地理国情普查标准时点核准技术研究

Study on Approved Technology of Geographical Conditions Census Standard Point

通过进一步核准地理国情普查各类成果内容的正确性,形成符合统一时点要求的普查成果,为下一步地理国情普查本底数据库、统计分析提供可靠数据,为今后开展常态化监测提供详实的监测数据基础。以丰县地理国情普查标准时点核准为例,充分运用高分辨率传感器、POS无控制点测量和移动测量等遥感技术手段,通过航天、航空、地面一体化的对地观测形成了多源多尺度的影像数据。内业充分利用普查阶段收集的解译样本辅助内业解译,确实无法识别的区域则通过收集的其他专题资料明确已经发生变更的区域。再采用内外业一体化调查技术,内业预判、外业调查、补绘调绘的方法实施地理国情普查。在内业高精度遥感影像判读基础上,快速采集和编辑调查数据,既保证了普查成果的客观可靠,又保证了成果精度的精确统一。

Through further approved correctness of various results in Geographic National Census,the census results consistent with the requirements of point is formed,that provide an reliable data for geographical conditions census database and statistical analysis in the next,and provide data basic for normalization monitoring further more.A case is studied on national standard of national conditions in Fengxian County,some remote sensing methods of high resolution sensor,POS non-control point measurement and mobile measurement is used.Multi source and multi scale image data is accomplished by aerospace,aviation and ground integrated earth observation.Taking interpreting samples collected during reconnaissance stage as interpretation in interior work.For some area that cannot identify is to ensure changed area by collected other thematic data.Then carry out the National Census by using internal,external industry survey technology,industry pre-judgment,outside investigation.On the basic of high precision remote sensing image interpretation of interior work,acquisition and editing of survey data rapidly that not only can ensure the census results objectively and reliability,but also can make sure the unified precision of the result..