发明名称 |
Method and apparatus for pattern recognition utilizing gaussian distribution functions |
摘要 |
The present invention provides a method and apparatus for performing pattern recognition on given information such as speech data or image data with a reduced amount of calculations of the degree of matching associated with reference patterns. The method and apparatus provides a high speed operation without an increase in the amount of calculations of the degree of matching even when there are a great number of reference patterns. In this invention, the process of calculating the degree of matching includes: a scalar quantization step in which the value of each dimension of an input feature vector is scalar-quantized; a table look-up step in which a table is subjected to a look-up operation on the basis of the quantized value obtained in the scalar quantization step so as to obtain an output value of a reference pattern function for each dimension; and a cumulative matching degree calculation step in which the output value of the reference pattern function obtained in the table loop-up step is accumulated for all dimensions, and the resultant cumulative value is finally employed as the degree of matching between the reference pattern and the input feature vector.
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申请公布号 |
US5991442(A) |
申请公布日期 |
1999.11.23 |
申请号 |
US19960640475 |
申请日期 |
1996.05.01 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
YAMADA, MASAYUKI;KOMORI, YASUHIRO |
分类号 |
G06T7/00;G06K9/62;G10L15/10;(IPC1-7):G06K9/68 |
主分类号 |
G06T7/00 |
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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