自动化学报2007，Vol.33Issue(8)：801-808,8.
一种反射折射摄像机的简易标定方法
An Easy Calibration Method for Central Catadioptric Cameras
摘要
Abstract
Central catadioptric cameras are widely used in virtual reality and robot navigation, and the camera calibration is a prerequisite for these applications. In this paper, we propose an easy calibration method for central catadioptric cameras with a 2D calibration pattern. Firstly, the bounding ellipse of the catadioptric image and field of view (FOV) are used to obtain the initial estimation of the intrinsic parameters. Then, the explicit relationship between the central catadioptric and the pinhole model is used to initialize the extrinsic parameters. Finally, the intrinsic and extrinsic parameters are refined by nonlinear optimization. The proposed method does not need any fitting of partial visible conic, and the projected images of 2D calibration pattern can easily cover the whole image, so our method is easy and robust. Experiments with simulated data as well as real images show the satisfactory performance of our proposed calibration method.关键词
Central catadioptric camera, calibration, 2D calibration pattern, computer visionKey words
Central catadioptric camera, calibration, 2D calibration pattern, computer vision分类
信息技术与安全科学引用本文复制引用
邓小明,吴福朝,吴毅红..一种反射折射摄像机的简易标定方法[J].自动化学报,2007,33(8):801-808,8.基金项目
Supported by National Natural Science Foundation of China (60575019), the National High Technology Research and Development Program of China (863 Program) (2006AA01Z116), and Institute of Automation Chinese Academy of Sciences Innovation Fund For Young Scientists （60575019）
