公开(公告)号：US07362969B2

公开(公告)日：2008-04-22

申请号：US10156189

申请日：2002-05-29

申请人： Daniel G. Aliaga ,  Ingrid B. Carlborn

发明人： Daniel G. Aliaga ,  Ingrid B. Carlborn

IPC分类号： G03B37/00 ,  G03B43/00 ,  H04N17/00

CPC分类号： G02B13/06 ,  G06T5/006 ,  G06T7/80

摘要： A paraboloidal catadioptric camera is calibrated by relaxing the assumption of an ideal system to account for perspective projection, radial distortion, and mirror misalignment occurring within the camera system. Calibration points, which are small and visually distinct objects, are distributed at fixed locations within an environment. Omnidirectional images are captured by the catadioptric camera at different locations of the environment. Data points are obtained by identifying the location of the calibration points in each captured image. An optimization algorithm best-fits the data points to a perspective camera model in order to derive parameters, which are used to calibrate the catadioptric camera.

摘要翻译： 抛物面反折射相机通过放松理想系统的假设来校准，以考虑在相机系统内发生的透视投影，径向失真和镜面未对准。 校准点是小且视觉上不同的对象，分布在环境中的固定位置。 反射折射摄像机在环境的不同位置捕获全方位图像。 通过识别每个捕获图像中的校准点的位置来获得数据点。 优化算法最适合数据点到透视相机模型，以便导出用于校准反折射相机的参数。