Self-calibration method for eccentric angle in hyperspectral and LiDAR integrated airborne system
文献类型：会议论文
| 作者 | Yang Gui; Xie Feng; Liu Chengyu; Shao Honglan; Lin Jianyuan; Wang Jianyu; Guo Ying |
| 出版日期 | 2017 |
| DOI | 10.1117/12.2267406 |
| 英文摘要 | Eccentric angle between IMU and the collimation axis of airborne sensor is one of main reasons causing geometric correction error. Currently the application of the hyperspectral and LIDAR integrated system are greatly affected by lack of universal calibration methods which can calibrate the hyperspectral data and LiDAR data simultaneously. An eccentric angle calibration model for hyperspectral and LiDAR integrated system is proposed meanwhile a self-calibration method using '#' shaped flight strip is designed to validate the new calibration model. Firstly the homogeneous points are searched from all geometrically corrected flight strips by automatic matching methods. Secondly control points obtained by averaging the coordinates of the homogeneous points are applied to solve the calibration model to get the eccentric angle. Finally the point clouds are corrected geometrically with the solved eccentric angle then the above steps are repeated until the solved eccentric angles are stable. An experiment was carried to testify the new calibration model and resolving method which shows that the proposed model is of high-precision validity and the resolving method is of fast convergence. The airborne sensors can acquire a plane precision of 0.807 m (about 1.2 pixels) without any ground control points and the LiDAR can acquire a plane precision of 0.437 m and elevation precision of 0.15m. 漏 2017 SPIE. |
| 语种 | 英语 |
| 源URL | [http://202.127.2.71:8080/handle/181331/12104]  |
| 专题 | 上海技术物理研究所_上海技物所 |
| 作者单位 | Shanghai Inst Tech Phys |
| 推荐引用方式 GB/T 7714 | Yang Gui,Xie Feng,Liu Chengyu,et al. Self-calibration method for eccentric angle in hyperspectral and LiDAR integrated airborne system[C]. 见:. |
入库方式： OAI收割
来源：上海技术物理研究所
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