Changes between Version 11 and Version 12 of Tutorial/AdvancedParticleImagingVelocimetry


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Timestamp:
Jan 15, 2015, 4:30:01 PM (6 years ago)
Author:
vaillant1p
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  • Tutorial/AdvancedParticleImagingVelocimetry

    v11 v12  
    1414== Global PIV ==
    1515== PIV in two subregions ==
    16   The PIV computation is launched from the GUI ''''civ' ''' opened from uvmat by the upper bar command '''[RUN/PIV/CIV]'''. This GUI can be also directly opened by typing 'civ' in the Matlab command window, and the input  image file then opened by the upper bar command '''[Open/Browse]''', like in the GUI uvmat. The name CIV means Correlation Imaging Velocity to stress that the method relies on image correlations, which detect the displacement of image textures, not necessarily from particles.
     16The PIV computation is launched from the GUI ''''civ' ''' opened from uvmat by the upper bar command '''[RUN/PIV/CIV]'''. This GUI can be also directly opened by typing 'civ' in the Matlab command window, and the input  image file then opened by the upper bar command '''[Open/Browse]''', like in the GUI uvmat. The name CIV means Correlation Imaging Velocity to stress that the method relies on image correlations, which detect the displacement of image textures, not necessarily from particles.
    1717
    1818The PIV operation depends on many parameters, but the default values proposed by the GUI provide a good first approach in many cases. Press '''[RUN] ''' to get the result. The button is then colored in grey until the computation is finished. The operation produces a  file with format netcdf, extension '''.nc''', in a subdirectory called ''''CIV' ''' by default. The file name ends with index string '_1-2' indicating that it results from images 1 and 2. The file name and its status is indicated in a new figure '''civ_status'''. Press the file name to open it with uvmat, or use the browser of '''uvmat'''.