Automated graph local constellation (GLC) method of correspondence search for registration of 2-D and 3-D data

摘要

AUTOMATED GRAPH LOCAL CONSTELLATION (GLC) METHOD OF CORRESPONDENCE SEARCH FOR REGISTRATION OF 2-D AND 3-D According to an embodiment, a 2-dimensional (2-D) image (100) of a geographical region (102) 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. TRANSFORM A 2-DIMENSIONAL (2-D) IMAGE OF A GEOGRAPHICAL REGION VIA A REGIONAL MAXIMA TRANSFORM (RMT) OR AN EDGE SEGMENTING AND BOUNDARY FILLING (ESBF) TRANSFORM TO PRODUCE A FILTERED 2-D IMAGE ITERATIVELY ERODE AND OPEN THE FILTERED 2-D IMAGE TO PRODUCE A PROCESSED EO 2-D IMAGE EXTRACT 2-D OBJECT SHAPE MORPHOLOGY FROM THE PROCESSED EO 2-D IMAGE EXTRACT 2-D SHAPE PROPERTIES FROM THE 2-D OBJECT SHAPE GENERATE A HEIGHT SLICE OF A 3-DIMENSIONAL POINT CLOUD COMPRISING 3-D COORDINATE AND INTENSITY MEASUREMENTS OF THE GEOGRAPHICAL EXRACT SLICE OBJECT SHAPE MORPHOLOGY FROM THE HEIGHT SLICE EXTRACT SLICE SHAPE PROPERTIES FROM THE SLICE OBJECT SHAPE CONSTELLATION MATCH THE 2-D IMAGE TO THE HEIGHT SLICE BASED ON THE 2-D SHAPE PROPERTIES AND THE SLICE SHAPE PROPERTIES