发明名称 |
Method and system for identifying objects in an image |
摘要 |
Methods and apparatus for identifying objects in an image include processing the image with a gradient operator to produce a gradient magnitude and direction for each pixel. A number of different gradient directions in a portion of the processed image is determined. The portion of the processed image is identified as an object if the number of different gradient directions exceeds a threshold number of gradient directions. The determination of the gradient directions can be simplified by employing a lookup table. |
申请公布号 |
EP1462994(A3) |
申请公布日期 |
2008.08.13 |
申请号 |
EP20040005016 |
申请日期 |
2004.03.03 |
申请人 |
LOCKHEED MARTIN CORPORATION |
发明人 |
LEE, HARRY C. |
分类号 |
G06T7/00;G06K9/32;G06K9/40;G06K9/48;G06K9/68;G06T5/00 |
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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