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Event-based cameras display great potential for a variety of tasks such as high-speed motion detection and navigation in low-light environments where conventional frame-based cameras suffer critically. This is attributed to their high…

Neural and Evolutionary Computing · Computer Science 2020-09-16 Chankyu Lee , Adarsh Kumar Kosta , Alex Zihao Zhu , Kenneth Chaney , Kostas Daniilidis , Kaushik Roy

Finding the convex hull is a fundamental problem in computational geometry. Quickhull is a fast algorithm for finding convex hulls. In this paper, we present VQhull, a fast parallel implementation of Quickhull that exploits vector…

Computational Geometry · Computer Science 2025-10-13 Thomas Koopman , Jordy Aaldering , Bernard van Gastel , Sven-Bodo Scholz

We tackle the problem of estimating optical flow from a monocular camera in the context of autonomous driving. We build on the observation that the scene is typically composed of a static background, as well as a relatively small number of…

Computer Vision and Pattern Recognition · Computer Science 2016-08-24 Min Bai , Wenjie Luo , Kaustav Kundu , Raquel Urtasun

Region proposal is critical for object detection while it usually poses a bottleneck in improving the computation efficiency on traditional control-flow architectures. We have observed region proposal tasks are potentially suitable for…

Distributed, Parallel, and Cluster Computing · Computer Science 2018-10-30 Wenzhi Fu , Jianlei Yang , Pengcheng Dai , Yiran Chen , Weisheng Zhao

In order to improve usability and safety, modern unmanned aerial vehicles (UAVs) are equipped with sensors to monitor the environment, such as laser-scanners and cameras. One important aspect in this monitoring process is to detect…

Computer Vision and Pattern Recognition · Computer Science 2019-09-24 Boitumelo Ruf , Sebastian Monka , Matthias Kollmann , Michael Grinberg

Guaranteeing real-time and accurate object detection simultaneously is paramount in autonomous driving environments. However, the existing object detection neural network systems are characterized by a tradeoff between computation time and…

Computer Vision and Pattern Recognition · Computer Science 2022-09-30 Won Joon Yun , Soohyun Park , Joongheon Kim , David Mohaisen

The use of Model Predictive Control in industry is steadily increasing as more complicated problems can be addressed. Due to that online optimization is usually performed, the main bottleneck with Model Predictive Control is the relatively…

Optimization and Control · Mathematics 2014-01-31 Isak Nielsen , Daniel Axehill

Purpose: Optoacoustic tomography (OAT) is inherently a three-dimensional (3D) inverse problem. However, most studies of OAT image reconstruction still employ two-dimensional (2D) imaging models. One important reason is because 3D image…

Medical Physics · Physics 2013-04-09 Kun Wang , Chao Huang , Yu-Jiun Kao , Cheng-Ying Chou , Alexander A. Oraevsky , Mark A. Anastasio

The approximate minimum degree algorithm is widely used before numerical factorization to reduce fill-in for sparse matrices. While considerable attention has been given to the numerical factorization process, less focus has been placed on…

Distributed, Parallel, and Cluster Computing · Computer Science 2026-02-26 Yen-Hsiang Chang , Aydın Buluç , James Demmel

Unsupervised optical flow methods typically lack reliable uncertainty estimation, limiting their robustness and interpretability. We propose U$^{2}$Flow, the first recurrent unsupervised framework that jointly estimates optical flow and…

Computer Vision and Pattern Recognition · Computer Science 2026-04-14 Xunpei Sun , Wenwei Lin , Yi Chang , Gang Chen

Navigation of a team of autonomous underwater vehicles (AUVs) coordinated by an unmanned surface vehicle (USV) is efficient and reliable for deep ocean exploration. AUVs depart from and return to the USV after collaborative navigation, data…

Systems and Control · Electrical Eng. & Systems 2025-05-13 Mohsen Eskandari , Andrey V. Savkin , Mohammad Deghat

Minimum cut/maximum flow (min-cut/max-flow) algorithms solve a variety of problems in computer vision and thus significant effort has been put into developing fast min-cut/max-flow algorithms. As a result, it is difficult to choose an ideal…

Computer Vision and Pattern Recognition · Computer Science 2022-04-21 Patrick M. Jensen , Niels Jeppesen , Anders B. Dahl , Vedrana A. Dahl

The Multi-Objective Shortest-Path (MOS) problem finds a set of Pareto-optimal solutions from a start node to a destination node in a multi-attribute graph. The literature explores multi-objective A*-style algorithmic approaches to solving…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-04-16 Leo Gold , Adam Bienkowski , David Sidoti , Krishna Pattipati , Omer Khan

State-of-the-art scene flow algorithms pursue the conflicting targets of accuracy, run time, and robustness. With the successful concept of pixel-wise matching and sparse-to-dense interpolation, we push the limits of scene flow estimation.…

Computer Vision and Pattern Recognition · Computer Science 2019-10-30 René Schuster , Oliver Wasenmüller , Christian Unger , Georg Kuschk , Didier Stricker

We consider a variational method to solve the optical flow problem with varying illumination. We apply an adaptive control of the regularization parameter which allows us to preserve the edges and fine features of the computed flow. To…

Computer Vision and Pattern Recognition · Computer Science 2015-08-13 Diane Gilliocq-Hirtz , Zakaria Belhachmi

Unmanned Aerial Vehicles (UAVs) have been emerging as an effective solution for IoT data collection networks thanks to their outstanding flexibility, mobility, and low operation costs. However, due to the limited energy and uncertainty from…

Networking and Internet Architecture · Computer Science 2021-06-22 Nam H. Chu , Dinh Thai Hoang , Diep N. Nguyen , Nguyen Van Huynh , Eryk Dutkiewicz

Recent advances in optical flow estimation have prioritized accuracy at the cost of growing GPU memory consumption, particularly for high-resolution (FullHD) inputs. We introduce MEMFOF, a memory-efficient multi-frame optical flow method…

Computer Vision and Pattern Recognition · Computer Science 2025-07-01 Vladislav Bargatin , Egor Chistov , Alexander Yakovenko , Dmitriy Vatolin

We present a new approach to the minimum-cost integral flow problem for small values of the flow. It reduces the problem to the tests of simple multi-variate polynomials over a finite field of characteristic two for non-identity with zero.…

Distributed, Parallel, and Cluster Computing · Computer Science 2012-10-02 Andrzej Lingas , Mia Persson

Optical flow estimation can be formulated as an end-to-end supervised learning problem, which yields estimates with a superior accuracy-runtime tradeoff compared to alternative methodology. In this paper, we make such networks estimate…

Computer Vision and Pattern Recognition · Computer Science 2018-12-21 Eddy Ilg , Özgün Çiçek , Silvio Galesso , Aaron Klein , Osama Makansi , Frank Hutter , Thomas Brox

Autonomous driving in high-speed racing, as opposed to urban environments, presents significant challenges in scene understanding due to rapid changes in the track environment. Traditional sequential network approaches may struggle to meet…

Computer Vision and Pattern Recognition · Computer Science 2025-05-06 Suwesh Prasad Sah