A Research Of The Quality Control Method Of Aerial Photogrammetry Mapping

With the rapid development of computer and related technology industries and promoteeach other, Surveying and Mapping Industry has gradually transformed to the geographicinformation industry. Spatial data is an important part of GIS. DLG as the most basic, andultimately to the information carrier, but also the most basic GIS Currently, the most widelyused spatial data. Study the data quality control method has important theoretical and practicalsignificance.Currently, digital aerial mapping mode is the main current DLG, so research qualityaerial digital topographic map content and methods of control is particularly important. Thispaper analyzes the root causes as well as the quality aerial digital data quality in a controlledmanner, the factors affecting the quality of the data analyzed, summarized the method ofaerial digital quality control and discusses the research methods in the production process ofcritical quality control, such as an empty three encryption, flat position accuracy controlmethods. Finally, Silk Road (Gansu) aerial survey project sites of interest, for example, adetailed description of the whole process of quality control, the final completion ofhigh-quality digital topographic maps DLG products.