多光谱相机的几何标定方法

对多光谱卫星相机进行标定，应用三组图像，每组图像包括四张不同通道的照片。在每组图像里，识别固定目标并且测量它们的坐标。目标点的坐标通过航测照片提取并用手持GPS定位仪进行测量。应用最小二乘法将图像的坐标转换为适当的实际坐标，并计算相机的内外方位元素。

Geometric Calibration Method of the Multi-spectral Camera

The geometric calibration of the muhi-spectral camera is aimed using three sets of images in which well-defined target points were identified and their image coordinates is measured. The target points＇world coordinates were extracted from aerial photos and collected from hand-held GPS receiver. A least square parameter estimation was then applied to fit the image coordinates to the world coordinates , thereby computing best estimates for the camera position and orientation as well as all the required geometric camera calibration parameters.