In the field of military scouting, analysis is often carried by superposingaerial image on digital map; sometimes slant correction isrequiredto superpose correctly.

• 在军事侦察等领域,经常通过把航拍图像叠加在数字地图上进行分析,为了能准确地进行叠加,有时需要对航空图像进行倾斜校正。