发明名称 |
Method and apparatus for automatic object identification |
摘要 |
A method and system for processing image data to identify objects in an image. Terrain types are identified in the image. A second image is generated identifying areas of the image which border regions of different intensities by identifying a gradient magnitude value for each pixel of the image. A filtered image is generated from the second image, the filtered image identifying potential objects which have a smaller radius than the size of a filter and a different brightness than background pixels surrounding the potential objects. The second image and the filtered image are compared to identify potential objects as an object. A potential object is identified as an object if the potential object has a gradient magnitude greater than a threshold gradient magnitude, and the threshold gradient magnitude is based on the terrain type identified in the portion of the image where the potential object is located.
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申请公布号 |
US2011085703(A1) |
申请公布日期 |
2011.04.14 |
申请号 |
US20100923502 |
申请日期 |
2010.09.24 |
申请人 |
LOCKHEED MARTIN CORPORATION |
发明人 |
WIEDEMANN MELISSA;PHURROUGH LARRY;GRATSCH COLLEEN FLYNN;SKOBLICK RICHARD;LEE HARRY C. |
分类号 |
G06K9/00;G06K9/68 |
主分类号 |
G06K9/00 |
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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