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| 基于OBB算法和前向预防的快速碰撞检测 | |
| 引用本文： | 王培俊,王文静,陈鹏,何丽亚. 基于OBB算法和前向预防的快速碰撞检测[J]. 西南交通大学学报, 2011, 46(6): 1003-1007 |
| 作者姓名： | 王培俊 王文静 陈鹏 何丽亚 |
| 作者单位： | 1. 西南交通大学机械工程学院,四川成都,610031 2. 哈尔滨工业大学机电工程学院,黑龙江哈尔滨,150001 3. 四川民族学院教育系,四川康定,626001 |
| 基金项目： | 教育部回国人员资助项目(2009S03007) |
| 摘 要： | 为提高虚拟装配系统碰撞检测的实时性和真实感,提出了一种基于前向预防的虚拟装配中的防穿透方法,应用方向包围盒(OBB)算法和分层检测机制进行快速碰撞检测,较精确地实现了虚拟装配中虚拟手的抓取释放和防止穿透,克服了虚拟抓取操作中的失真问题.借助数据手套和六自由度跟踪仪,在半沉浸式虚拟装配系统中,针对场景规模较大的电机壳体模具,应用快速碰撞检测算法进行了装配仿真.结果表明,该虚拟装配系统的碰撞响应时间达到毫秒级,没有穿透现象产生,具有较理想的操作真实感. |
| 关 键 词： | 碰撞检测 方向包围盒(OBB)算法 穿透预防 失真 虚拟装配 虚拟手 |
Rapid Collision Detection Based on OBB Algorithm and Penetration Avoidance Mechanism |
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| WANG Peiiun , WANG Wenjing , CHEN Peng , HE Liya. Rapid Collision Detection Based on OBB Algorithm and Penetration Avoidance Mechanism[J]. Journal of Southwest Jiaotong University, 2011, 46(6): 1003-1007 | |
| Authors: | WANG Peiiun WANG Wenjing CHEN Peng HE Liya |
| Affiliation: | WANG Peijun 1,WANG Wenjing 1,CHEN Peng 2,HE Liya 3(1.School of Mechanical Engineering,Southwest Jiaotong University,Chengdu 610031,China,2.School of Mechatronics Engineering,Harbin Institute of Technology,Harbin 150001,3.Department of Education,Sichuan University for Nationalities,Kangding 626001,China) |
| Abstract: | A new penetration avoidance mechanism based on forward prevention was proposed to improve the real time performance and reality of collision detection in virtual assembly systems.In virtual assembly manipulation,grasp and release of virtual objects and penetration avoidance were implemented using an OBB algorithm and a hierarchical detection method to avoid artifact caused by a traditional penetration avoidance algorithm.The proposed algorithm,with the help of a data glove and a tracker with 6 DOF,was appli... |
| Keywords: | collision detection OBB algorithm penetration avoidance artifact virtual assembly virtual hand |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |