fluidimage.calibration.calib_direct#
Direct calibration (fluidimage.calibration.calib_direct
)#
- class fluidimage.calibration.calib_direct.CalibDirect(glob_str_xml=None, shape_img=(None, None), path_file=None)[source]#
Bases:
object
Class for direct Calibration This calibration determine the equations of optical paths for “each” pixels
- Parameters:
- glob_str_xml: None
Path for grid points extracted from calibration images This files are given by UVMAT. example: ‘Images/img*.xml’
- nb_pixels: (None, None)
Number of pixels in the images
- pth_file: None
Path of calibration file
- compute_interpolents(interpolator=<class 'scipy.interpolate.interpnd.LinearNDInterpolator'>)[source]#
Compute interpolents
Create an object Interpolent (self.interp_levels) containing interpolents to switch from indices of pixels to physical coordinates.
indices_pixel2xphys
indices_pixel2yphys
phys2index_x_pixel
phys2index_y_pixel
zphys
There are as many interpolents of each sort as numbers of planes (z values).
- compute_interpolents_pixel2line(nb_lines_x, nb_lines_y, test=False)[source]#
Compute interpolents for parameters for each optical path.
The number of optical paths is given by nb_lines_x * nb_lines_y.
Optical paths are defined with a point x0, y0, z0 and a vector dx, dy, dz.
- pixel2line(indx, indy)[source]#
Compute parameters of the optical path for a pixel
An optical path is defined with a point x0, y0, z0 and a vector dx, dy, dz.
- intersect_with_plane(indx, indy, a, b, c, d)[source]#
Find intersection with the line associated to the pixel indx, indy and a plane defined by ax + by + cz + d = 0
- apply_calib(indx, indy, dx, dy, a, b, c, d)[source]#
Gives the projection of the real displacement projected on each camera plane and then projected on the laser plane
- class fluidimage.calibration.calib_direct.DirectStereoReconstruction(path_file0, path_file1)[source]#
Bases:
object
Class to get stereo reconstruction with direct Calibration This calibration determine the equations of optical paths for “each” pixels
- Parameters:
- path_file0:
Path of the file of the first camera
- path_file1:
Path of the file of the second camera
- project2cam(indx0, indy0, dx0, dy0, indx1, indy1, dx1, dy1, a, b, c, d, check=False)[source]#
Project displacements of each cameras dx0, dy0, dx1 and dy1 in their respective planes.
- interp_on_common_grid(X0, X1, d0cam, d1cam, grid_x, grid_y)[source]#
Interpolate displacements of the 2 cameras d0cam, d1cam on the common grid grid_x, grid_y
- reconstruction(X0, X1, d0cam, d1cam, a, b, c, d, grid_x, grid_y, check=False)[source]#
Reconstruction of the 3 components of the velocity in the plane defined by a, b, c, d on the grid defined by grid_x, grid_y from the displacements of the 2 cameras d0cam, d1cam in their respective planes d0cam, d1cam
Functions
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Get grid points extracted from calibration images |
Classes
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Class for direct Calibration This calibration determine the equations of optical paths for "each" pixels |
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Class to get stereo reconstruction with direct Calibration This calibration determine the equations of optical paths for "each" pixels |
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