Northern Digital Inc. specializes in the design and manufacture of precision optical 3D motion measurement technologies. Through our research into advanced optics systems, digital sensor technology, and innovative processing techniques we have developed the premier system for optical 3D measurement. Accuracy, reliability, simplicity, and flexibility have made our systems the foremost choice in applications ranging from neurosurgery to aeronautics. NDI technologies are employed in fields such as motion capture, biomechanics, digitizing, computer assisted surgery, and wind tunnel experiments. Researchers and industries worldwide rely on NDI for proven technology, an ongoing commitment to R&D, and an unmatched level of service and support.

Our innovative use of opto-electronic technology provides a measurement option free from the difficulties and drawbacks found in many other measurement systems.

	NDI's advanced optics and high speed sensor technology enable the system to use many markers and track rapid, complex motions.
	NDI's innovative measurement techniques provide a high degree of accuracy traceable to the National Institute of Standards and Technologies.
	NDI's automatic marker recognition capability enables the real-time monitoring of data being collected and high speed data conversions without the need of operator intervention.
	NDI's small, lightweight markers can be attached virtually anywhere allowing a single system to track many different objects, such as face, hands, and body all with the same system.

NDI currently has over 400 systems installed worldwide across numerous and diverse fields.
Some of these fields include: