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US09330484B2 Plane panorama location correction in three-dimensional mapping 有权
平面全景位置校正三维映射

Plane panorama location correction in three-dimensional mapping
Abstract:
Correction of the locations of panoramas and associated physical locations in a region are disclosed. The task of correcting the locations of the panoramas is divided into XY location correction followed by Z location correction. The panorama set is filtered to remove extraneous planes. In XY-plane correction, neighboring panoramas are identified using a neighbor graph, and the locations of sets of neighboring planes are constrained to be within a specified distance of one another, and a system of linear equations is constructed to represent the locations of the panoramas. A weighted absolute sum of the constraints is minimized across the entire system using a convex quadratic program solver to derive new locations for the planes. The location of ground planes is similarly corrected using a minimization of errors technique.
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