Changes between Version 49 and Version 50 of Tutorial/GeometricCalibration

Timestamp:

Mar 23, 2015, 4:36:56 PM (10 years ago)

Author:

vaillant1p

Comment:

--

Tutorial/GeometricCalibration

@@ -76 +76 @@
 '''Note:''' if the serie is missing some images (ie the increment from one image to another is not steady), '''uvmat''' will not allow you to use the arrow '''[->]'''  to move from an image to another if the increment is set. To avoid this  delete the number in '''[increment]''', you will then be able to go from an  image to another.
 
-When all the grids are selected in '''[Point Lists]''', select '''[APPLY]'''. The calibration on every image is now made and the values of the intrinsic parameters are reevaluated according to the different data determined by every calibration. Note that the more images used for the calibration, the more precise the intrinsic parameters will be.
+When all the grids are selected in '''[Point Lists]''', select '''[APPLY]'''. The intrinsic parameters are then reevaluated according to the set of points in different planes, which provides a better estimate than with a single plane. The extrinsic parameters are still determined by the points displayed in the table '''[!!ListCoord]'''.
 
 For the next calibration, to avoid any change on the intrinsic parameters, in''' 'geometry_calib' '''select the option '''3D_extrinsic''' in '''[calib_type]'''. It applies a 3D projection and quadratic correction according to the already determined intrinsic parameters.
@@ -87 +87 @@
 Select the '''[Action]''' function '''merge_proj''' and put the '''[Field Transform]''' as '''phys'''. Select the check box '''[Projection Object]''', the plane created earlier should appear below the check box. '''[RUN]''' the calculation and open the result using '''[STATUS]'''. You can see that the three images are merged in the same plane.
 
-
 == '''Setting laser slices: ''' ==