3dbuilding information model for facilitating dynamic analysis of indoor fire emergenc y
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摘要: 基于三维建筑空间表达充分结合建筑防火专题语义信息建立了面向建筑物内部空间划分与通达性分析的一体化语义描述并结合防火部件层次的动态特征发展面向室内火灾动态疏散过程的三维建筑信息模型从而辅助火灾应急疏散的三维空间逃生分析 基于实验构建的三维建筑信息模型及其基于语义的动态联通网络证明了其在室内火灾动态疏散中的特殊价值Abstract: a vge－basedbimifc information－supported and semantic anal ysis oriented 3dbuildinginformation model is proposed for facilitating indoor fire emergency evacuation．by taking the dynamic thenfeature points are extracted by using improved harris al gorithm ei ghbor information aroundthese points is described using color invariant value as input information．finall ythe points betweentwo images are matched using correlation coefficient．to demonstrate the feasibilit y of approachex－periments with groups of street view imagescompared with the traditional sift al gorithm．show thatthe proposed al gorithm can not onl y intensive match pointshi gher matching correct rate speed validity．
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