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《Science of Surveying and Mapping》 2003-03
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The vector relief data compression based on the mulit-band wavelet

WANG Yu hai, ZHU Chang qing(Institute of Surveying and Mapping, Information and Engineering University, Zhengzhou 450052, China)  
It is important to compress the vector relief data in the studying of the terrain environment simulation, cartographic generalization and GIS. Using the theory of multi band wavelet analysis and the characteristic of the vector relief data, this paper developed the model and the method of the vector relief data compression based on multi band wavelet analysis, and analyzes the relation and the difference between the mulit band wavelet transformation and the two band wavelet transformation theoretically, and studies the superiority of mulit band wavelet transformation. Based on the experiments of the vector relief data, the data compressed by mulit band wavelet can retain multi level, multi detail and structural feature very well.
【Fund】: 国家自然科学基金(40271095);; 武汉大学测绘遥感信息工程国家重点实验室基金
【CateGory Index】: P208
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