In order to improve the accuracy of overlapping by analyzing the overlapping method by existing coordinate system in overlapping orthophoto images and continuous cadastral maps in this study,By using the location explanatory map, the following conclus...
In order to improve the accuracy of overlapping by analyzing the overlapping method by existing coordinate system in overlapping orthophoto images and continuous cadastral maps in this study,By using the location explanatory map, the following conclusions were obtained.
(1) In this study, we analyzed the method of superimposing orthographic images and continuous cadastral maps on a multi-district area including the map area, the coordinate area, the diagram area and the coordinate area using the existing regional coordinate system and the world geodetic system,Regardless of the accumulation region, there is a difference in superimposition when the continuous cadastral map and orthographic image are superimposed on the coordinate system. This phenomenon can be improved by superimposing the continuous cadastral map again using the measurement point location explanatory mapthere was.
(2) As a result of applying this study, five regions of Wonpyeong - dong, Gumi - si, Gumi City were selected and the continuous cadastral map and orthographic image were overlapped using the coordinate system. As a result, orthographic images and continuous cadastral maps were disagreed from 0.55m to 2.45m, In addition, the orthographic image and continuous cadastral map were disagreed up to 0.25m ~ 0.85m in the selected 10 areas of Samrakdong area in Gimcheon city where the coordinate area and the map area are attached. Finally, there was a difference of 0.48m in Chonju city in Jeonju city. It was confirmed that the continuous cadastral map in the range of 0.25m ~ 2.45m and the orthoimage image are inconsistent regardless of the scale and the coordinate system. However, we could compensate the discrepancies in the range of 0.10 ~ 2.15m by re - superimposing the continuous cadastral map using the explanatory map of the measurement points of each local parcel. This suggests that the overcorrection of continuous cadastral maps and orthoimages improves by correcting the range over 90% of the total inconsistencies in the study area.
(3) The orthodontic image and the continuity map are overlapped and used in various fields of business such as the road name address basic road map business of the current country, investigation of the state of various countries and common land, and the terrain drawing notice business.In addition, if the accuracy of the superposition is improved and applied to various tasks, it will be possible to grasp the accurate status of the land, as well as the cadastral survey and cadastral survey. In addition, it is necessary to study and solve the problem of technical overlapping as well as the policy aspect as a solution to the overlapping and separation between the recognized land areas and the overlapping of orthographic images.