车位图像畸变的矫正与拼接研究

为了实现停车场空车位的快速检测和查询，提出一种车位图像畸变的矫正与拼接方法，将相邻摄像头拍摄的具有一定重叠区域的视频图像拼接为一幅能够全面描述停车场车位信息的大视场图像，从而为停车场空车位的快速检测做准备。由于停车场摄像头安装的视角偏移和透视效应，造成拍摄的图片存在纵向和横向畸变，为了直观地显示整个停车场各个车位的占用、空闲信息，同时也为了方便车辆管理，先将各个车位逐一矫正成同视角图片，然后再进行拼接，从而便于用户直接观察停车场中的空车位，也有利于需要自动检测车位时进一步进行图像处理。

Research of correction and stitching of parking image distortion

In order to achieve the rapid automatic detection and query of the empty parking spaces, a correction and stitching method of parking image distortion is proposed. Images with some overlapped regions captured by adjacent cameras are stitched into a large field image mosaic that comprehensively describes the parking information, so that the empty parking spaces are detected. And pictures show vertical distortion and horizontal distortion due to the camera perspective and perspective effects. For the sake of intuitively displaying the occupation and empty information of all parking spaces and facilitating the vehicle management, all parking images are corrected to be with the same perspective before image mosaic. Experimental results show that the algorithm is convenient for users to directly observe empty parking spaces, and it is conducive to process images further for automatic detection of the parking spaces.