Automatic extraction of lunar impact craters from Chang’E images based on Hough transform and RANSAC

Luo, Zhongfei; Zhang, Kang

doi:10.1117/12.2234683

Cited by 1 publication

(1 citation statement)

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“…Our study is based on a semi-automatic procedure that provides a quantitative analysis of morphologies extracted by visual interpretation. Automatic extraction of landforms is a well-known methodology to obtain quantitative data from DEM and spectral imagery in geological and planetary studies [33], [34], [35], [36]. Morphometric variables are widely used in geomorphic research supporting models of evolution of landforms [37], [38].…”

Section: Methodsmentioning

confidence: 99%

New Morphometric Data of Lunar Sinuous Rilles

Podda

Melis

Collu

et al. 2020

IEEE J. Sel. Top. Appl. Earth Observations Remote Sensing

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On the surface of the Moon a large number of linear features are recognizable. Long and narrow depressions are defined as lunar rilles. Their morphology has different characteristics, related to their origin. Among these, the sinuous rilles represent lineaments considered remnants of shallow lava channels. In this study, a quadrant of the Moon has been analyzed to recognize and map this type of morphology. An accurate morphometric analysis has been accomplished, using the Lunar Reconnaissance Orbiter Camera (LROC) which has a resolution of 100 m/pixel, and the Digital Elevation Model from Lunar Orbiter Laser Altimeter (LOLA) with a resolution of 6 m/pixel. Fifty-one sinuous rilles have been recognized in the study area, eighteen of which are new, improving a previous catalogue. The resulting quantitative and qualitative measurements were analyze and compared each other' to identify potential morphological trends. Different relationships between morphological parameters have been proposed, and the results enhance the importance of substrate composition in the evolution of these features, emerged mainly from the variations in width and depth values. The linear relationship between these two parameters is consistent with the idea that erosion efficiency acts proportionally in both vertical and horizontal directions. Partial filling phenomena by subsequent lava flows probably occurred in some sinuous rilles located in maria. The hypothesis of a constructive genesis requires further investigation to identify the levees created by sinuous rilles' formation process.

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