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supervised by: Asst. Prof. Dr. Ergin Tönük Prof. Dr. Turgut Tümer

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Presentation on theme: "supervised by: Asst. Prof. Dr. Ergin Tönük Prof. Dr. Turgut Tümer"— Presentation transcript:

1 supervised by: Asst. Prof. Dr. Ergin Tönük Prof. Dr. Turgut Tümer
Comparison of Kinematic Results Between METU-KISS & Ankara University-VICON Gait Analysis Systems EZGİ CİVEK supervised by: Asst. Prof. Dr. Ergin Tönük Prof. Dr. Turgut Tümer

2 Outline Introduction Gait Analysis Motion Capture Systems
Comparison of the two systems Comparison of the kinematic results Future Studies

3 Objective To compare the kinematic results of two different gait analysis systems. Data Acquisition Data Analysis Performance Methodology Exchanging the motion data between KISS & VICON. Studying the same subject on each system.

4 Objective To make KISS compatible with a common widely used file format. To enlarge the database available.

5 Gait Analysis Analysis of the mechanics of human body during walking, stair ascending/descending, obstacle avoidance.

6 Gait Analysis Gait analysis plays a key role in:
Diagnosis of disorders in lower extremity Decision making before operations Evaluation of prosthetic joint replacements Comparison of gait parameters before and after operations Studies in orthotics, amputees, athletic injuries

7 Human Gait

8 Motion Capture Systems
HARDWARE CCD Cameras Markers Force Plate(s) EMG Unit SOFTWARE Data Acquisition Calculation of Gait Parameters

9 Marker Locations

10 KISS VICON Commercial system 5 cameras 2 force plates VICON 370
Vicon Clinical Manager Helen Hayes Marker set Locally developed in ME 6 cameras 2 force plates KISS – DAQ KISS – GAIT Helen Hayes Marker set

11 input for kinematic data analysis
File Formats KISS *.hvd *.yor VICON *.tvd *.c3d Raw video data (input for 3D reconstruction) Processed data file (3D trajectory data) input for kinematic data analysis

12 C3D - A 3D Biomechanics Data Standard
Developed by Andrew Dainis in 1987. Used by almost all commercial motion capture systems.

13 Converting *.yor file to *.c3d
Export the coordinate data from *.yor file as *.txt format. Arrange the data in text file according to c3d format. Create *.c3d file by a program called ‘C3D Editor’.

14 KISS VICON

15 VICON KISS

16 Future Studies Converting *.c3d to *.yor file format.
Studying the same subject in both systems. Writing a program for the arrangenments of files required in the conversion process.

17 THANK YOU!

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