一种斜视画幅遥感相机异速像移计算与补偿实现

以一种斜视胶片步进画幅相机为例，介绍了一种基于该相机的像移补偿策略及具体实现过程。画幅相机由于横向视场较大，使得每幅横向各个视场目标对应物距各异，最终导致目标像相对探测器产生了异速像移。对产生异速像移实质给出了数学推导，对偏流机构存在的必要性进行了分析，提出了一种利用两轴旋转扫描镜，同时结合旋转偏流机构和曝光帘缝的像移补偿方案。最后，在已知相机俯角和视场角等信息情况下，推导出了具体的像移补偿公式。

Methods and Theories Analysis of Image Motion Compensation Based on LOROP Cameras

This paper takes a long range oblique photography(LOROP) frame camera for an example.It deduces the whole course how to set up image motion mathematical model.Frame camera is a mode of operation for a tremendous increase in the across line of flight field of view.This causes that different field of view has different object distant,which results in heterogenic image motion vector on the film.It introduces mathematic demonstration about the reason of heterogenic image motion vector,analyzes the necessity of drift mechanism and puts forward a compensation method by using scan mirror,drift mechanism and exposure slit.At last,derives specific image motion compensation formula about depression and field of view.