基于圆形标定物的矿井下人员的定位方法

Positioning Method of Underground Personnel Based on Circular Calibration Object

针对煤矿井下工作环境昏暗和事故频发,对工作人员位置的不确定性提出了一种基于圆形标定物的矿井下人员的定位方法。利用人员目标携带的摄像机采集环境图像,通过YUV颜色空间对采集到的原始图像进行预处理,采用最小二乘法对圆形标定物进行椭圆拟合,最后根据椭圆长轴使用单目测距的方法实现精确定位。实验结果表明:利用圆形标定物的直径进行测距,符合矿井下人员定位的标准。

Aiming at the dark working environment and frequent accidents in coal mine, and the uncertainty of staff position, a positioning method of staff under coal mine based on circular calibration object is proposed. The camera carried by the human target is used to collect the environment image, the collected original image is preprocessed through YUV color space, and the circular calibration object is ellipse fitted by the least square method. Finally, the monocular ranging method is used to achieve accurate positioning according to the long axis of the ellipse. The experimental results show that the distance measurement using the diameter of circular calibration object meets the standard of personnel positioning under the mine.