[OpendTect_Users] DiscVariance

[Raja.Mastouri at unil.ch]

Hello Paul,
 
Okay thank you very much.  I’m thinking the Disc Variance
is an attribute because it’s existed in the table 1 (for
all
attributes used and their parameter in the artificial Neural
Network) in the article "Semi-Automatic detection  of faults
in 3D seismic data".
  
Best regards,
Raja. 
----- Original Message -----
Expéditeur: Paul de Groot <paul.degroot at dgbes.com>
à: Raja.Mastouri at unil.ch
Cc: "users at opendtect.org" <users at opendtect.org>
Sujet: Re: [OpendTect_Users] DiscVariance
Date: Tue, 18 Dec 2012 14:35:56 +0100

> Hello Raja,
> 
> There is no attribute called "Disc Variance" in OpendTect
> but it can be easily created with the "Volume statistics"
> attribute (time-gate [0,0], output Variance, if you have
> Dip-Steering use it to extract the information along the
> reflectors instead of horizontally).
> 
> "Variance" is also a commercial attribute name used in
> Landmark software to compute their flavor of "coherency".
> It that is what you meant I recommend to use the
> "Similarity" attribute in OpendTect.
> 
> For more info on Volume Statistics and Similarity, please
> see the Attribute Matrix:
> http://opendtect.org/opendtect_attributes_matrix/
> 
> Best regards,
> 
> Paul.
> 
> -- 
> *Paul de Groot
> President
> dGB Earth Sciences, Nijverheidstraat 11-2, 7511 JM
> Enschede, The Netherlands.
> Tel. +31 53 43 15 155, Fax +31 53 43 15 104.
> paul.degroot at dgbes.com, www.dgbes.com, www.opendtect.org.
> 
> *
> On Tue, Dec 18, 2012 at 12:45 PM, <Raja.Mastouri at unil.ch>
> wrote:
> 
> >
> > Hello,
> > Please, Can you help me where I can find the Disc
> > Variance Attribute in OpendTect? And I need an
> > explication for this attribute.
> >
> > Best regards.
> > Raja MASTOURI
> >
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