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Published March 17, 2021 | Version v1
Journal article Open

Auto-Tuned Event-Based Perception Scheme for Intrusion Monitoring With UAS

  • 1. GRVC Robotics Lab, University of Seville

Description

This paper presents an asynchronous event-based scheme for automatic intrusion monitoring using Unmanned Aerial Systems (UAS). Event cameras are neuromorphic sensors that capture the illumination changes in the camera pixels with high temporal resolution and dynamic range. In contrast to conventional frame-based cameras, they are naturally robust against motion blur and lighting conditions, which make them ideal for outdoor aerial robot applications. The presented scheme includes two main perception components. First, an asynchronous event-based processing system efficiently detects intrusions by combining several asynchronous event-based algorithms that exploit the advantages of the sequential nature of the event stream. The second is an off-line training mechanism that adjusts the parameters of the event-based algorithms to a particular surveillance scenario and mission. The proposed perception system was implemented in ROS for on-line execution on board UAS, integrated in an autonomous aerial robot architecture, and extensively validated in challenging scenarios with a wide variety of lighting conditions, including day and night experiments in pitch dark conditions.

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Additional details

Funding

GRIFFIN – General compliant aerial Robotic manipulation system Integrating Fixed and Flapping wings to INcrease range and safety 788247
European Commission
AERIAL-CORE – AERIAL COgnitive integrated multi-task Robotic system with Extended operation range and safety 871479
European Commission