面向虚拟装配的虚拟手交互技术研究_绪玉花.pdfVIP

机械设计与制造 第5 期 262 Machinery Design ＆ Manufacture 2014 年5 月 面向虚拟装配的虚拟手交互技术研究 绪玉花，李静蓉 华南理工大学机械与汽车工程学院，广东广州 510640） （ 摘 要：人机交互技术是虚拟装配过程的关键技术。通过数据手套实时、自然地与虚拟环境交互，完成虚拟装配等操作， 为虚拟装配提供更为直观的验证和优化。结合机械产品的结构特征与装配操作需求，研究了面向机械产品虚拟装配的手 势识别交互技术。针对四大类型通用机械零件分别进行了抓取手势的定义与识别，提出了机械零件虚拟装配中虚拟手势 的识别及稳定抓取算法。应用减速器虚拟装配进行实例验证。表明，提出的手势识别和抓取算法是有效的，可以使虚拟装 配过程的交互性以及沉浸感进一步加强，有助于减少虚拟装配操作的失误。 关键词：人机交互；手势识别；数据手套；虚拟装配 中图分类号：TH16 ；TP319.9 文献标识码：A 文章编号：1001-3997 （2014）05-0262-05 Research and Implementation of Virtual Hand Interaction in Virtual Mechanical Assembly XU Yu-hua，LI Jing-rong （School of Mechanical and Automotive Engineering ，South China University of Technology，Guangdong Guangzhou 510640， China） Abstract ：Human-computer interaction is a key technology during the virtual assembly （VA）process. By using data gloves to accomplish operations in VA can provide more intuitive validation and optimization for assembly. According to the structural characteristics and the actual assembly practice of machine elements ，gesture recognition for mechanical products during VA is studied. Definitions of grasping gestures for four general types of mechanical elements are proposed respectively ，with which the gesture recognition and steady grasping algorithm are developed. The case study of virtual assembly for a reducer demonstrates that the proposed gesture recognition and grasping algorithm is effective. Furthermore ，the interactivity and immersion experiences are greatly enhanced，which can reduce operational errors in the virtual assembly process. Key Words：Human-Computer In