Constructing of Seabed DEM and Quality Estimating based on High Density Depths
The methods of constructing seabed DEM based on high density depths are studied in the paper. Firstly the key technique of insert point step by step in constructing seabed DEM based on TIN is proposed. On the foundation of discussing the means for establishing seabed DEM based on grid, a method of estimating the quality of seabed DEM was proposed and several types of seabed terrain are compared. Experimental results demonstrate that the proposed method can estimate the influence of grid resolution on the quality of seabed DEM, and provide a theoretic foundation for selection of high density depths data to the accuracy requirement of a particular application.
high density depths Seabed DEM quality precision
Xiaodong Yin Yue Chen Qi Wang Lihua Zhang Weiming Xu
Department of Hydrography and Cartography, Dalian Naval Academy DNA Dalian, China
国际会议
太原
英文
621-624
2011-02-26(万方平台首次上网日期,不代表论文的发表时间)