海岸带遥感影像的几何精校正方法

The Method of Geometric Precision Correction for Remote Sensing Images in Coastal Zone

针对传统方法无法解决缺少地面控制点且控制点分布不均匀的海岸带遥感影像的几何精校正问题,提出了一种基于空间投影的海岸带遥感影像几何精校正新方法。研究了空间投影模型,给出了相应的投影公式,并对海岸带上的两幅遥感影像进行几何精校正。实验结果表明:采用空间投影方法,只需少量地面控制点,就能建立遥感影像与空间投影间的对应关系,且校正精度优于传统校正方法。该方法在海岸带遥感监测和自然资源开发利用上有很好的应用前景。

To solve the problem that traditional methods are weak in geometric precision correction of the coastal zone remote sensing images with few pockety ground control points, a new method was put forward based on space projection. In this paper, the space projection model was studied, with relevant projection formulas derived,and geometric precision correction was conducted for two remote sensing images in coastal zone. The experiment results show that the corresponding relation between remote sensing images and space projections can be founded with a few ground control points, and the geometric correction precision of the space projection method is higher than that of a traditional method. This new method has broad prospects in remote sensing monitoring and natural re-source exploitation in coastal zone.