Abstract
In order to enhance the organization and management efficiency of multi-source heterogeneous data in field data collection process for mobile Geographic Information System(GIS),based on the analysis of the limitations of the existing methods and structural features of the data,a new kind of fusion model based on EXchangeable Image File(EXIF) was proposed in which the digital image was used as carrier to fuse the information of spatial location and general attributes.In the proposed model,associated spatial information and general attributes were embedded into digital image to achieve the purpose of being highly integrated.A field data collection system was designed and developed based on the model,and applications of this system in the fields of agricultural resources management and decision analysis verify the validity and actual result of the model.
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