9 Electronic tracking and orientation systems consisting of one or more cameras and trackable targets, such as a LEDs, passive reflective markers, or fiducials, for acquiring spatial tracking data representative of an object's motion, position, or orientation for later manipulation, display or analysis; downloadable computer software for manipulation, display or analysis of spatial tracking data representative of an object's motion, position, or orientation; motion capture systems and software; 3D tracking systems and downloadable software that consists of one or more cameras and trackable targets and software that runs on a personal computer or embedded processor; optical tracking systems comprising one or more cameras and trackable targets and downloadable computer software that provides 6DOF tracking data to the user or further downstream programs via an API, along with an optional user interface to configure and monitor the system, all of the foregoing for use in any field that benefits from optically tracked position data such as metrology, motion capture, and medical imaging; computer vision systems comprising one or more cameras and trackable targets and downloadable computer software that provides 6DOF tracking data to the user or further downstream programs via an API, along with an optional user interface to configure and monitor the system, all of the foregoing for use in any field that benefits from optically tracked position data such as metrology, motion capture, and medical imaging; measurement devices including one or more cameras and trackable targets or fiducials; motion tracking cameras; digital cameras