一种新的三维映射几何建模方法, 即通过弧面映射变换, 先获取目标图与原图的像 素一一映射关系, 再采用四点线性插值方法, 实现了对原图像的桶形几何失真校正-This paper put s forward a kind of new 3-dimension mapping g eometr y mo deling metho d: first w e obtain the o ne by one mapping relat io ns between the o bject pictur