Unable to reproduce behavior using the python interface

[sarnold]

Hi,
using the GUI I can set some camera parameters fixed and let others optimize for each camera.
The camera xml output lists the initial calibration, the adjusted calibration and a calibration block for each camera with the parameters that have been optimized for each camera.
The same output I was expecting after calling matchPhotos and alignCameras using the python interface.
In order to optimize the right parameters the following has been set:
sensor.fixed_params = ["F", "Cx", "Cy"]
sensor.photo_params = ["P1", "P2", "K1", "K2", "K3"]
and an initial calibration has been set on sensor.user_calib.

The camera xml however shows no optimized camera calibration parameters, only the initial settings.
What is missing here compared to the behavior of calling Align Photos in the GUI?

[Alexey Pasumansky]

Hello sarnold,

Can you please specify, which parameters you are using for matchPhotos,  alignCameras and optimizeCameras commands?

[sarnold]

Hello Alexey,
those are the parameters:

Code: [Select]

matchPhotos(downscale=1, generic_preselection=True, reference_preselection=True,
                    reference_preselection_mode=Metashape.ReferencePreselectionEstimated, filter_mask=False,
                    mask_tiepoints=True, keypoint_limit=40000, tiepoint_limit=2000,
                    keep_keypoints=True, guided_matching=False, reset_matches=False, subdivide_task=True, workitem_size_cameras=20,
                    workitem_size_pairs=80, max_workgroup_size=100, progress=progress_print) 

Code: [Select]

alignCameras(min_image=2, adaptive_fitting=False, reset_alignment=True, subdivide_task=True, progress=progress_print)

Code: [Select]

optimizeCameras(fit_f=False, fit_cx=False, fit_cy=False)
Calling optimizeCameras after alignCameras is an optional step right? I assume that the camera calibration parameters are already optimized during the alignCameras step.

[sarnold]

It seems that the parameters are optimized as intended, they are just not saved into the camera xml output.
Interestingly after calling optimizeCameras with fit_corrections=True the parameters are present in the xml as expected.