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|Title:||Planes, trains and automobiles - autonomy for the modern robot|
|Citation:||IEEE International Conference on Robotics and Automation, 2010, pp.285-292|
|Series/Report no.:||IEEE International Conference on Robotics and Automation ICRA|
|Conference Name:||IEEE International Conference on Robotics and Automation (ICRA) (3 May 2010 - 7 May 2010 : Anchorage, AK)|
|Gabe Sibley, Christopher Mei, Ian Reid and Paul Newman|
|Abstract:||We are concerned with enabling truly large scale autonomous navigation in typical human environments. To this end we describe the acquisition and modeling of large urban spaces from data that reflects human sensory input. Over 181GB of image and inertial data are captured using head-mounted stereo cameras. This data is processed into a relative map covering 121 km of Southern England. We point out the numerous challenges we encounter, and highlight in particular the problem of undetected ego-motion, which occurs when the robot finds itself on-or-within a moving frame of reference. In contrast to global-frame representations, we find that the continuous relative representation naturally accommodates moving-reference-frames - without having to identify them first, and without inconsistency. Within a moving-reference-frame, and without drift-less global exteroceptive sensing, motion with respect to the global-frame is effectively unobservable. This underlying truth drives us towards relative topometric solutions like relative bundle adjustment (RBA), which has no problem representing distance and metric Euclidean structure, yet does not suffer inconsistency introduced by the attempt to solve in the global-frame.|
|Appears in Collections:||Aurora harvest 7|
Computer Science publications
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