近几年，数码影像技术飞速发展，使图像的采集和应用跨上了一个新的台阶。
Digital image and video techniques develop fast recently, which makes image taking and using get a new high level.
基于非量测数码影像的地形数据采集信息系统设计与开发。
The design and development of the topographic data extraction information system based on non-metric digital imagery.
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