#TITLE_ALTERNATIVE#

• Main Author: (NIM : 13107109); Tim Pembimbing : Dr. Ir. Tatacipta Dirgantara; Dr. Eng. Sandro Mihradi, FERRYANTO
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/15684
• Institution: Institut Teknologi Bandung

Human gait is a complex movement that consists of many force or moment working on the bone and muscle. Therefore, gait is needed to be analyzed. There are many 3D human gait analysis systems that have been developed and commercialized. However,those systems are expensive. Hence, FTMD ITB Biomechanics Research Team develops affordable gait analysis system, begins with 2D gait analysis system and continues to develop 3D gait analysis system. This 3D system development starts with development of its image processing system. Image processing for 3D human gait analysis begins with human walking data acquisition. In experiment, two camcorders and flash light for camera synchronization are used. Markers are attached on seven segment of subject’s leg, i.e. pelvis, hip, midthigh, knee, tibia, malleolus, and lateral metatarsal. Image processing system begins with pre-processing data and it is continued with camera calibration, marker detection and tracking, 3D reconstruction, and post-processing module. Camera calibration module uses 3D Direct Linear Transformation to obtain 11 DLT parameters. In marker detection, RGB images are converted in binary images and operated by bridge morphology operation. Marker tracking uses least-square distance method and linear interpolation. 3D reconstruction uses marker tracking result and 11 DLT parameters. The result of 3D reconstruction is real Cartesian coordinate of markers that are attached on subject’s leg. The result shows that leg segment is not only do translation movement but also rotation movement.