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Omnidirectional Roughness Algorithm for Topographic Signature Analysis of Lunar Craters
Omnidirectional Roughness Algorithm for Topographic Signature Analysis of Lunar Craters
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机译：全向粗糙度算法在月球陨石坑地形特征分析中的应用
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#$%^&*AU2017100063A420170223.pdf#####ABSTRACT A method executed by a computer system to construct an omnidirectional 5 roughness (OR) map of a lunar crater based on a data set of a digital elevation model (DEM) of surface textures of the lunar crater is provided. The method includes setting a center and a first point of the data set, selecting a moving window, utilizing a one point-to-point step when the moving window slides over the DEM, calculating a morphological surface roughness (MSR) 10 that detects a vertical roughness of the lunar crater, calculating a topographic frequency coefficient (TFC) that detects a horizontal roughness of the lunar crater, constructing the OR map, and displaying the OR map to show a surface roughness of the lunar crater. 44 M006.057 Spec draft final22/25 N." '4~ 4 4. N * * N .4, 4 -~ 'N.' 4-. ' 4- N~~4N~.'N44~ ~ NN N. ~4 N4.N'.~*N 4. '' N N'N' 4. 4-''' *NN N N ' .4. N Figure 21A Figure 21B '4..N4.Nt44)O4-NN'45 ,NN'tNN' .N*'4-N 4 NM("dN' N '~' 4. "~ 4':-' .NN.NNNN.C.N.NNNNX*NNNN*N. .4.NNNN.~N~4N~ 'N' 4 *N 4 44 4 4 4 4' ~' .. 4 .4 ---4. 4 N -- ~N4... 4 4 4 4...NNNN..4....NN. .4-... '. " 4- N 4 .4.........-4NNNNNNN4.NNNN.N4N 4- '4, NN '4 NN ~N'' N4 Figure 21C Figure 21D
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