Batch Geo-registration Method for Large-scale Topographic Map of the Republic of China Based on OpenCV and ArcPy:A Case Study of the 1∶50,000 Scale Atlas Published by Transmission Books and Microinfo
In the Republic of China era,both the Beiyang and Nationalist Governments undertook nationwide efforts to produce large-scale topographic maps.Digitizing,cataloging,and geo-registration the maps from this period to align with contemporary digital map enable a comparison of past and present,is a monumental challenge and holds profound significance.Utilizing the OpenCV and ArcPy libraries,our automated geo-registration method guarantees a high degree of accuracy while substantially reduces manual effort.The process has been validated through the geo-registration of the 1∶50 000 Scale Atlas Published by Transmission Books and Microinfo.Furthermore,by conducting a comparative analysis of the map coverage scope from the Map Collection of Mainland China at a Scale of 1∶500 000,we bolster the historical value of these maps and lays the groundwork for further research.
topographic mapgeo-registrationOpenCVArcPyTransmission Books and Microinfo
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