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Northern Digital Inc. (NDI) is a global leading innovator and manufacturer of advanced 3D measurement technology systems, with over 45,000 installations worldwide. Target3D, the home of motion capture, is an official distributor for NDI's OptoTrak and Ascension products.

In 2012, Ascension was acquired by Roper Industries Inc., becoming an affiliate company of NDI (Northern Digital Inc.) – a global leading innovator and manufacturer of advanced optical and electromagnetic 3D measurement technology systems.

Ascension Technology Corporation was a world-class manufacturer of electromagnetic tracking systems for the medical OEM and medical simulation markets. Ascension got its start in the military training market, developing head tracking technology for tactical aircraft simulators and really found its niche in the medical imaging and interventional market, where the company’s technological strengths of 3D accuracy and integration flexibility are leveraged to maximum effect.


Ascension was best known for its 3D Guidance® product suite, which included the driveBAY™ and trakSTAR™ electromagnetic (EM) tracking systems. These innovative EM solutions worked in conjunction with reusable Ascension sensors. Ascension solutions are integrated into a wide range of image-guided intervention and therapy systems for use in biopsy needle guidance, image fusion, oncology, obstetrics, and neurosurgery applications.


Northern Digital Inc. specialises in designing and manufacturing research-grade motion capture systems as opposed to animation-grade motion capture systems. The Optotrak Certus is a research-grade motion capture system.

The Optotrak Certus® motion capture system offers maximum flexibility for your motion capture applications through its unsurpassed accuracy, high-speed marker frequency, portable design, and virtually wireless marker option. Built with the superior accuracy and reliability of the renowned Optotrak 3020 series, Optotrak Certus is the gold standard among research scientists.

Browse the NDI products in our shop or call us and we'll talk you through the possibilities.

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