发明名称 |
Signal detection method, signal detection system, signal detection processing program, and recording medium recorded with program thereof |
摘要 |
A signal detection system of the invention comprises: a target signal feature quantity calculation section which derives a feature quantity series from a target signal; a stored signal feature quantity calculation section which derives a feature quantity series from a stored signal; a target signal histogram calculation section which searches for a histogram of feature quantities in a target signal feature quantity series; a stored signal histogram series calculation section which obtains a histogram series in regard to a stored signal feature quantity series, by calculating a histogram of feature quantities; a stored signal histogram grouping section which groups histogram series, for which a similarity level satisfies a criteria; a stored signal histogram group selection section which selects groups which include an area to be output from a histogram group; a stored signal collation section which performs collation with respect to histograms of a histogram group, and obtains a similarity value; and a collation result output section which outputs the area collated by the similarity value, as a detection result.
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申请公布号 |
US7653241(B2) |
申请公布日期 |
2010.01.26 |
申请号 |
US20050588182 |
申请日期 |
2005.07.13 |
申请人 |
NIPPON TELEGRAPH AND TELEPHONE CORPORATION |
发明人 |
KASHINO KUNIO;KIMURA AKISATO;KUROZUMI TAKAYUKI |
分类号 |
G06K9/00 |
主分类号 |
G06K9/00 |
代理机构 |
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