Vision-Based End-to-End Learning for UAV Traversal of Irregular Gaps via Differentiable Simulation

Fuente: arXiv
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Main Authors: Zhang, Linzuo, Hu, Yu, Yu, Feng, Deng, Yang, Yu, Wenxian, Zou, Danping
Format: Preprint
Published: 2026
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_version_ 1866908943795617792
author Zhang, Linzuo
Hu, Yu
Yu, Feng
Deng, Yang
Yu, Wenxian
Zou, Danping
author_facet Zhang, Linzuo
Hu, Yu
Yu, Feng
Deng, Yang
Yu, Wenxian
Zou, Danping
contents -Navigation through narrow and irregular gaps is an essential skill in autonomous drones for applications such as inspection, search-and-rescue, and disaster response. However, traditional planning and control methods rely on explicit gap extraction and measurement, while recent end-to-end approaches often assume regularly shaped gaps, leading to poor generalization and limited practicality. In this work, we present a fully vision-based, end-to-end framework that maps depth images directly to control commands, enabling drones to traverse complex gaps within unseen environments. Operating in the Special Euclidean group SE(3), where position and orientation are tightly coupled, the framework leverages differentiable simulation, a Stop-Gradient operator, and a Bimodal Initialization Distribution to achieve stable traversal through consecutive gaps. Two auxiliary prediction modules-a gap-crossing success classifier and a traversability predictor-further enhance continuous navigation and safety. Extensive simulation and real-world experiments demonstrate the approach's effectiveness, generalization capability, and practical robustness.
format Preprint
id arxiv_https___arxiv_org_abs_2604_02779
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Vision-Based End-to-End Learning for UAV Traversal of Irregular Gaps via Differentiable Simulation
Zhang, Linzuo
Hu, Yu
Yu, Feng
Deng, Yang
Yu, Wenxian
Zou, Danping
Robotics
-Navigation through narrow and irregular gaps is an essential skill in autonomous drones for applications such as inspection, search-and-rescue, and disaster response. However, traditional planning and control methods rely on explicit gap extraction and measurement, while recent end-to-end approaches often assume regularly shaped gaps, leading to poor generalization and limited practicality. In this work, we present a fully vision-based, end-to-end framework that maps depth images directly to control commands, enabling drones to traverse complex gaps within unseen environments. Operating in the Special Euclidean group SE(3), where position and orientation are tightly coupled, the framework leverages differentiable simulation, a Stop-Gradient operator, and a Bimodal Initialization Distribution to achieve stable traversal through consecutive gaps. Two auxiliary prediction modules-a gap-crossing success classifier and a traversability predictor-further enhance continuous navigation and safety. Extensive simulation and real-world experiments demonstrate the approach's effectiveness, generalization capability, and practical robustness.
title Vision-Based End-to-End Learning for UAV Traversal of Irregular Gaps via Differentiable Simulation
topic Robotics
url https://arxiv.org/abs/2604.02779