Compensation of Motion Artifacts for Time-of-Flight Cameras

Authors:
Marvin Lindner;Andreas Kolb
Affiliations:
Institute for Vision and Graphics Computer Graphics and Multimedia Systems Group, University of Siegen, Germany;Institute for Vision and Graphics Computer Graphics and Multimedia Systems Group, University of Siegen, Germany
Venue:
Dyn3D '09 Proceedings of the DAGM 2009 Workshop on Dynamic 3D Imaging
Year:
2009

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Abstract

During the last years, Time-of-Flight sensors achieved a significant impact onto research fields in computer vision. For dynamic scenes however, most sensor's working principles lead to significant artifacts in respect to sensor or object motion --- artifacts that commonly affect distance reliability and thus affect downstream processing tasks in a negative way. We therefore introduce a compensation approach for sensors based on the Photonic Mixing Device (PMD). Out technique deals with both, lateral and axial motion artifacts. The lateral compensation tracks object motion on the level of phase images and accordingly adjusts the depth image computation in order to reduce artifacts and enhances depth reliability. The axial motion compensation is based on an axial motion estimation and a theoretical model for axial motion deviation errors. Both components utilize fast optical flow algorithms.