示证屏中红外多重触控快速标定算法  

A Rapid Infrared Calibration Method for Multi-touch Evidence Display System

作　　者：李铁柱 朱文华 蔡宝 LI Tiezhu;ZHU Wenhua;CAI Bao(Engineering Training Center,Shanghai Polytechnic University,Shanghai 201209)

机构地区：[1]上海第二工业大学工程训练中心,上海201209

出　　处：《计算机与数字工程》2019年第5期1244-1248,共5页Computer & Digital Engineering

摘　　要：论文以受抑全内反射(FTIR)技术为核心,针对互动示证屏系统的技术特点,设计并实现了激光多重触控快速标定算法。分析实际应用场景中,不同光线、距离而产生的不同掩膜(MASK)的标定算法和估算方法,系统采用C/C++实现,NURBS曲面拟合,应用结果表明,论文设计的算法具有较好的实时性、运行效果稳定,用户体验效果良好,达到了系统设计要求。In this paper,with Frustrated Total Internal Reflection technology as the core and according to the technical charac. teristics of interactive display system,a fast calibration algorithm for laser multi-touch control is designed and implemented. The calibration algorithms and estimation methods of different masks produced by different light and distance in practical application sce. narios are analyzed. The system is implemented by C/C++ and NURBS surface fitting. The application results show that the algo. rithm designed in this paper has good real-time performance,stable operation effect,good user experience effect,and meets the system design requirements.

关 键 词：FRIT 掩膜 标定 曲面拟合 

分 类 号：TN216[电子电信—物理电子学]