Population Analysis Unit Expression Considering Urban Scene Changes
Objectives:Population analysis unit is the spatiotemporal object and basic part of geographical analysis in different urban scenes.Aiming at the problem that the current unit expression model pays less at-tention to the description of specific population analysis features and lacks the correlation method and referen-ce standard of scene and unit feature expression.We propose a population analysis unit expression model considering urban scene change.Methods:The model first considers the unit's demand for feature descrip-tion of population spatiotemporal analysis in two-dimensional space,as well as the dissimilarity of compo-nents such as objects and environments of urban scenes,forming a population analysis unit expression model that integrates scene components.Then,based on the content of model expression,the relationship be-tween urban scene and population analysis unit is analyzed.Referring to the geographic scene modeling method,the correlation characteristics and reference standards between scene and population analysis unit are constructed.Results:In order to verify the rationality of the method,we take the epidemic analysis sce-nario in Wuhan City,Hubei Province,China as a case to realize the population analysis unit modeling and attribute feature dynamic update considering the scenario change.The results show that the proposed model can correlate urban scene information with population analysis unit characteristics according to standards and help to improve unit description ability.Conclusions:By associating the information and characteristics of urban scene elements,the proposed model can enhance the expression ability of units and map the infor-mation and characteristics of urban scene in a more standard and reasonable way.It can also provide a referen-ce for the geometric construction of the unit and the interpretation of the analysis results.
population analysis unitspatiotemporal objecturban sceneexpression modelscene ele-mentassociated featureformal description
万方数据
维普
