Results 251 to 260 of about 142,166 (292)

Dynamic Obstacle Avoidance of Mobile Robot Based on Adaptive Velocity Obstacle

2021 36th Youth Academic Annual Conference of Chinese Association of Automation (YAC), 2021
The Velocity Obstacle (VO) provides a good solution for mobile robot collision avoidance problem. VO divides the velocity region into collision zone and non-collision zone. The robot can avoid collisions by selecting the velocity in the non-collision zone.
Mengyuan Gu, Yunzhi Huang
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Analytic Velocity Obstacle for Efficient Collision Avoidance

Volume 3A: 48th Design Automation Conference (DAC), 2022
Abstract Velocity obstacle is one of popular reactive navigation algorithms for path planning of autonomous agents. The collision-free property can be guaranteed if the agent is able to choose a velocity outside the velocity obstacle region under the assumption that obstacles maintain a constant velocity within the control cycle time of ...
Zhimin Xi, Elnaz Asghari Torkamani
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Improving velocity obstacle approach for obstacle avoidance in indoor environments

2014 UKACC International Conference on Control (CONTROL), 2014
The velocity obstacle approach (VO) is considered an easy and simple method to avoid moving obstacles, where the collision cone principle is used to detect the collision situation between two circular-shaped objects. The VO approach has two challenges when applied in indoor environments. The first challenge is to extract collision cones of non-circular
Ahmad Alsaab, Robert Bicker
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Motion Planning in Dynamic Environments Using Velocity Obstacles

The International Journal of Robotics Research, 1998
This paper presents a method for robot motion planning in dynamic environments. It consists of selecting avoidance maneuvers to avoid static and moving obstacles in the velocity space, based on the cur rent positions and velocities of the robot and obstacles.
FIORINI, Paolo, Shiller Z.
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Safe maritime navigation with COLREGS using Velocity Obstacles

2011 IEEE/RSJ International Conference on Intelligent Robots and Systems, 2011
This paper presents a motion planning algorithm for Unmanned Surface Vehicles (USVs) to navigate safely in dynamic, cluttered environments. The proposed algorithm not only addresses Hazard Avoidance (HA) for stationary and moving hazards but also applies the International Regulations for Preventing Collisions at Sea (known as COLREGS).
Yoshiaki Kuwata, Michael T. Wolf, Dimitri Zarzhitsky, Terrance L. Huntsberger   +3 more
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Development of an optimal velocity selection method with velocity obstacle

Journal of Mechanical Science and Technology, 2015
The Velocity obstacle (VO) method is one of the most well-known methods for local path planning, allowing consideration of dynamic obstacles and unexpected obstacles. Typical VO methods separate a velocity map into a collision area and a collision-free area.
Mingeuk Kim, JunHo Oh
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The relationship between obstacle height and center of pressure velocity during obstacle crossing

Gait & Posture, 2008
This study was performed to investigate the effect of obstacle height on the COP velocity when negotiating obstacles. Seven healthy female subjects were instructed to perform unobstructed level walking and to step over obstacles corresponding to 5%, 10%, and 15% of their height. The Parotec system was used to collect plantar foot pressure data.
Yun, Wang, Kazuhiko, Watanabe
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Vehicle Safety of the Velocity Obstacle Algorithm

2020 59th IEEE Conference on Decision and Control (CDC), 2020
This paper presents a mathematical analysis of the velocity obstacle algorithm applied to a nonholonomic vehicle for avoiding a moving obstacle in the plane. The velocity obstacle algorithm can be used for local navigation among dynamic obstacles by continually computing a set of unsafe velocities, and avoid the velocities inside of this set.
Aurora Haraldsen, Martin S. Wiig, Kristin Y. Pettersen   +2 more
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Velocity obstacle–based conflict resolution and recovery method

The Aeronautical Journal, 2021
ABSTRACTConsidering the shortcomings of current methods for real-time resolution of two-aircraft flight conflicts, a geometric optimal conflict resolution and recovery method based on the velocity obstacle method for two aircraft and a cooperative conflict resolution method for multiple aircraft are proposed.
F. Sun, Y. Chen, X. Xu, Y. Mu, Z. Wang
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A survey on Velocity Obstacle paradigm

Robotics and Autonomous Systems
Collision avoidance for multi -agent systems in dynamic and possibly crowded environment is a field of research whose popularity has increased during the last three decades. The approaches to solve the problem belong to two categories according to where the computation is done: centralized and decentralized (i.e. at the agent level).
Vesentini, Federico, Muradore, Riccardo, Fiorini, Paolo   +2 more
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