Coarse-to-Fine Extraction of Small-Scale Lunar Impact Craters From the CCD Images of the Chang’E Lunar Orbiters

2019 ◽  
Vol 57 (1) ◽  
pp. 181-193 ◽  
Author(s):  
Zhizhong Kang ◽  
Xingkun Wang ◽  
Teng Hu ◽  
Juntao Yang

The idea of this meeting came to the organizers from the type of considerations set out by Dr Kelly in his opening remarks, namely that we see many apparent similarities between phenomena of large scale in geophysics and phenomena of small scale in metallurgy and we would like to understand their significance. Dr Kelly mentioned triple junctions between tectonic plates and between metal grains. Another example, which goes back many years, is that structures in mountains can be simulated by flow in materials such as plasticine, and Dr King has showed us how patterns of faulting look much the same over a wide range of scales. Yet another, by now well known, example is that lunar impact craters look almost indistinguishable over a range of sizes from a few micrometres up to hundreds of kilometres. Dr Kelly remarked to me this morning that the similarity between geophysics and metallurgy extends to terminology, for the geophysicist has his fault and the metallurgist his defect.


2017 ◽  
Vol 7 (1) ◽  
pp. 5 ◽  
Author(s):  
Min Chen ◽  
Mengling Lei ◽  
Danyang Liu ◽  
Yi Zhou ◽  
Hao Zhao ◽  
...  

2019 ◽  
Vol 124 (11) ◽  
pp. 2754-2771 ◽  
Author(s):  
R. N. Watkins ◽  
B. L. Jolliff ◽  
K. Mistick ◽  
C. Fogerty ◽  
S. J. Lawrence ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document