摘要
在机器视觉测量系统中,光照强度影响着图像的对比度和边缘特征等,从而对最后的轮廓识别精度造成影响。从系统测量的稳定性角度出发,确定合适的光照强度范围,并求出误差补偿曲线。结果表明,在相机的曝光时间为0.05ms时,取光照强度11200Lux,使用系统进行测量时,得出的结果最稳定,伴随其误差补偿曲线为△=-0.0009011*L+0.4995.
In the machine vision measurement system, the illumination intensity affects the image contrast and the edge feature, and so on. According to the stability of the system measurement, the suitable light intensity range is determined, and the error compensation curve is obtained. The results show that when the exposure time of the camera is 0.05ms, when the light intensity is 11200Lux, and the system is used to measure, the result is most stable △=-0.0009011＊L＋0.4995.
出处
《装备制造技术》
2016年第10期195-197,共3页
Equipment Manufacturing Technology
基金
2015年国家级大学生创新训练项目(编号:201511078015)
广州大学2014年度教育教学研究项目
关键词
光照强度
轮廓识别精度
机器视觉
误差补偿
illumination intensity
contour recognition
machine vision
error compensation
