University of Twente Student Theses


VR-based visual model mediated telepresence using a SLAM generated virtual model

Lammers, B. (2020) VR-based visual model mediated telepresence using a SLAM generated virtual model.

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Abstract:Visual awareness has a significant impact on the effectiveness of control for operators in teleoperation tasks. The awareness can degrade when time delays are introduced into the system. In this thesis, a new concept is presented that introduces a visual model-mediated approach that can be used in telemanipulation. A dense visual SLAM generated virtual model is created which is asynchronously updated with new information from a moveable RGB-D sensor. The operator is able to look around freely in the generated virtual reality environment. The performance of the aforementioned concept was evaluated in this thesis. The performance requirements of the system were determined, and shortcomings were identified by using a root cause analysis. Functional tests were performed to improve upon these shortcomings where possible. It is shown that dynamic object tracking is still a severe problem when using a commonly available visual SLAM-based approach (RTABmap). Segmentation of moveable objects is required in future implementations to generate a virtual model that can cope with dynamic environments.
Item Type:Essay (Master)
Faculty:EEMCS: Electrical Engineering, Mathematics and Computer Science
Subject:50 technical science in general
Programme:Electrical Engineering MSc (60353)
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