Changes between Version 13 and Version 14 of Tutorial/DisplacementMeasuredByImageCorrelation


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Timestamp:
Jan 30, 2015, 4:39:16 PM (6 years ago)
Author:
vaillant1p
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  • Tutorial/DisplacementMeasuredByImageCorrelation

    v13 v14  
    1515
    1616 * Select the mode 'displacement' from the menu '''[!ListCompareMode]''', with respect the origin index 1 (first image by default). Then the menu for choosing image pairs on the right hand side desappears, as the correlation for each image are done with respect to the reference one, taken as origin for the displacement.
    17  * Choose a  fairly large correlation box, '''[CorrBox]''' =[31 31], corresponding to a coarse pattern, and considering that spatial resolution is not critical.
     17 * Choose a  fairly large correlation box, '''[!CorrBox]''' =[31 31], corresponding to a coarse pattern, and considering that spatial resolution is not critical.
    1818 * Chosse a large search box, '''[Search]''' =[107 107] as we need to capture the maximum displacement.
    1919 * Select '''[!CorrSmooth]''' =2 which corresponds to coarse 'particles': large correlation curves. See '''[!TestCiv1]'''.
     
    2222 * Use the same correlation box, a smaller search zone (as we start form the prediction of Civ for Shift) in '''[CIV2]''', '''FIX2]''' and '''[PATCH2]'''.
    2323
     24[[Image(Tutorial9 - Civ displacement.png)]]
     25
    2426== Observing the civ data ==
     27
     28It is possible to show different data such as velocity, vorticity, divergence, strain etc from the previous results. Select from the menu bar tool '''[Field]''' the data needed and go through the different images using the arrows '''[<-]''' and '''[+>]'''.
    2529
    2630velocity, vorticity, div