电子罗盘数据计算矫正数据，拟合椭圆就行观察-Electronic compass data to calculate the corrected data, fitting an ellipse on the observation

硬件为友善之臂的smart210开发板，项目是实现摄像头采集图像经过opencv处理，检测出椭圆或圆，然后在LCD（S70）上显示，椭圆算法是基于opencv的轮廓检测和最小二乘拟合，并在算法中加入了一些条件滤除不是椭圆的轮廓，经测试，精度较好-Hardware is a friendly arm of smart210 development board, the project is to achieve the camera to capture images after processi