Laser micro-surgery can benefit from tracking and image-based methods that improve precision and safety. Advanced software together with stereo camera feedback allow for motion estimation reduce tracking errors. A highly precise parallel kinematics motion system (Model H-824 from Physik Instrumente) with 6 degrees of freedom was used to evaluate the performance. More information is available in this paper Stereo Vision-Based Tracking of Soft Tissue Motion with Application to Online Ablation Control in Laser Microsurgery by Institute of Mechatronic Systems at the University of Hannover, Germany.
Hexapod 6-axis parallel kinematics positioners are more compact and flexible compared to traditional stacks of single axis stages. Their ability to change the pivot point with a single software command is critical to applications from aligning optics or rotating a scalpel around a certain center of rotation.