170 likes | 362 Views
Comparison o f Kinematic Results Between METU-KISS & Ankara University-VICON Gait Analysis Systems. EZGİ CİVEK supervised by: Asst. Prof. Dr. Ergin Tönük Prof. Dr. Turgut Tümer. Outline. Introduction Gait Analysis Motion Capture Systems Comparison of the two systems
E N D
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
Outline • Introduction • Gait Analysis • Motion Capture Systems • Comparison of the two systems • Comparison of the kinematic results • Future Studies
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.
Objective To make KISS compatible with a common widely used file format. To enlarge the database available.
Gait Analysis Analysis of the mechanics of human body during walking, stair ascending/descending, obstacle avoidance.
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
Motion Capture Systems SOFTWARE • Data Acquisition • Calculation of Gait Parameters HARDWARE • CCD Cameras • Markers • Force Plate(s) • EMG Unit
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
File Formats input for kinematic data analysis
C3D - A 3D Biomechanics Data Standard • Developed by Andrew Dainis in 1987. • Used by almost all commercial motion capture systems.
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’.
VICON KISS
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.