一种基于图像处理的水平尺气泡偏移量检测系统

摘要

In the assembling of the level bars,the accuracy of the position between the level bubble and the level bar is definitely important.The automation of this working also needs to be developed,so we have developed a system for achieving automatic detection.First,we found the vertical direction of the bubbles generally by counting the pixels in horizontal direction.Second,the offsets of the bubbles and the horizontal positions of the mark lines were detected by an optimized gradient method.Lastly,the relative offsets of the bubbles were calculated by the formation we designed.The effectiveness of this system was verified by analyzing the experimental results.Compared with machine vision system inspection,our scheme has lower cost and is beneficial to be popularized in industrial production.%为了提高水准泡水平尺的关键部件在装配过程中的位置精度,同时也从一定程度上提高这一过程的自动化程度,设计一种基于机器视觉的水准泡中的气泡偏移量检测系统.首先通过图像水平方向的像素统计大致确定气泡的垂直位置.然后采用改进的梯度方法识别气泡以及刻度的水平位置.最后通过公式计算出气泡在水平方向上的偏移程度.实验结果验证了该方案在气泡位置检测中的有效性,相比较机器视觉系统检测,该方案成本较低,利于在工业生产环节推广使用.