汇报题目：参加SPIE International Symposium on Optics + Photonics 2019 参会报告

汇报时间：2019年9月2日(星期二) 19:30

汇报地点：科技园西五楼北A304会议室

汇报人：侯东祥

会议名称：SPIE International Symposium on Optics + Photonics 2019

会议时间：11-15 Augus 2019

会议地点：San Diego Convention Center in San Diego, California, USA

会议简介：SPIE Optics + Photonics, the meeting where researchers gather to hear advances in optical engineering and applications, nanotechnology, quantum science, organic photonics, and astronomical instrumentation.

The premier conference for the latest developments in optical design and engineering, including measurement devices and applications, x-ray, gamma-ray, and particle technologies, image and signal processing, astronomical optics and instrumentation, optics and photonics for sustainable energy, remote sensing, and space optical systems.

会议交流工作

Poster presentation: A vision-based edge extraction method used for ultrafast laser auto-modification of the freeform surface component

报告人：侯东祥

参加论文信息

Title: A vision-based edge extraction method used for ultrafast laser auto-modification of the freeform surface component

Dongxiang Hou, Xuesong Mei, Chaoqing Min, Wenjun Wang, Wangwang Huang, Yifei Bi

Abstract: This paper aims to put forward a vision-based edge extraction method for the free-form surface component. The method improves the accuracy of the modification and is used for ultrafast laser auto-modification. Firstly, the reference edge is extracted from the reference point cloud model which is converted from design model. Secondly, we calculate the pose deviation of the measured model and the reference model, and then achieve the matching between edge which extracted from the previous step and the measured model. Finally, the motion of each axis is calculated by established motion model. The experimental result represents the accuracy of proposed method is better than 0.09mm, while the edge points are smoothly and orderly. The kinematics simulation for obtained control code verify the correctness of the 5-axis motion calculation.