摘要
介绍了面阵CCD相机的径向畸变、偏心畸变模型,建立了用于非量测相机标定的扩展共线条件方程。引入了四元数姿态描述方法,利用单位四元数替代外方位角元素(ω,φ,κ)构建旋转矩阵,建立了基于单位四元数的相机标定数学模型。采用室内三维控制场对小像幅面阵CCD相机进行了标定实验,取得了优于0.2个像素的定位精度。
The paper has introduced a model of radial distortion and eccentric distortion for array CCD camera and established the expand collinearity equation for calibration on non-measurable camera.Quaternion has been used to describe the attitude parameters.The mathematical model has been established for camera calibration based on unit quaternions.The rotation matrix is constituted of unit quaternions instead of Euler angels（ω,φ,κ）.The calibration experiments of small size array CCD camera have been done by using 3D control field indoors.We have acquired better orientation precision above 0.2 pixel.
出处
《海洋测绘》
2011年第3期40-43,共4页
Hydrographic Surveying and Charting
关键词
四元数
相机检校
欧拉角
径向畸变
偏心畸变
quaternion
camera calibration
Euler angels
radial distortion
eccentric distortion
