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《Journal of Beijing Forestry University》 2010-03
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An extraction algorithm of a DEM based video visualization domain

FANG Lu-ming1;CHAI Hong-ling2;TANG Li-hua1;XU Ai-jun1.1 School of Information Engineering,Zhejiang Forestry University,Lin'an City,311300,P.R.China;2 Lishui Vocational and Technical College,Zhejiang Province,323000,P.R.China.  
In order to take full advantage of a video monitoring system and forest fire prevention GIS,we propose an extraction algorithm for video visualization based on a digital elevation model(DEM).By analyzing the visualization domain,given camera and lens parameters in the video monitoring system,we realized real-time extraction of video and the interaction between forest fire prevention GIS and the video monitoring system.We validated the algorithm by using Lin'an City in Zhejiang Province,as our study site.The test results show that the video extraction algorithm based on the DEM,is closely linked with the parameters of the video monitoring equipments and fits the demands for practical applications.
【Fund】: 国家自然科学基金项目(30972361);; 浙江省科技重大项目(2006C12109);; 浙江省自然科学基金项目(Y3090346)
【CateGory Index】: S762
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