发明名称 |
DETECTION SYSTEM AND METHOD USING GRADIENT MAGNITUDE SECOND MOMENT SPATIAL VARIANCE DETECTION |
摘要 |
A detection system includes a detection processor configured to receive a frame of image data, that includes a range/Doppler matrix, perform a rate-of-change of variance calculation with respect to at least one pixel in the frame of image data, and compare the calculated rate-of-change of variance with a predetermined threshold to provide output data. The range/Doppler matrix may include N down-range samples and M cross-range samples. The detection processor may calculate a rate-of-change of variance over an N×M window within the range/Doppler matrix. |
申请公布号 |
US2012105275(A1) |
申请公布日期 |
2012.05.03 |
申请号 |
US201113288009 |
申请日期 |
2011.11.02 |
申请人 |
BRUYERE DONALD P.;ASHCRAFT IVAN S.;TREECE JOHN B.;RAYTHEON COMPANY |
发明人 |
BRUYERE DONALD P.;ASHCRAFT IVAN S.;TREECE JOHN B. |
分类号 |
G01S13/90 |
主分类号 |
G01S13/90 |
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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