Reference Sphere Positioning Measurement Based on Line-Structured Light Vision Sensor
Reference Sphere Positioning Measurement Based on Line-Structured Light Vision Sensor
复制标题
基于线结构光视觉传感器的参考球定位测量
DOI：
10.1155/2013/587904
复制
发表时间：
2013
影响因子：
2.1
通讯作者：
Zhang Yuan
中科院分区：
文献类型：
--
作者：
Wu Bin;Zhang Yuan
The line-structured light vision sensor has been used widely in industrial vision measuring fields due to its simple structure, small volume, light weight, low cost, convenient calibration, and high accuracy of measurement. To locate the reference sphere precisely with line-structured light vision sensor, a mathematical model based on the measuring principle of line-structured light vision sensor is established in the paper. Then, the positioning measurement error is analyzed in detail. The experimental results show that the method is valid and correct. In addition, an accurate measurement area which is fromR0× sin 45° toR0× sin 75° away from the center of reference sphere is delimited through the statistical analysis of the experimental data. For the robot temperature compensation and calibration of flexible vision measurement system, this method effectively solves the positioning measurement problems about reference sphere with line-structured light vision sensor and has been applied in the industrial flexible online measurement systems successfully.
