基于控制线模式的高分辨率遥感影像几何纠正模型

在数字摄影测量和遥感数据处理工作中, 通常在物方很难找出与像方对应的地面点, 所以控制点大多数需要去布标才能在像片上找到明显的对应点。对于这种情况, 研究利用高级几何特征地物如直线代替点作为控制要素进行遥感影像的几何精纠正的可行性, 进一步采用基于控制线模式的通用成像模型的合理性。并通过实验来分析基于控制线模式的几何纠正模型的精度。

Line Based Geo-CorrectionModel for HRSI

For commercial high-resolution satellites,access to calibration and ephemeris data have been withheld from users,and therefore alternative empirical rectification models have been developed.In general,most of these models are based on the use of control points.Yet,in photogrammetry,it's hard to find ground control points which opposite to the control points in image.And much attention has to be paid to deal with GCPs.To these situation,the paper discusses the feasibility of substituting control line for control point in geo-correction and rationality of Line Based Universal Geo-Correction Model for HRSI.Real data have been used to check the validity and fidelity of the model,and the results show that the LBTM performs to a level comparable with existing point based transformation models.