ROMar 10, 2021

Autonomous Flights in Dynamic Environments with Onboard Vision

arXiv:2103.05870v163 citations
Originality Incremental advance
AI Analysis

This work addresses autonomous navigation for drones in cluttered, moving environments, representing an incremental improvement over existing methods.

The paper presents a complete system for autonomous quadrotor flight in dynamic environments using onboard vision, achieving effective collision avoidance in real-world experiments.

In this paper, we introduce a complete system for autonomous flight of quadrotors in dynamic environments with onboard sensing. Extended from existing work, we develop an occlusion-aware dynamic perception method based on depth images, which classifies obstacles as dynamic and static. For representing generic dynamic environment, we model dynamic objects with moving ellipsoids and fuse static ones into an occupancy grid map. To achieve dynamic avoidance, we design a planning method composed of modified kinodynamic path searching and gradient-based optimization. The method leverages manually constructed gradients without maintaining a signed distance field (SDF), making the planning procedure finished in milliseconds. We integrate the above methods into a customized quadrotor system and thoroughly test it in realworld experiments, verifying its effective collision avoidance in dynamic environments.

Foundations

The foundational work for this paper's niche, ranked by how specifically the neighbourhood builds on it — not by global fame.

Your Notes