Mapping Matrix of Variable Cross-Section Roll Forming Based on Visual Detection

摘要：

　　An image mapping algorithm is proposed to improve the precision of flexible roll forming.The mapping algorithm based on visual feedback and Image analysis technology.On-line detection device realizes image acquisition of cross-section profile.After processing and analysis,geometric feature is extracted by Hough transform in the image.Geometric feature is transformed to matrix which is built a mapping relation with the original matrix.The mapping algorithm describes the displacement and rotary error in the process of flexible roll forming.Closed loop control is realized by feeding back the error to the control system.Experiments results show that the mapping algorithm is a good algorithm for on-line dimensional precision detection in sheet metal forming.

关键词： machine vision flexible roll forming visual feedback image analysis

作者: Lu Ping Sun Bo Qian Yan Zhi Guan

作者单位: Collage of Mechanical and Electronical Engineering, North China University of Technology, Beijing 100144, China

会议类型: 国际会议

会议名称: 2nd International Conference on Advanced Materials and Engineering Materials(第二届先进材料与工程材料国际会议)(ICAMEM2012)

会议地点: 北京

会议语种:英文

页码: 797-800

在线出版日期: 2012-12-16（万方平台首次上网日期，不代表论文的发表时间）