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    Institute for Technical Logistics

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    • iClone Motion LIVE Get real-time mocap data into iClone Motion LIVE.
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  • Products
    Cameras
    • Arqus Extreme performance
    • Miqus Capture more with less.
    • Miqus video Add video to your mocap system
    • Miqus Hybrid Marker-based and markerless tracking
    • MRI Measure inside & outside MRI scanners.
    • Underwater Motion capture for underwater measurements
    • Compare cameras Side-by-side comparison
    Analysis
    • Online reporting All your reports. Safe in the cloud.
    • Qualisys Track Manager (QTM) User-friendly mocap software
    • Baseball Pitching & hitting analysis
    • Cricket Batting and bowling analysis
    • Cycling Full-body cycling analysis
    • Functional assessment Assessment of various activities and tasks
    • Gait Clinical gait & gait research
    • Golf Full swing & putting analysis
    • Running Full-body running analysis
    • Project Automation Framework Write your own analysis modules for QTM
    Accessories
    • Markers High quality passive & active markers
    • Mocap suits Our full motion capture apparel range
    • All accessories Browse all accessories
    Collapse
  • Company
    About us
    • Qualisys is a leading provider of precision motion capture and 3D positioning tracking system.

      We have supplied a variety of industries with high-end camera systems and expertise for more than 30 years.

      Learn more about us

    Contact
    • Contact us Offices & contact persons
    • Distributors Find your distributor
    • Partners Our partners
    Qualisys
    • Careers Working at Qualisys
    • Mocap Ambassador Award Celebrating mocap enthusiasts
    • Policies & Terms Read the fine print
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    Events
    • IPIN

      Sep 25–28, 2023
      25

      OCEANS 2023 - US…

      Sep 25–28, 2023
      25

      IROS 2023

      Oct 2–4, 2023
      2

      SIAMOC 2023

      Oct 4–7, 2023
      4

      ICAS

      Oct 18–19, 2023
      18
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    Module documentation
    • Baseball
    • Cycling
    • Functional Assessment
    • Gait
    • Golf
    • Running
    • Project Automation Framework
    • Calqulus Pipelines
    Collapse
  • Life sciences
    Clinical
    • Functional Assessment Assessment of various activities and tasks
    • Gait Clinical gait & gait research
    • Equine lameness Clinical lameness detection (QHorse)
    Sports
    • Baseball Pitching & hitting analysis
    • Cycling Analysis Full-body cycling analysis
    • Golf Full swing & putting analysis
    • Running Full-body running analysis
    • Swimming Capturing motion in water
    Research
    • Animal biomechanics Analyze animal movement
    • Human biomechanics & sports research Analyze human movement
    • MRI Tracking movements inside an MRI scanner
    • Sound & Motion Performance motion capture
    3rd party integrations
    • EMG Measure muscle activity
    • Eye trackers Combine eye tracking & motion data
    • Force plates Complete your analysis with kinetics
    • IMUs Record data from IMU sensors
    • Instrumented Treadmills Capture forces with high-end treadmills
    Collapse
  • Engineering
    Robotics
    • Robotics & UAV Robotics & flight tracking
    Marine & wind
    • Marine vessels & structures Testing & validation in ocean labs & basins
    • Wind Power Blade deflection & gearbox vibrations
    Other applications
    • Automotive Testing & validation in the automotive industry
    • OEM Qualisys technology as OEM components
    3rd party integrations
    • LabVIEW Get real-time mocap data into LabVIEW.
    • MATLAB Get real-time mocap data MATLAB.
    • Real-time SDK for QTM Feed your apps with real-time mocap data.
    • ROS resources All you need to integrate with ROS projects
    Collapse
  • Entertainment
    Applications
    • Animation Mocap for games & cinematics
    • Virtual Reality (VR) Tracking HMDs, props & actors
    Accessories
    • Markers High quality passive & active markers
    • Mocap suits Our full motion capture apparel range
    • All accessories Browse all accessories
    3rd party integrations
    • iClone Motion LIVE Get real-time mocap data into iClone Motion LIVE.
    • Maya Get real-time mocap data into Maya
    • MotionBuilder Get real-time mocap data into MotionBuilder.
    • Unity Get real-time mocap data into Unity.
    • Unreal Engine Get real-time mocap data into Unreal Engine.
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Home / Customer story / m3 Lab

Ahoy! Eyes in the boat!

The Multi-Modal Motion Synthesis Laboratory (M3 Lab), part of the Sensory Motor Systems Lab at the ETH in Zurich, Switzerland is a controlled research environment comprised of display, recording, and tracking technologies that create a multi-modal, user-cooperative system for sport applications.

These are questions that occupy the minds of researchers in the Multi-Modal Motion Synthesis Laboratory the M3 Lab, part of the Sensory Motor Systems Lab at the ETH in Zurich, Switzerland. Answers are found in a controlled research environment that comprises a variety of display, recording, and tracking technologies. When combined they create a multi-modal, user-cooperative system for sport applications. The M3 Rowing Simulator was the first application that was implemented in which the sensitive dynamics of rowing combined with haptic, visual, and acoustic feedback provides a challenging background for a sports simulation scenario. Qualisys is proud to be part of this exciting and almost futuristic journey, to bring sports and general movement training to a new level.

Visual, Acoustic, and Haptic Feedback

The M³ Lab differs from other so-called cave environments that usually comprise only visual and auditory modalities, by adding a third modality addressing the user’s haptic senses. This is brought to reality thanks to the Reactive Rope Robot (r³) that connects multiple ropes to an end-effector. In the rowing-simulation, the rope robot is attached to the oar blade where it generates forces to simulate water resistance.

m3 Lab - feature photo

The M³ Lab system further consists of a visual display surrounding the viewer with 3D visual information such as a river scenario. A sound system exposes the user to virtual sound sources such as a cheering audience or water splashing. A ten-camera Qualisys 3+ motion tracking system monitors the orientation and position of various segments or single markers of the rower.

Low latency real-time system

In today’s consumer-driven market we are spoiled with choices and the decision-making process is often a difficult and lengthy one. In order not to be side-tracked during this process, consumers should have a very clear picture in mind of what goals they want to bring to reality with their new purchase – long and short-term.

Peter Wolf, Senior Researcher at the Sensory-Motor Systems Lab, knew one thing for certain when he started looking for new technology for the M3 Lab – it had to meet and preferably exceed his criteria for low latency in a real-time system. Qualisys recognized, early on, the importance of the real-time performance / low latency combination and, therefore, foresaw a number of features to natively optimize the real-time performance. Once the Qualisys system was installed at ETH, the lab performed a series of latency tests to quantify the performance.

m3 Lab - feature photo

Latency Determination Test

ETH measured movements simultaneously using an incremental wire potentiometer (0.25 mm resolution, sampling at 1000 Hz) and a ten-camera Oqus-300 system running at 200 Hz. The wire potentiometer was directly linked to an xPC target; latency was assumed to be negligible. Marker positions were also received at the xPC target via UDP from a computer running Qualisys Track Manager, 2.1. Both data streams were sent from the xPC target to a host computer where latency was quantified.

The monitored movement was based on the sliding of a seat in a rowing boat, repetitively performed forward and backward over a distance of 0.6 m at about 1.6 Hz. Movement was performed along one axis of the global coordinate system defined for motion capture, thus, the related coordinates of the tracked object representing the seat’s movement (with markers placed on it) was compared to the potentiometer also measuring the seat’s movement. The experiments were repeated with additional, static objects that were also tracked.

At the host computer at the end of the chain, data from the Qualisys system running at 200 Hz was received every 5 ms (4 to 6 ms, 5th to 95th percentile). Latency of the motion capture system was determined also at the host computer. Depending on the number of supplementary static objects, latency varied from six to seven milliseconds. This equates to just a fraction over a one frame delay in real-time data capture to process and display of data.

We appreciate that Qualisys deals with our research-specific demands by optimizing data processing and implementing communication protocols that minimize latency during data streaming

Peter Wolf Senior Researcher, Sensory-Motor Systems Lab
Peter Wolf

Want to know more?

Read more about the work pursued at the Sensory Motor Systems lab at ETH Zurich by clicking the link below.

Sensory Motor Systems Lab

System info 10 x Oqus 3+
Software QTM (with OSC protocol)
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