PTZ摄像机视频与三维模型的配准技术研究

Research on real-time registration of PTZ camera videos and 3D model

针对基于投影纹理映射的虚实融合系统,提出了一种PTZ摄像机视频与三维模型实时配准的技术。选取PTZ摄像机若干特定姿态的子图像组成一张全景图像,进行最优匹配图像的搜索,用SURF图像配准的方法对实时视频图像进行透视变换,利用最优匹配图像的三维投影信息将实时视频图像精确投影到三维模型中。实验结果表明,该算法具有较高的准确性,适用于虚实融合系统中PTZ摄像机视频的三维配准。

For the virtual reality fusion system based on projective texture mapping,a method for real-time registration of PTZ camera videos and 3D model is presented.First,some specific pose images are choosen from PTZ camera to compose a big panoramic image,then the optimal matching image is searched,the SURF registration method is used to realize perspective transformation of real-time video image.Last,with the 3D projective messages of the optimal matching image,the real-time video image project is made to the 3D model exactly.The results show that the proposed method is highly accurate and is better for the registration of PTZ camera videos and 3D model in the virtual reality fusion system.