Direct calibration of a laser ablation system in the projective voltage space

Abstract

Laser ablation is a widely adopted technique in many contemporary medical applications. However, it is new to use a laser to cut bone and perform general osteotomy surgical tasks with it. In this paper, we propose to apply the direct linear transformation algorithm to calibrate and integrate a laser deflecting tilting mirror into the affine transformation chain of a sophisticated surgical navigation system, involving next generation robots and optical tracking. Experiments were performed on synthetic input and real data. The evaluation showed a target registration error of 0.3mm ± 0.2mm in a working distance of 150 mm.