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3/29/10 Page 1 Markerless Motion Capture BioStage TM for the Life Sciences October 2010 Draft Version Computer Vision Systems.

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Presentation on theme: "3/29/10 Page 1 Markerless Motion Capture BioStage TM for the Life Sciences October 2010 Draft Version Computer Vision Systems."— Presentation transcript:

1 3/29/10 Page 1 Markerless Motion Capture BioStage TM for the Life Sciences October 2010 Draft Version Computer Vision Systems

2 3/29/10 Page 2 Markerless Motion Capture Overview kinematic systems Camera-basedSensor-based Marker-based Systems Goniometer – 1D, 2D Inertial Sensors Electromagn. Sensors – 3D Video Camera Infra-red Camera Marker-less Systems Aktiv-Marker Passiv-Marker BioStage Xsens MVN Animazoo IGS-190 Vicon MAC Qualisys Optitrack Polhemus motion sensors (accelerometers) and rotation sensors (gyroscopes) to calculate the position, orientation, and velocity Marker-based Systems PEAK SIMI

3 3/29/10 Page 3 Markerless Motion Capture Biomech analysis systems Kinetics Electro- myography Body- - Dimensions -Structure - Proportion Position, Angle, Velocity, etc. Forces, Moments, Pressure Distribution Muscle- action- potiential Data integration & Correlation Kinesiological Analysis  “Body”  “Motion”  “Forces”  “Neuromusc. Control” Anthro- pometry Kinematics BioStage

4 3/29/10 Page 4 Markerless Motion Capture Why Motion Capture?Why Motion Capture? Planes of Motion

5 3/29/10 Page 5 Markerless Motion Capture Why Motion Capture?Why Motion Capture? Joint Actions – i.e. hip http://www.brianmac.co.uk/musrom.htm http://www.physical- solutions.co.uk/articles/Understanding%20Planes%20and%20Axes%20of%20Movement. pdf

6 3/29/10 Page 6 Markerless Motion Capture Why Motion Capture?Why Motion Capture? Biomechanics Kinesiology Exercise Science Physical Therapy Physical Medicine & Rehabilitation Human Movement Science Health, Physical Education, and Recreation Biomedical Engineering BioStage - Research

7 3/29/10 Page 7 Markerless Motion Capture Why Motion Capture?Why Motion Capture? Orthopaedics Cerebral Palsy Neuroscience Physical and Occupational Therapy Rehabilitation Podiatry Chiropractic Posturology Sports Medicine BioStage – Clinical Applications

8 3/29/10 Page 8 Markerless Motion Capture Why Motion Capture?Why Motion Capture? Golf Baseball Pitching and Throwing Fitness Biking Tennis Soccer et altri BioStage – Sports Applications

9 3/29/10 Page 9 Markerless Motion Capture Why Motion Capture?Why Motion Capture? Applications and Benefits for Clinical Apps and the Academics

10 3/29/10 Page 10 Markerless Motion Capture Why Motion Capture?Why Motion Capture? Pre-and post surgery evaluations Rehabilitative Treatment Lower extremities - Gait Analysis Upper body Analysis Orthopaedic Joint Replacements Posture Analysis Orthotics and Prosthesis Development BioStage – Specific Clinical Use

11 3/29/10 Page 11 Markerless Motion Capture Why Motion Capture?Why Motion Capture? develop predictive models of pathology diagnose/quantify functional limitations identify multi-level motion problems document functional status support Healthcare Research Clinical Motion Analysis to…

12 3/29/10 Page 12 Markerless Motion Capture Why Motion Capture?Why Motion Capture? 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 Motion Analysis – General Benefits

13 3/29/10 Page 13 Markerless Motion Capture Why Motion Capture?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 3/29/10 Page 14 Markerless Motion Capture Why Motion Capture?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 3/29/10 Page 15 Markerless Motion Capture Why Motion Capture?Why Motion Capture? 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? Challenges

16 3/29/10 Page 16 Markerless Motion Capture Why Motion Capture?Why Motion Capture? Integration Software & Hardware

17 3/29/10 Page 17 Markerless Motion Capture Why Motion Capture?Why Motion Capture? TMM Motion Analysis Software OM Motion Tracking Force Plates Forces and Moments EMG Muscle Activity Video Integrated Motion Analysis Kinematics Kinetic

18 3/29/10 Page 18 Markerless Motion Capture Why Motion Capture?Why Motion Capture? Integration The MotionMonitor Real Time Animation KinematicsEMG Kinetics

19 3/29/10 Page 19 Markerless Motion Capture Why Motion Capture?Why Motion Capture? Integration Force Plates Measurement of floor reaction forces in 3 dimensions

20 3/29/10 Page 20 Markerless Motion Capture Why Motion Capture?Why Motion Capture? Integration EMG Wireless EMG electrodes

21 3/29/10 Page 21 Markerless Motion Capture Why Motion Capture?Why Motion Capture? Validation and Accuracy

22 3/29/10 Page 22 Markerless Motion Capture Why Motion Capture?Why Motion Capture? 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 3/29/10 Page 23 Markerless Motion Capture Why Motion Capture?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 3/29/10 Page 24 Markerless Motion Capture Why Motion Capture?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 3/29/10 Page 25 Markerless Motion Capture 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 Validation Goals

26 3/29/10 Page 26 Markerless Motion Capture 26 Organic Motion - BioStage Validation and AccuracyOverview 8/27/2010

27 3/29/10 Page 27 Markerless Motion Capture 27 Organic Motion - BioStage Validation and AccuracyOverview 8/27/2010

28 3/29/10 Page 28 Markerless Motion Capture 28 Organic Motion - BioStage Validation and AccuracyOverview 8/27/2010

29 3/29/10 Page 29 Markerless Motion Capture 29 Organic Motion - BioStage 2D Video Analysis / Full Range of Motion Gait Squatting Pendulum motion 8/27/2010

30 3/29/10 Page 30 Markerless Motion Capture 30 Organic Motion - BioStage Validation and AccuracyOverview 8/27/2010

31 3/29/10 Page 31 Markerless Motion Capture 31 Organic Motion - BioStage Validation and AccuracyOverview 8/27/2010

32 3/29/10 Page 32 Markerless Motion Capture 32 Organic Motion - BioStage Validation and AccuracyOverview 8/27/2010

33 3/29/10 Page 33 Markerless Motion Capture 33 Organic Motion - BioStage Validation and AccuracyOverview 8/27/2010

34 3/29/10 Page 34 Markerless Motion Capture 34 Organic Motion - BioStage Validation and AccuracyOverview 8/27/2010

35 3/29/10 Page 35 Markerless Motion Capture 35 Organic Motion - BioStage Validation and AccuracyOverview 8/27/2010

36 3/29/10 Page 36 Markerless Motion Capture 36 Organic Motion - BioStage Validation and AccuracyOverview 8/27/2010

37 3/29/10 Page 37 Markerless Motion Capture 37 Organic Motion - BioStage Validation and AccuracyOverview 8/27/2010

38 3/29/10 Page 38 Markerless Motion Capture Why Motion Capture?Why Motion Capture? Tradeshows

39 3/29/10 Page 39 Markerless Motion Capture 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 ) Important Tradeshows


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