鱼眼图像校正软件的关键技术研究

Study of Key Technology of Distortion Correction Software for Fisheye Image

为了满足全景监控工程的特殊要求,选用鱼眼镜头作为图像传感器的成像单元进行图像采集。提出了新的鱼眼图像校正区域的确定方法,并采用球面透视投影和柱面展开两种算法对鱼眼图像进行校正,同时实现虚拟PTZ控制。经测试,该软件对各种监控场合有很强的适应性,能够满足全视场无盲区的监控要求。

To meet the requirement of panoramic monitoring projects,a fisheye lens was used as the imaging unit of the image sensor for imaging.A new method was brought in estimating the circular area of the fisheye image.Sphere perspective projection and cylinder expanse model were used to solve the problem of distortion.At the same time,virtual PTZ control was realized.According to the test,the software has a strong robustness in kinds of monitoring situation,it can meet the requirement of full-field monitoring without blind zone totally.