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Proceedings Article

Robust motion filtering as an enabler to video stabilization for a tele-operated mobile robot

[+] Author Affiliations
Romain Chereau, Toby P. Breckon

Cranfield Univ. (United Kingdom)

Proc. SPIE 8897, Electro-Optical Remote Sensing, Photonic Technologies, and Applications VII; and Military Applications in Hyperspectral Imaging and High Spatial Resolution Sensing, 88970I (October 15, 2013); doi:10.1117/12.2028360
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From Conference Volume 8897

  • Electro-Optical Remote Sensing, Photonic Technologies, and Applications VII; and Military Applications in Hyperspectral Imaging and High Spatial Resolution Sensing
  • Gary W. Kamerman; Ove K. Steinvall; Gary J. Bishop; John D. Gonglewski
  • Dresden, Germany | September 23, 2013

abstract

An increasing number of inspection and hazardous environment tasks use mobile robotic vehicles manually tele-operated via a live video feed from an on-board camera. The resulting video imagery frequently suffers from vibration artefacts compromising the accuracy and security of operation in addition to the viable duration for human tele-operation. Here we aim to automatically remove these unwanted visual effects using a novel real-time video stabilization approach. Prior work for hand-held and vehicle mounted cameras is ill-suited to the high-frequency, large magnitude (10-15% of image size) vibration encountered on the short wheelbase, non-suspended robotic platforms typically deployed for such tasks. Without prior knowledge of the robot ego-motion (or vibration characteristics) we develop a novel four stage filtering approach to identify robust Local Motion Vectors (LMV) for Global Motion Vector (GMV) estimation in successive video frames whilst preserving the required real-time responsiveness for tele-operation. Experimental results over a range of tele-operation scenarios show that the method provides both significant qualitative visual improvement and a quantitative reduction in measurable video image displacement (caused by vibration). © (2013) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation

Romain Chereau and Toby P. Breckon
" Robust motion filtering as an enabler to video stabilization for a tele-operated mobile robot ", Proc. SPIE 8897, Electro-Optical Remote Sensing, Photonic Technologies, and Applications VII; and Military Applications in Hyperspectral Imaging and High Spatial Resolution Sensing, 88970I (October 15, 2013); doi:10.1117/12.2028360; http://dx.doi.org/10.1117/12.2028360


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