椭圆
光学
结构光
校准
交叉口(航空)
投影(关系代数)
结构光三维扫描仪
直线(几何图形)
图像传感器
平面的
光场
物理
雷
计算机视觉
平面(几何)
人工智能
计算机科学
数学
几何学
扫描仪
算法
计算机图形学(图像)
工程类
量子力学
天文
航空航天工程
作者
Zhen Liu,Xiaojing Li,Yang Yin
出处
期刊:Optics Express
[Optica Publishing Group]
日期:2015-11-06
卷期号:23 (23): 29896-29896
被引量:35
摘要
A novel calibration method for the line-structured light vision sensor that only requires the image of the light stripe on the target using a movable parallel cylinder target is proposed in this paper. The corresponding equations between two ellipses obtained from the intersection of the light stripe and the target and their projected images are established according to the perspective projection transformation, and the light plane equation is solved based on the constraint conditions that the minor axis of the ellipse is equal to the diameter of the cylinder. In the physical experiment, the field of view of the line-structured light vision sensor is about 500 mm × 400 mm, and the measurement distance is about 700 mm. A calibration accuracy of 0.07 mm is achieved using the proposed method, which is comparable to that when planar targets are used.
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