According to the main factors which affect the mapping precision, it is shown that difference between the digital photogrammetry mapping and analog photogrammetric plotting is comparatively analysed.
结合生产实践，从影响成图精度的几种因素的估算方法入手，比较分析了全数字化测图仪器同模拟测图仪器之间的精度差别。
A new mapping tool-video-plotting system has appeared by combining microcomputer with photogrammetry.
微型计算机与摄影测量相结合，出现了一种新的测图工具——视频测图系统。
Aerial photos are the basis of the full digital photogrammetry and directly affect the quality of mapping, therefore, aerial data should be carefully checked and accepted.
航摄像片是全数字摄影测量的重要依据，直接影响成图质量，必须认真进行航摄资料的检查验收工作。
Applications of digital survey technique in survey of water resources and hydropower projects and experience on existing map digitalization, digital mapping, and digital photogrammetry are introduced.
介绍了数字化测绘技术中的原图数字化、数字测图、数字摄影测量几个方面在水利水电工程测量实践中的应用体会和经验。
Currently, satellite photogrammetry has been one of the mostly used methods of topographic mapping.
当前，卫星摄影测量已经成为地形图测绘的主要手段之一。
Aerial photography and photogrammetry, airborne and terrestrial laser scanning, mobile mapping system and GPS positioning contrihuted to the great increase of accuracy and speed of data acquisition.
机载与地面激光扫描、地面移动测量与GPS定位等传感器的精度与速度都有了明显的提高。
Aerial photography and photogrammetry, airborne and terrestrial laser scanning, mobile mapping system and GPS positioning contrihuted to the great increase of accuracy and speed of data acquisition.
机载与地面激光扫描、地面移动测量与GPS定位等传感器的精度与速度都有了明显的提高。
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