1. BioStageTM for the Life Sciences October 2010 Draft Version
Computer Vision Systems
BioStageTM for the Life Sciences
October 2010
Draft Version

2. Overview kinematic systems
Camera-based
Sensor-based
Video Camera
Infra-red
Camera
Goniometer – 1D, 2D
Inertial Sensors
Marker-less Systems
Marker-based Systems
Marker-based Systems
Electromagn.
Sensors – 3D
Xsens MVN
Animazoo IGS-190
PEAK
SIMI
motion sensors (accelerometers) and rotation sensors (gyroscopes) to calculate the position, orientation, and velocity
BioStage
Aktiv-Marker
Polhemus
Vicon
MAC
Qualisys
Optitrack
Passiv-Marker

3. Biomech analysis systems
Anthro- pometry
Kinematics
Kinetics
Electro-myography
“Body”
“Motion”
“Forces”
“Neuromusc Control”
BioStage
Body- - Dimensions
-Structure - Proportion
Position, Angle, Velocity, etc.
Forces, Moments, Pressure Distribution
Muscle- action- potiential
Kinesiological Analysis
Data integration & Correlation

4. Why Motion Capture?
Planes of Motion

5. Why Motion Capture? Joint Actions – i.e. hip

6. Why Motion Capture? BioStage - Research Biomechanics Kinesiology
Exercise Science
Physical Therapy
Physical Medicine & Rehabilitation
Human Movement Science
Health, Physical Education, and Recreation
Biomedical Engineering

7. BioStage – Clinical Applications
Why Motion Capture?
BioStage – Clinical Applications
Orthopaedics
Cerebral Palsy
Neuroscience
Physical and Occupational Therapy
Rehabilitation
Podiatry
Chiropractic
Posturology
Sports Medicine

8. BioStage – Sports Applications
Why Motion Capture?
BioStage – Sports Applications
Golf
Baseball Pitching and Throwing
Fitness
Biking
Tennis
Soccer
et altri

9. Applications and Benefits Clinical Apps and the Academics
Why Motion Capture?
Applications and Benefits
for
Clinical Apps and the Academics

10. BioStage – Specific Clinical Use
Why Motion Capture?
BioStage – Specific Clinical Use
Pre-and post surgery evaluations
Rehabilitative Treatment
Lower extremities - Gait Analysis
Upper body Analysis
Orthopaedic Joint Replacements
Posture Analysis
Orthotics and Prosthesis Development

11. Clinical Motion Analysis to…
Why Motion Capture?
Clinical Motion Analysis to…
develop predictive models of pathology
diagnose/quantify functional limitations
identify multi-level motion problems
document functional status
support Healthcare Research

12. Motion Analysis – General Benefits
Why Motion Capture?
Motion Analysis – General Benefits
Surgeon  optimize their techniques
Surgeon  design an optimal surgical plan
Surgeon  determine if and when surgery is necessary
Implant designer  improve devices
Coach  better quantify improvement / loss of performance during training
Patient  better educated by seeing changes
Athlete  better quantify improvement by comparing with other athletes
Club owner  find out if athlete is prone for injury
PT/Rehab doctor  better quantify improvement during therapy
Health care system  long-term improvement in cost and quality of treatment
Student  Easier access to motion capture technology

13. Benefits for Clinical Apps
Why Motion Capture?
Benefits for Clinical Apps
Reduced patient preparation time
Easier on patients with impairments
Easier for nurses to work with patients
More natural movement leads to higher data quality
Immediate results and reports available to doctor and patient for review
True and valid data comparison over repeated trials
Reduced cost for motion analysis for the patient and the doctor
Fun 3D immersive visuals encourage patients to exercise more often
Improved exercise experience, patients are more actively engaged in recovery regime

14. Benefits for the Academics
Why Motion Capture?
Benefits for the Academics
Markerless system allows all students to get hands-on experience with computerized motion analysis
Streamlined real-time capture process for fixed class times and research timelines
User-friendly interfaces ideal for multi-discipline and interdepartmental use
A state-of-the-art-solution to attract students, businesses, and professionals to the University

15. Why Motion Capture? Challenges Tracking children
Tracking subjects with impairments (cannot stand or walk straight, arms close to the torso, etc.)
Tracking of amputees
Tracking of subject in wheel chairs, using walker, cane, crutches or other equipment
Tracking internal / external rotation
What validation have you done?
What is the accuracy of the data?
Do you have any publications?

16. Integration Software & Hardware
Why Motion Capture?
Integration Software & Hardware

17. Integrated Motion Analysis
Why Motion Capture?
Integrated Motion Analysis
OM Motion Tracking
Kinematics
TMM Motion Analysis Software
Video
Force Plates Forces and Moments
Kinetic
EMG Muscle Activity

18. Integration The MotionMonitor
Why Motion Capture?
Integration The MotionMonitor
Real Time Animation
Kinematics
Kinetics
EMG

19. Integration Force Plates
Why Motion Capture?
Integration Force Plates
Measurement of floor reaction forces in 3 dimensions

20. Why Motion Capture?
Integration EMG
Wireless EMG electrodes

21. Validation and Accuracy
Why Motion Capture?
Validation and Accuracy

22. Why Motion Capture? BioStage Model BioStage Model
Tracking of 21 Segments
Segment length directly measured or derived from separate measurements
Static and dynamic (functional) user calibration
Length ratios based on Drillis and Contini (1966)

23. Joint Degree of Freedom
Why Motion Capture?
Joint Degree of Freedom
BioStage Model
Head/Neck: 3DoF
Neck/Upper Chest: 1DoF
Upper Chest/Mid Torso: 3DoF
Mid / Lower Torso: 3DoF
Hip Joint: 3DoF
Knee Joint: 3DoF
Ankle Joint: 1DoF
Shoulder Joint: 3DoF
Elbow Joint: 1DoF
Wrist: Locked to lower arm

24. Validation study in Cologne
Why Motion Capture?
Validation study in Cologne
Evaluation and Acurracy tests
Comparison with Vicon system
Jan 2010 – Jun 2010
Goal: Proof translational accuracy of 5mm and rotational accuracy of 3deg
Problem: Reference marker-less with marker-based
Institut für
Biomechanik und Orthopädie
German Sports Science University in Cologne
Prof. G.P. Brueggemann
Kai Oberländer

25. Validation Goals Show accuracy Validate vs existing systems
provide a fitting system that ensures precise, repeatable, consistent length measurements of human bones/segments.
deliver anthropometric measurements through a defined protocol in a totally "non-invasive" method in real-time.
evaluate BioStage, its performance, and to assess its accuracy, reliability and suitability for use in research, sports and clinical settings.
perform an assessment of errors that affect temporal, kinematic, and kinetic variables when estimated by means of the proposed markerless system compared to the existing markerbased motion capture systems using reflective markers currently used in motion analysis.
validate BioStage for biomechanical research, sports and clinical use

26. Organic Motion - BioStage
Validation and Accuracy
Overview
Organic Motion - BioStage
8/27/2010

27. Organic Motion - BioStage
Validation and Accuracy
Overview
Organic Motion - BioStage
8/27/2010

28. Organic Motion - BioStage
Validation and Accuracy
Overview
Organic Motion - BioStage
8/27/2010

29. Organic Motion - BioStage
2D Video Analysis / Full Range of Motion
Gait
Squatting
Pendulum motion
Organic Motion - BioStage
8/27/2010

30. Organic Motion - BioStage
Validation and Accuracy
Overview
Organic Motion - BioStage
8/27/2010

31. Organic Motion - BioStage
Validation and Accuracy
Overview
Organic Motion - BioStage
8/27/2010

32. Organic Motion - BioStage
Validation and Accuracy
Overview
Organic Motion - BioStage
8/27/2010

33. Organic Motion - BioStage
Validation and Accuracy
Overview
Organic Motion - BioStage
8/27/2010

34. Organic Motion - BioStage
Validation and Accuracy
Overview
Organic Motion - BioStage
8/27/2010

35. Organic Motion - BioStage
Validation and Accuracy
Overview
Organic Motion - BioStage
8/27/2010

36. Organic Motion - BioStage
Validation and Accuracy
Overview
Organic Motion - BioStage
8/27/2010

37. Organic Motion - BioStage
Validation and Accuracy
Overview
Organic Motion - BioStage
8/27/2010

38. Why Motion Capture?
Tradeshows

39. Important Tradeshows CSM (Combined Section Meeting)
ACSM (American College of Sports Med)
APTA (American PT Association)
ASB (American Society of Biomechanics)
ISBS (Internat. Society of Biom.in Sports)
GCMAS (Gait and Clinical MovAnal Society)
AACPDM (American Academy for Cerebral Palsy and Developmental Medicine )