Balanced Hierarchical Method of Collision Detection in Virtual Environment

2011 ◽  
pp. 493-501 ◽  
Author(s):  
Hamzah Asyrani Sulaiman ◽  
Abdullah Bade
Keyword(s):  
Virtual Environment ◽  
Collision Detection ◽  
Hierarchical Method

Enabling Technologies for Virtual Parts Handling Environment: An Overview

1996 ◽  
Author(s):  
F. W. Liou
Keyword(s):  
Virtual Environment ◽  
Collision Detection ◽  
Future Trend ◽  
Special Focus ◽  
Friction Modeling ◽  
Contact Modeling ◽  
The Core ◽  
Enabling Technologies ◽  
Physically Based ◽  
Parts Feeding

Abstract Due to the current advances in simulation, computer graphics, robotics, and other related technologies, virtual environment has become a future trend in design and development of new products. This paper summarizes the current enabling technologies to develop a virtual environment for parts handling applications, such as parts feeding, assembling, and robotic grasping. A special focus is on developing a physically-based simulation system, which is the core of a virtual parts handling environment. Critical technologies such as object collision detection and response, contact modeling and friction modeling are reviewed. The technological challenges in these areas are also pointed out.

scholarly journals The framework of collision detection for deformable bodies in virtual environment

2019 ◽  
Vol 1358 ◽  
pp. 012082
Author(s):  
R Yazid ◽  
H A Sulaiman ◽  
A N Che Pee ◽  
A Bade ◽  
N S Sukormo ◽  
...  
Keyword(s):  
Virtual Environment ◽  
Collision Detection ◽  
Deformable Bodies

A Comparison of Two Collision Detection Libraries in a Haptic Simulation Environment

2004 ◽  
Author(s):  
Adam S. Coutee ◽  
Bert Bras
Keyword(s):  
Virtual Environment ◽  
Collision Detection ◽  
High Speed ◽  
Limiting Factors ◽  
Simulation Environment ◽  
Assembly Sequences ◽  
High Speed Collision ◽  
Dynamic Objects ◽  
Haptic Simulation

Modeling the interaction between dynamic objects in a haptically enabled virtual environment requires high-speed collision detection. We present an independent comparison of two publicly available collision detection libraries, V-Clip and SWIFT++, as they perform in our assembly and disassembly simulation. Three assembly sequences, differing only by the complexity of the objects involved, are tested and compared based on speed of execution. In the process, some potentially limiting factors experienced while using these libraries are exposed.

Collision Detection Based on SIMD Model

2014 ◽  
Vol 519-520 ◽  
pp. 833-837
Author(s):  
Hui Yan Qu ◽  
Wei Zhao
Keyword(s):  
Real Time ◽  
Virtual Environment ◽  
Collision Detection ◽  
Time Complexity ◽  
Reconstruction Algorithm ◽  
Detection Algorithm ◽  
Data Selection ◽  
Iterative Sequence ◽  
The Public ◽  
Virtual Objects

In order to solve the virtual objects intersect problem in virtual environment, real-time fast CD application must be used in virtual environment. Collision detection algorithm based on a SIMD parallel was proposed. For ordered lists we used methods for N processors to search ordered sequence simultaneously, to select a valid range through an iterative, to retain the public segment as an iterative sequence so that to complete the division of the interval and data selection. It can improve the reconstruction of the bounding box of the data selected when these two algorithms applied to the detection of the CD. Experimental results show that compared with the classical reconstruction algorithm, the proposed algorithm has better time complexity and improve the efficiency of the CD.

A Platform Establishment Method for Auto Driving Simulation Based on EON Studio

2008 ◽  
Vol 392-394 ◽  
pp. 1047-1054
Author(s):  
Kai Xue ◽  
F. Yang
Keyword(s):  
Virtual Reality ◽  
Virtual Environment ◽  
Collision Detection ◽  
Driving Simulation ◽  
Vehicle Body ◽  
Vehicle Design ◽  
Direct Influence ◽  
Establishment Method ◽  
Simulation Based ◽  
Interactive Operations

The factors of outline appearance, colors and interior decorations in vehicle design have direct influence on consumers. How to express these factors rapidly and vividly by using virtual reality (VR) technology has been researched in the paper. Firstly, the design scheme has been presented out of virtual driving platform. Secondly, the vehicle models and its exterior scenes have been built. In addition, the virtual driving platform has been established based on EON Studio, the Cg advanced rendering and the collision detection are developed of vehicle body and exterior scenes. Finally, the human-machine interactive operations have been realized, which provides virtual environment for designers and customers to observe and experience freely in the virtual driving platform.

A Sophisticated Manipulation Aid in a Virtual Environment using Dynamic Constraints among Object Faces

1998 ◽  
Vol 7 (5) ◽  
pp. 460-477 ◽  
Author(s):  
Yoshifumi Kitamura ◽  
Amy Yee ◽  
Fumio Kishino
Keyword(s):  
Real Time ◽  
Virtual Environment ◽  
Collision Detection ◽  
Completion Time ◽  
Detection Method ◽  
Virtual Object ◽  
Efficient Tool ◽  
Dynamic Constraints ◽  
Visual Constraints ◽  
Intuitive Method

A natural and intuitive method is proposed to help a user manipulate an object in a virtual environment. The method does not need to assign special properties to the object faces in advance and does not require special hardware. Instead, it uses only the visual constraints of motion among object faces that are dynamically selected by a real-time collision detection method while the user manipulates the object. By constraining more than two faces during the user's manipulation, the proposed method provides an efficient tool for complicated manipulation tasks. First, the method of manipulation aid is described. Then several experiments demonstrate the effectiveness of this method, particularly when the user is requested to precisely place a virtual object in a certain location. Finally, as an application of the proposed manipulation aid, an experiment is conducted to compare the performances of a task (constructing a simple toy) in a real versus a virtual environment. Results show that the distance accuracy and completion time of the virtual task with the manipulation aid is close to that of the real task.

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