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专利名称:
一种线结构光视觉传感器直接标定方法
其他题名: Direct calibration method for line structured light vision sensor
作者: 邹媛媛; 赵明扬; 高英美; 朱思俊; 池世春
所属部门: 装备制造技术研究室
专利权人: 中国科学院沈阳自动化研究所
专利代理: 沈阳科苑专利商标代理有限公司 21002
专利国别: 中国
专利类型: 发明授权
专利状态: 有效
摘要: 本发明涉及一种线结构光视觉传感器直接标定方法,包括以下步骤:建立通过标准量块和利用三维精密平移台形成的靶标;通过线结构光视觉传感器投射结构光光平面至靶标上形成靶标上的特征点;在靶标上建立空间坐标系;采集靶标图像并提取特征点;建立查找索引表包括建立特征点图像坐标同其空间坐标系坐标的直接映射关系;对线结构光视觉传感器进行标定:依据待标定点的图像坐标,在查找索引表中搜索直接得到或者采用最小二乘法拟合算法得到该点的空间坐标系坐标,实现线结构光视觉传感器的直接标定;本发明针对小视场高精度测量应用领域的线结构光视觉传感器,该标定方法简单直接,易于实现,且精度高,能够满足测量需要。
英文摘要: The invention relates to a direct calibration method for a line structured light vision sensor. The method comprises the following steps: establishing a target formed through standard gauge blocks and by utilizing a three-dimensional precision translation bench; projecting structured light plane to the target through the line structured light vision sensor to form feature points on the target; establishing a space coordinate system on the target; collecting target images and extracting the feature points; establishing a search index table including establishing a direct mapping relation between image coordinates of the feature points and space coordinate system coordinates of the feature points; carrying out calibration on the line structured light vision sensor; and based on the image coordinate of a point to be calibrated, searching the space coordinate system coordinate, which is obtained directly or obtained by utilizing a least squares fitting method, of the point in the search index table, so that the direct calibration of the line structured light vision sensor can be realized. The calibration method is used for the line structured light vision sensor which belongs to the small vision field high precision measurement application field. The calibration method is simple and direct, easy to realize, high in precision and can meet the need of measurement.
是否PCT专利:
申请日期: 2012-12-20
公开日期: 2014-06-25
授权日期: 2016-08-17
专利申请号: CN201210559444.X
公布/公告号: CN103884271B
语种: 中文
产权排序: 1
内容类型: 专利
URI标识: http://ir.sia.cn/handle/173321/18929
Appears in Collections:装备制造技术研究室_专利

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Recommended Citation:
邹媛媛,赵明扬,高英美,等. 一种线结构光视觉传感器直接标定方法. CN103884271B. 2014-06-25.
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文件名: CN201210559444.X授权.pdf
格式: Adobe PDF
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