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Optotrak Certus Overview

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.

Northern Digital Inc. specializes 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.

Highly Accurate and Reliable
With an accuracy of up to 0.1 mm and resolution of 0.01mm, the Optotrak Certus Motion Capture System continues to deliver the degree of precision that has become an Optotrak hallmark.

Backwards Compatible
Northern Digital Inc ensures that its existing customers can take advantage of new software and hardware features. We strive to ensure backwards compatibility of new features with previously developed systems.

A maximum marker frequency of 4600 Hz enables you to capture data at even higher speeds. In addition, the Optotrak Certus can track up to 512 markers and is pre-calibrated for fast set-up and ease of use.

Freedom from Wires
Optotrak Smart Markers, a unique inline wiring and branching technology, simplify experiment execution by providing complete freedom of movement for research subjects.

The size and weight of the Optotrak Certus makes it easy to move between locations. A wide variety of stands and mounts provide flexibility so the system can be positioned by a single person and ready for use in minutes.

Easy to Use
The Optotrak Certus is available with a range of intelligent strobers, enabling you to configure the marker activation order through provided software. For existing Optotrak 3020 users, the Optotrak Certus offers backwards compatibility so that you can enjoy many of the benefits of the new system with your existing configurations.

Research-Grade Data
The Optotrak Certus provides exceptional spatial and temporal accuracy. You can be sure that Optotrak Certus data is objective and accurate.

True Real-time Data
The Optotrak Certus delivers true real-time data 100% of the time. The exceptionally low latency of this data makes it ideal for virtual reality and other feedback applications.

No Data-Sorting
Spend research time doing research instead of data-sorting! The Optotrak Certus will NEVER misidentify or lose identity of markers. This means that time consuming and error prone manual data sorting is never required. As soon as you have collected data from your subject, you are ready to start analyzing.

No Reflections
The Optotrak Certus is not hampered by false signals created by reflections, thus there is no need for any special preparations to your lab.

Proven Reliability from NDI
First introduced in 1989, the Optotrak quickly established itself as the gold standard in accurate and reliable measurement systems for medical and human motion research.



optotrak_certus_brochureBrochure Download

For more information, download our product brochure.



Optotrak Certus Features

Optotrak Certus Motion Capture Features

  • pre-configured system allows immediate use right out of the box
  • automatic recognition of programmed tools
  • small and light allowing one person to easily move system
  • various stands and mounting options allowing for numerous set-up possibilities
  • unique inline wiring and branching technology

Optotrak Certus System Applications

Optotrak technology is the premier choice of industries, universities and research institutions around the world. As research in medicine, biomechanics and industry advances, new applications for the Optotrak Certus motion capture system are continuously in development. Incorporating specialized sensor technology and sophisticated optics design, the Optotrak Certus delivers superior performance in 3D tracking and measurement.


Optotrak Certus Software

Included Software

Every Optotrak Certus Motion Capture System comes with the NDI Optotrak Software package, which includes the following programs:

  • NDI First Principles: provides an easy way to observe, record, play back, and manage data produced by an Optotrak or 3D Investigator systems. First Principles also allows for easy integration of 3rd party devices, such as force platforms, EMG systems, eye-trackers, and many others.
  • DataView: allows viewing of Optotrak motion capture data files by frame or by marker, as graph or text.
  • 6D Architect: simplifies the tool characterization process, as well as the creation of tool definition files.

Optional Software

The following are also compatible with the Optotrak Certus Motion Capture System:

  • Optotrak Application Programmer’s Interface (OAPI) by NDI
  • Visual3D™ by C-Motion
  • Vizard™ by WorldViz
  • Motion Builder® by AutoDesk®
  • Caren platform products by Motek
  • Easy import into MatLab®
  • Integrates with LabView™ using OAPI

Optotrak Certus Technical Specifications

3D Accuracy Up to 0.1 mm
Marker Frequency 4600 Hz
Maximum Frame Frequency 4600/(number of markers + 1.3)
Resolution 0.01 mm
Position Sensor
Measurement Volume certus_fullvolume
Dimensions (LxWxH) 1126 mm x 200 mm x 161 mm
Weight 18 kg
Mounting Options
  • Portable floor mount for 6DOF in Position Sensor orientation
  • Wall mount for 2DOF in Position Sensor orientation
Maximum number of Position Sensors 8 (used simultaneously)
System Control Unit
Dimensions(LxWxH) 297 mm x 236 mm x 91 mm
Weight 3.4 kg
Strobers with System 2
Strober Ports 3
Strober Types
  • Wireless or wired marker strober
  • Tool strober
  • 3020 strober adapter
Markers & Rigid Bodies
Markers with System 30
Maximum number of markers 512
Maximum number of rigid bodies 170 (assuming 3 markers/rigid body)
Rigid body features
  • Provides 6 degrees of freedom (6DOF) tracking of body segments or objects
  • Can incorporate “imaginary markers”
  • Can be used for relative tracking (tracking one body part or object relative to another)
  • Pre-calibrated rigid bodies available
  • Custom rigid bodies can be built using 3-20 markers
Real-time Data Streaming to 3rd Party Software Included
Integrated Video Plug-in Optional
Communication Protocol Ethernet, USB
Cross Platform Capability Communicates with all Optotrak Certus and Optotrak 3020 products
Electrical Safety Approvals

  • IEC 61010-1″Safety requirements for electrical equipment for measurement, control, and laboratory use – Part 1: General requirements”
  • CAN/CSA C22.2 NO. 1010.1 “Safety Requirements for Electrical Equipment for Measurement, Control and Laboratory Use – Part 1: General Requirements”
  • UL 61010A-1 “Electrical Equipment For Laboratory Use; Part 1: General Requirements”
Electromagnetic Compatibility Approvals

  • IEC 61326 “Electrical equipment for measurement, control and laboratory use – EMC requirements”
  • FCC Part 15, Subpart B, Class A Unintentional Radiators
  • CISPR 22/EN 55022 Class A, Group 1 ITE equipment “Harmonized standard covers RF emissions standards for Information Technology Equipment (ITE)”

Legal Disclaimer
NDI tracking and measurement products (listed below) are general metrology components that can be integrated into customer products, research experiments, and/or as components of medical devices that require precision measurement and tracking. While NDI components and technology can be integrated into original equipment manufacturer (OEM) medical devices, they are not specifically intended for a given application and, as such, have not been developed or manufactured in accordance with medical device standards.  It remains the responsibility of the OEM customer or end-user to determine and test the suitability of NDI components and technology for their intended use, including performing any required ethics approval, verification, and validation required to demonstrate suitability and compliance. System-level testing, certification, and validation are the responsibility of the original equipment manufacturer or the applicable end-user and should be completed prior to use of NDI products or technologies in any application.