Model-based calibration of a range camera

摘要

Introduces a new method for the calibration of a range camerabased on active triangulation. The technique is based on a model derivedfrom the geometry of the synchronized scanner. From known positions of acalibration bar, a logistic equation is fitted with values of spotpositions read from a linear position detector at a number of angularpositions of a scanning mirror. Furthermore, with an approximate form ofthe general equations describing the geometry, a series of designguidelines are derived to help a designer conduct a preliminary study ofa particular range camera. Experimental results demonstrating thetechnique are found to compare favorably with theoretical predictions