Invention Grant
- Patent Title: Automated graph local constellation (GLC) method of correspondence search for registration of 2-D and 3-D data
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Application No.: US13953757Application Date: 2013-07-30
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Publication No.: US09754165B2Publication Date: 2017-09-05
- Inventor: Terrell Nathan Mundhenk , Kyungnam Kim , Yuri Owechko , Hai-Wen Chen
- Applicant: The Boeing Company
- Applicant Address: US IL Chicago
- Assignee: The Boeing Company
- Current Assignee: The Boeing Company
- Current Assignee Address: US IL Chicago
- Agency: McDonnell Boehnen Hulbert & Berghoff LLP
- Main IPC: G06K9/00
- IPC: G06K9/00 ; G06K9/62 ; G06T7/33

Abstract:
According to an embodiment, a 2-dimensional (2-D) image of a geographical region is transformed via a regional maxima transform (RMT) or an edge segmenting and boundary filling (ESBF) transform to produce a filtered 2-D image. The filtered 2-D image is iteratively eroded and opened to produce a processed EO 2-D image, 2-D object shape morphology is extracted from the processed EO 2-D image, and 2-D shape properties are extracted from the 2-D object shape morphology. A height slice of a 3-dimensional (3-D) point cloud comprising 3-D coordinate and intensity measurements of the geographical region is generated, and slice object shape morphology is extracted from the height slice. Slice shape properties from the slice object shape morphology are extracted, and the 2-D image is constellation matched to the height slice based on the 2-D shape properties and the slice shape properties.
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