|
|||||
|
|
| 月球车鱼眼相机的标定方法研究 | |
| 引用本文： | 王保丰,毛晓艳,唐歌实.月球车鱼眼相机的标定方法研究[J].宇航学报,2011,32(4). |
| 作者姓名： | 王保丰 毛晓艳 唐歌实 |
| 作者单位： | 1. 中国科学院遥感应用研究所,北京,100101;北京航天飞行控制中心,北京,100094 2. 北京控制工程研究所,北京,100190 3. 北京航天飞行控制中心,北京,100094 |
| 摘 要： | 提出了一种两步法来高精度地标定月球车中鱼眼相机的方法.第一步,采用球面投影方程来表示鱼眼相机的成像模型,并建立球面投影与透视投影间的转换关系.利用直线在球面投影中的像为椭圆弧这一性质,求得球面投影中像主点坐标和球半径.第二步,用求得的上述参数将球面投影图像转化为透视投影图像,并进行相机内参数的标定.用新标定得到的像主点坐标和球半径代替上次结果,再次进行投影转换和内参数标定,按此进行迭代计算,直至标定结果收敛于设定阈值.最后,本文还通过了一组实验验证了该方法的正确性. |
| 关 键 词： | 鱼眼镜头 立体视觉 相机标定 内参数 |
A Calibration Method for Fish-Eye Camera of Lunar Rover |
|
| WANG Bao-feng,MAO Xiao-yan,TANG Ge-shi.A Calibration Method for Fish-Eye Camera of Lunar Rover[J].Journal of Astronautics,2011,32(4). | |
| Authors: | WANG Bao-feng MAO Xiao-yan TANG Ge-shi |
| Institution: | WANG Bao-feng1,2,MAO Xiao-yan3,TANG Ge-shi2 (1.Institute of Remote Sensing Applications,Chinese Academy of Sciences,Beijing 100101,China,2.Beijing Aerospace Control Center,Beijing 100094,3.Beijing Institute of Control Engineering,Beijing 100190,China) |
| Abstract: | A two-step method is proposed in the paper for calibrating fish-eye camera of Lunar Rover accurately.First,the spherical projection equation is used as the fish-eye camera projection model,and the relation between spherical projection and perspective projection is modeled.Then using the property that the spherical projection of a line is ellipse arc,the coordinates of principal point of photograph and spherical radius are calculated.Second,by calculated parameters,spherical projection is transformed to pers... |
| Keywords: | Fish-eye lens Stereo vision Camera calibration Intrinsic parameters |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |