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Erschienen in:
2015 | OriginalPaper | Buchkapitel
A New Approach for Orthogonal Representation of Lunar Contour Maps
verfasst von : Junhao Lai, Ben Ye, Zhanchuan Cai, Chuguang Li, Yu Jia
Erschienen in: Image and Graphics
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Abstract
Impact craters are typical lunar areas which can reflect the characteristics of lunar surface, so the studies of them are one of the key tasks of lunar exploration. A class of complete orthogonal piecewise polynomials in L2 [0,1] called V-system is introduced in this paper and this new approach can be used to represent the contour lines of lunar DEM data. It is not only introduced for accurately representing the contour lines but also eliminating effectively the Gibbs phenomenon. Based on V-system, there is an algorithm for transferring a given contour to V-spectrum. The proposed algorithm is intuitive, easy and fast. Some examples of lunar contour maps’ representation in V-system are given.