Certain embodiments of the present invention provide methods and systems for calibration of an imaging camera or other image acquisition device. Certain embodiments include characterizing a transformation from a coordinate system of an imager to a coordinate system of a first sensor positioned with respect...http://www.google.com/patents/US20080064952?utm_source=gb-gplus-sharePatent US20080064952 - SYSTEMS AND METHODS FOR ON-LINE MARKER-LESS CAMERA CALIBRATION USING A POSITION TRACKING SYSTEM
