3-d pose refinement

Details 3-d pose refinement 3-d pose refinement

G - Physics

01

S

G01S 17/06 (2006.01) G01S 17/32 (2006.01) G06T 7/00 (2006.01) G06F 15/72 (1990.01)

Patent

CA 2135528

Abstract of the Disclosure 3-D Pose Refinement A method for determining the 3-D pose of an object is provided assuming that an approximate pose of the object is known. As a laser range camera scans the object, depth profiles of the object are obtained and stored in a memory. Synthetic profiles are obtained from a model of the object that has been oriented to the assumed pose of the object, by using a conventional raster rendering technique to obtain a series of slices of the model. Once this synthetic profile signature of the model of the object is generated, a comparison is performed between this profile signature and the profiles obtained from the laser range camera. When a suitable match is found, a correction to the 3-D pose is calculated from the offset parameters associated with the match; further refinement may be performed by repeating the process.

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