发明名称 |
DETECTING AN INTEREST POINT IN AN IMAGE USING EDGES |
摘要 |
Technology is described for detecting an interest point in an image using edges. An example method can include the operation of computing locally normalized edge magnitudes and edge orientations for the image using a processor to form a normalized gradient image. The normalized gradient image can be divided into a plurality of image orientation maps having edge orientations. Orientation dependent filtering can be applied to the image orientation maps to form response images. A further operation can be summing the response images to obtain an aggregated filter response image. Maxima can be identified in spatial position and scale in the aggregated filter response image. Maxima in the aggregated filter response image can be defined as interest points. |
申请公布号 |
US2012281872(A1) |
申请公布日期 |
2012.11.08 |
申请号 |
US201113099365 |
申请日期 |
2011.05.03 |
申请人 |
ZITNICK, III CHARLES LAWRENCE;MICROSOFT CORPORATION |
发明人 |
ZITNICK, III CHARLES LAWRENCE |
分类号 |
G06K9/00 |
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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