NDLI: A fracture enhancement method based on the histogram equalization of eigenstructure-based coherence

Content Provider	Springer Nature Link
Author	Dou, Xi Ying Han, Li Guo Wang, En Li Dong, Xue Hua Yang, Qing Yan, Gao Han
Copyright Year	2014
Abstract	Eigenstructure-based coherence attributes are efficient and mature techniques for large-scale fracture detection. However, in horizontally bedded and continuous strata, buried fractures in high grayscale value zones are difficult to detect. Furthermore, middle- and small-scale fractures in fractured zones where migration image energies are usually not concentrated perfectly are also hard to detect because of the fuzzy, clouded shadows owing to low grayscale values. A new fracture enhancement method combined with histogram equalization is proposed to solve these problems. With this method, the contrast between discontinuities and background in coherence images is increased, linear structures are highlighted by stepwise adjustment of the threshold of the coherence image, and fractures are detected at different scales. Application of the method shows that it can also improve fracture cognition and accuracy.
Starting Page	179
Ending Page	185
Page Count	7
File Format	PDF
ISSN	16727975
Journal	Applied Geophysics
Volume Number	11
Issue Number	2
e-ISSN	19930658
Language	English
Publisher	Chinese Geophysical Society
Publisher Date	2014-07-24
Publisher Place	Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Fault fracture histogram equalization coherence, enhancement Geophysics/Geodesy Geotechnical Engineering & Applied Earth Sciences
Content Type	Text
Resource Type	Article
Subject	Geophysics

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