinuity appears in a resultant normalized image that covers the range from small characters to large characters, and seamless normalization is therefore accomplished.
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申请公布号 |
US6011879(A) |
申请公布日期 |
2000.01.04 |
申请号 |
US19970805196 |
申请日期 |
1997.02.27 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
NEMOTO, NAOYUKI;TAKAHASHI, HIROYASU |
分类号 |
G06K9/42;(IPC1-7):G06K9/32 |
主分类号 |
G06K9/42 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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