Changes between Version 34 and Version 35 of Tutorial/CorrelationImageVelocimetryOptimisation


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Timestamp:
Feb 2, 2015, 3:19:36 PM (6 years ago)
Author:
vaillant1p
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  • Tutorial/CorrelationImageVelocimetryOptimisation

    v34 v35  
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    70 From '''uvmat''' select '''[Run/PIV]''' so the GUI '''civ_input''' pops up. With the option''' [!ImportParam]''', import the parameters from the file 'Images.ref.civ/0_XML/frame_1.xml', select the mask 'mask_1.png' for '''[CIV1]''' and ''''[CIV2]''' in 'Images.ref.mask' and '''[RUN]''' the civ calculation on 'frame_1.png' only. The result should look like the reference result 'Images.ref.civ/frame_1-2.nc'. As expected from the dark spot at the vortex centre, the core is not properly resolved in civ1. The result is improved in civ2.
     70From '''uvmat''' select '''[Run/PIV]''' so the GUI '''civ_input''' pops up. With the option''' [!ImportParam]''', import the parameters from the file 'Images.ref.civ/0_XML/A_1_1.xml' and '''[RUN]''' the civ calculation. The result should look like the reference result 'Images.ref.civ/A_1_1-2.nc'. As expected from the dark spot at the vortex centre, the core is not properly resolved in civ1. The result is improved in civ2.
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    72 Let us improve again the result by a third civ iteration. This is launched in the GUI '''series''', opening  the netcdf file result of the previous Civ2 calculation instead of an image. The source image then automatically appears in the second line of the input table of '''series'''. Unselect the option '''[CIV1]''', '''[FIX1]''' and '''[PATCH1]''', and select the check box '''[CIV3]''' in the frame '''[CIV2]'''. Choose the mask 'mask_1.png' and then '''[RUN]''' the civ calculation, saving the result in a new folder 'Images.civ_1'. The final result is shown in the figure below, with a cut across the vortex core at y=500 pixel.
     72Let us improve again the result by a third civ iteration. This is launched in the GUI '''series''', opening  the netcdf file result of the previous Civ2 calculation instead of an image. The source image then automatically appears in the second line of the input table of '''series'''. Unselect the option '''[CIV1]''', '''[FIX1]''' and '''[PATCH1]''', and select the check box '''[CIV3]''' in the frame '''[CIV2]'''. Then '''[RUN]''' the civ calculation, saving the result in a new folder 'Images.civ_1'. The final result is shown in the figure below, with a cut across the vortex core at y=500 pixel.
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    7474figure**