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The autonomous exploration of environments by multi-robot systems is a critical task with broad applications in rescue missions, exploration endeavors, and beyond. Current approaches often rely on either greedy frontier selection or…

Robotics · Computer Science 2024-10-28 Gengyuan Cai , Luosong Guo , Xiangmao Chang

We propose a method for off-road drivable area extraction using 3D LiDAR data with the goal of autonomous driving application. A specific deep learning framework is designed to deal with the ambiguous area, which is one of the main…

Computer Vision and Pattern Recognition · Computer Science 2020-03-11 Biao Gao , Anran Xu , Yancheng Pan , Xijun Zhao , Wen Yao , Huijing Zhao

A new variational formulation is herein proposed for the solution of adhesive contact problems for non-planar profiles of arbitrary shape indenting a deformable half-plane. The method exploits the original idea of accounting for the shape…

Soft Condensed Matter · Physics 2018-05-21 Marco Paggi , José Reinoso

Autonomous driving must operate across diverse surfaces to enable safe mobility. However, most driving datasets are captured on well-paved flat roads. Moreover, recent driving datasets primarily provide sparse LiDAR ground truth for images,…

Computer Vision and Pattern Recognition · Computer Science 2026-05-08 Gasser Elazab , Frank Neuhaus , Tilman Koß , Malte Splietker , Aditya Date , Michael Unterreiner , Maximilian Jansen , Olaf Hellwich

Road detection or traversability analysis has been a key technique for a mobile robot to traverse complex off-road scenes. The problem has been mainly formulated in early works as a binary classification one, e.g. associating pixels with…

Computer Vision and Pattern Recognition · Computer Science 2021-03-08 Biao Gao , Shaochi Hu , Xijun Zhao , Huijing Zhao

In this work, we present a novel automated procedure for constructing a metric map of an unknown domain with obstacles using uncertain position data collected by a swarm of resource-constrained robots. The robots obtain this data during…

Robotics · Computer Science 2019-03-14 Ragesh K. Ramachandran , Spring Berman

Semantic segmentation is important for many real-world systems, e.g., autonomous vehicles, which predict the class of each pixel. Recently, deep networks achieved significant progress w.r.t. the mean Intersection-over Union (mIoU) with the…

Computer Vision and Pattern Recognition · Computer Science 2020-08-12 Xiaofeng Liu , Yimeng Zhang , Xiongchang Liu , Song Bai , Site Li , Jane You

We investigate the effects of roughness and fractality on the normal contact stiffness of rough surfaces. Samples of isotropically roughened aluminium surfaces are considered. The roughness and fractal dimension were altered through…

We performed a set of numerical simulations to characterize the interplay of fracture network topology, upscaling, and mesh refinement on flow and transport properties in fractured porous media. We generated a set of generic…

Computational Engineering, Finance, and Science · Computer Science 2023-02-23 Aleksandra A. Pachalieva , Matthew R. Sweeney , Hari Viswanathan , Emily Stein , Rosie Leone , Jeffrey D. Hyman

The main approaches for simulating FMCW radar are based on ray tracing, which is usually computationally intensive and do not account for background noise. This work proposes a faster method for FMCW radar simulation capable of generating…

Computer Vision and Pattern Recognition · Computer Science 2023-08-09 Eduardo C. Fidelis , Fabio Reway , Herick Y. S. Ribeiro , Pietro L. Campos , Werner Huber , Christian Icking , Lester A. Faria , Torsten Schön

The process of automatic generation of a road map from GPS trajectories, called map inference, remains a challenging task to perform on a geospatial data from a variety of domains as the majority of existing studies focus on road maps in…

Computer Vision and Pattern Recognition · Computer Science 2019-09-25 Arian Prabowo , Piotr Koniusz , Wei Shao , Flora D. Salim

Mean-field coupled lattice maps are used to approximate the physics of driven threshold systems with long range interactions. However, they are incapable of modeling specific features of the dynamic instability responsible for generating…

Adaptation and Self-Organizing Systems · Physics 2009-11-10 Eric F. Preston , Jorge S. Sa Martins , John Rundle

Road traffic accidents are a leading cause of fatalities worldwide. In the US, human error causes 94% of crashes, resulting in excess of 7,000 pedestrian fatalities and $500 billion in costs annually. Autonomous Vehicles (AVs) with…

This paper presents a process for estimating the spatially varying surface reflectance of complex scenes observed under natural illumination. In contrast to previous methods, our process is not limited to scenes viewed under controlled…

Computer Vision and Pattern Recognition · Computer Science 2022-03-01 Alen Joy , Charalambos Poullis

In work the opportunity of construction fractal estimation of low-frequency component microaccelerations with the help of the valid part to Weierstrass-Mandelbrot function at identically zero phase is statistically proved. The proof will be…

General Physics · Physics 2010-03-30 A. V. Sedelnikov , D. P. Podlesnova

The rise of self-driving cars (SDCs) presents important safety challenges to address in dynamic environments. While field testing is essential, current methods lack diversity in assessing critical SDC scenarios. Prior research introduced…

Software Engineering · Computer Science 2024-01-29 Timo Blattner , Christian Birchler , Timo Kehrer , Sebastiano Panichella

Most autonomous navigation systems assume wheeled robots are rigid bodies and their 2D planar workspaces can be divided into free spaces and obstacles. However, recent wheeled mobility research, showing that wheeled platforms have the…

Robotics · Computer Science 2023-09-26 Aniket Datar , Chenhui Pan , Xuesu Xiao

Creating plausible surfaces is an essential component in achieving a high degree of realism in rendering. To relieve artists, who create these surfaces in a time-consuming, manual process, automated retrieval of the spatially-varying…

Graphics · Computer Science 2019-10-14 Mark Boss , Hendrik P. A. Lensch

Terrains are the main part of an electronic game. To reduce human effort on game development, procedural techniques are used to generate synthetic terrains. However rendering a terrain is not a trivial task. Their rendering techniques must…

Graphics · Computer Science 2018-03-14 Ricardo B. D. d'Oliveira , Antonio L. Apolinário

Mobile 3D printing on unstructured terrain remains challenging due to the conflict between platform mobility and deposition precision. Existing gantry-based systems achieve high accuracy but lack mobility, while mobile platforms struggle to…

Robotics · Computer Science 2026-01-16 Shuangshan Nors Li , J. Nathan Kutz