航摄像主点符号化索引图的制作技术

传统的像片索引图制作方法存在工艺繁琐、手工操作步骤多、作业效率低等缺点。为提高航摄成果整理的作业效率 ,本文提出了一种新的像片索引图的概念———航摄像主点符号化索引图。航摄像主点符号化索引图的制作是基于 1∶10 0万数字线划地图 (DLG)数据库 ,将航摄鉴定表信息、像片覆盖信息、航空摄影信息和地物要素信息综合起来 ,以 1∶10万或 1∶5万地形图为分幅单元叠加整饰制图。实验结果证明航摄像主点符号化索引图不仅注记要素齐全 ,版面整洁、美观 ,而且以标准地形图为分幅整饰单元 ,有利于航摄像片的测区、分区、图廓覆盖、航线分布等情况的检查与验收 ,有利于航摄成果资料的统一管理 ,以及测图时像片的快速检索。

The Technology of producing index maps of symbolical arial photos'principle points

Chinese Specification of Aerial Photographic for topographical mapping prescribes that the photomosaic maps must be provided as one of the aerial photographic production. But the original method to made this map is very inconvenient and time consumed. A new conception of photomosaic maps will be introduced in this article, and also the processing technology. The new photomosaic map's name is the Index Maps of Symbolical Aerial Photos' Principle Point. It is based on the 1∶1,000,000 digital line graphic(DLG) database, including the critical information of arial photogrammetry, the aerial photos' coverage information, aerial photogrammetric information, ground feature information and etc. The experience results indicate that this new kind of photomosaic map can not only make the map more clear and beautiful, but also is helpful for its checking or management.