Deep reinforcement learning-based safe interaction for industrial human-robot collaboration using intrinsic reward function

Q Liu, Z Liu, B Xiong, W Xu, Y Liu - Advanced Engineering Informatics, 2021 - Elsevier
Aiming at human-robot collaboration in manufacturing, the operator's safety is the primary
issue during the manufacturing operations. This paper presents a deep reinforcement …

Efficient collision detection using a dual OBB-sphere bounding volume hierarchy

JW Chang, W Wang, MS Kim - Computer-Aided Design, 2010 - Elsevier
We present an efficient algorithm for collision detection between static rigid objects using a
dual bounding volume hierarchy which consists of an oriented bounding box (OBB) tree …

Dynamic risk assessment and active response strategy for industrial human-robot collaboration

Z Liu, X Wang, Y Cai, W Xu, Q Liu, Z Zhou… - Computers & Industrial …, 2020 - Elsevier
To enhance flexibility and sustainability, human-robot collaboration is becoming a major
feature of next-generation robots. The safety assessment strategy is the first and crucial …

Packing ellipsoids in an optimized cylinder

T Romanova, I Litvinchev, A Pankratov - European Journal of Operational …, 2020 - Elsevier
The paper studies packing ellipsoids of revolution in a cylindrical container of minimum
volume. Ellipsoids can be continuously rotated and translated. Two nonlinear mathematical …

Generalization of the collision cone approach for motion safety in 3-D environments

A Chakravarthy, D Ghose - Autonomous Robots, 2012 - Springer
Avoidance of collision between moving objects in a 3-D environment is fundamental to the
problem of planning safe trajectories in dynamic environments. This problem appears in …

A brief overview of collision detection

R Weller, R Weller - New Geometric Data Structures for Collision Detection …, 2013 - Springer
Collision detection algorithms has been investigated since decades. Consequently, there
already exist a wide spectrum of different approaches. In this chapter, we give a broad …

A mathematical framework for rigid contact detection between quadric and superquadric surfaces

DS Lopes, MT Silva, JA Ambrósio, P Flores - Multibody System Dynamics, 2010 - Springer
The calculation of the minimum distance between surfaces plays an important role in
computational mechanics, namely, in the study of constrained multibody systems where …

Attention-based advantage actor-critic algorithm with prioritized experience replay for complex 2-D robotic motion planning

C Zhou, B Huang, H Hassan, P Fränti - Journal of Intelligent …, 2023 - Springer
Robotic motion planning in dense and dynamic indoor scenarios constantly challenges the
researchers because of the motion unpredictability of obstacles. Recent progress in …

[HTML][HTML] A literature review of bounding volumes hierarchy focused on collision detection

S Dinas, JM Bañón - Ingeniería y competitividad, 2015 - scielo.org.co
A bounding volume is a common method to simplify object representation by using the
composition of geometrical shapes that enclose the object; it encapsulates complex objects …

Colliding ice crystals in turbulent clouds

MZ Sheikh, K Gustavsson, E Lévêque… - Journal of the …, 2022 - journals.ametsoc.org
Collisions, resulting in aggregation of ice crystals in clouds, is an important step in the
formation of snow aggregates. Here, we study the collision process by simulating spheroid …