Journal
ROBOTICS RESEARCH: THE 19TH INTERNATIONAL SYMPOSIUM ISRR
Volume 20, Issue -, Pages 575-592Publisher
SPRINGER INTERNATIONAL PUBLISHING AG
DOI: 10.1007/978-3-030-95459-8_35
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- Federal Ministry of Education and Research of Germany [FOUNT2]
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This paper introduces a life-saving technology using unmanned aerial vehicles equipped with bioradars to identify survivors after natural disasters. The technology requires UAVs to autonomously navigate and land on debris piles. The paper proposes a new landing site detection algorithm and conducts experiments using a synthetic dataset and a simulation environment.
Unmanned Aerial Vehicles (UAVs) equipped with bioradars are a life-saving technology that can enable identification of survivors under collapsed buildings in the aftermath of natural disasters such as earthquakes or gas explosions. However, these UAVs have to be able to autonomously navigate in disaster struck environments and land on debris piles in order to accurately locate the survivors. This problem is extremely challenging as pre-existing maps cannot be leveraged for navigation due to structural changes that may have occurred. Furthermore, existing landing site detection algorithms are not suitable to identify safe landing regions on debris piles. In this work, we present a computationally efficient system for autonomous UAV navigation and landing that does not require any prior knowledge about the environment. We propose a novel landing site detection algorithm that computes costmaps based on several hazard factors including terrain flatness, steepness, depth accuracy, and energy consumption information. We also introduce a first-of-a-kind synthetic dataset of over 1.2 million images of collapsed buildings with groundtruth depth, surface normals, semantics and camera pose information. We demonstrate the efficacy of our system using experiments from a city scale hyperrealistic simulation environment and in real-world scenarios with collapsed buildings.
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