A three-step system calibration procedure with error compensation for 3D shape measurement

• 来源期刊: 中国光学快报(英文版)
• 学科: 工学
• 关键词: 三维形状测量 测量系统 校准程序 误差补偿 Marquardt 预测精度 测量环境 测量误差
• 年，卷（期）: 2010,（1）
• 所属期刊栏目: Instrumentation, Measurement, and Metrology
• 页码范围: 33-37
• 页数: 5页
• 分类号: TP333.35 TH741
• 语种: 英文

摘要

System calibration,which usually involves complicated and time-consuming procedures,is crucial for any three-dimensional(3D) shape measurement system based on vision.A novel improved method is proposed for accurate calibration of such a measurement system.The system accuracy is improved with considering the nonlinear measurement error created by the difference between the system model and real measurement environment.We use Levenberg-Marquardt optimization algorithm to compensate the error and get a good...