Tek Video Dizisinden Hareket Yakalanması

ABSTRACTMOTION CAPTURE FROM SINGLE VIDEOSEQUENCE˙Ibrahim DemirM.S. in Computer EngineeringSupervisor: Assoc. Prof. Dr. Uğur Güdükbayg uuAugust, 20063D human pose reconstruction is a popular research area since it can be usedin various applications. Currently most of the methods work for constrained en-vironments, where multi camera views are available and camera calibration isknown, or a single camera view is available, which requires intensive user effort.However most of the currently available data do not satisfy these constraints,thus they cannot be processed by these algorithms. In this thesis a frameworkis proposed to reconstruct 3D pose of a human for animation from a sequence ofsingle view video frames. The framework for pose construction starts with back-ground estimation. Once the image background is estimated, the body silhouetteis extracted by using image subtraction for each frame. Then the body silhou-ettes are automatically labeled by using a model-based approach. Finally, the 3Dpose is constructed from the labeled human silhouette by assuming orthographicprojection. The proposed approach does not require camera calibration. Theproposed framework assumes that the input video has a static background andit has no significant perspective effects and the performer is in upright position.Keywords: motion capture, framework, single camera, uncalibrated camera,vision-based, animation.1