自动几何校正中摄像机的自动校正方法

为了解决多投影仪拼接显示系统自动几何校正中摄像机的自动校正问题,提出了一种基于图像识别的自动校正方法.首先对采集的图像进行分析,识别出目标区域,控制云台对摄像机进行定向,然后计算目标区域角点集的凸包,利用凸包的最小外接矩形判断出目标区域的姿态,并控制云台对摄像机姿态做出实时调整,实现了自动几何校正工作中摄像机的自动校正功能.

Auto-Adjust Method of Camera for Geometrical Auto-Calibration

In order to solve the problem of auto-adjust in geometrical auto-calibration camera of the multi-projector display system, an auto-calibration method is proposed which is based on processing the image to recognize the target area. First, it analyses the images collected and uses Harris comer detector to detect the comer set of the target area, and controls the platform to set the direction of the camera. Then, it calculates the minimum enclosing rectangle according to the convex hull of the comer set. By figuring out the slope of the minimum enclosing rectangle＇s edge, finally, it controls the platform to adjust the camera to make a real-time attitude adjustment. By then the auto-calibration of the working camera is realized.