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目前利用数字摄影测量技术,已能生产数字线划图、正射影像图、数字高程模型、立体配对影像图等多品种的摄影测量产品。利用这些产品,结合图形图像处理技术、数据库应用技术,建立虚拟现实的立体图形系统来代替现在普遍流行的传统的数字线划地图,进行铁路线路选线设计,将为铁路在三维环境下进行设计提供了新的思路和方法。
At present, the use of digital photogrammetry technology, has been able to produce digital line drawing, orthophoto, digital elevation model, stereo matching images and other varieties of photogrammetric products. The use of these products, combined with graphic image processing technology, database application technology, the establishment of virtual reality stereo graphics system to replace the now popular traditional digital line drawing, the railway route alignment design, the railway will be designed in three-dimensional environment Provide new ideas and methods.