Optimisation of the Orientation

Optimisation is the process of updating the exterior and/or interior orientation of images, by making changes to the control points or to the camera calibration values.

The initial stored orientation can be optimised so that:

The initial stored orientation can be optimised so that:

Any wrong point marking is manually removed.
Any control point with wrong 3D position is disabled.
The camera calibration is fine-tuned to fit the specific image capture.

Since most cameras that are used do not retain a constant internal geometry, the camera optimisation can improve the accuracy of the interior and exterior orientation and its deliverables.

The orientation of an image group may take a considerable amount of time. However, the optimisation only triggers a final bundle adjustment, without recomputing the orientation from the beginning.

The optimisation of the orientation can be triggered:

The optimisation of the orientation can be triggered:

By the control points wizard.
By highlighting the oriented image group and selecting Optimise from the Imaging ribbon bar or use the context menu.

Optimisation using the control points wizard:

Optimisation using the control points wizard:

1.	After making a change in the control point wizard for an oriented image group, on the second page there is now an additional check box.
2.	Activate the Update orientation on finish option to optimise the orientation.
3.	Select Finish in the wizard to start a new processing task. The orientation is updated and optimised with the changes you made in the control point wizard.

Update orientation on finish

Finish

Optimisation of the camera parameters:

Optimisation of the camera parameters:

To fine-tune the interior orientation of the images, do the following:

To fine-tune the interior orientation of the images, do the following:

1.	Open the Settings from the Imaging ribbon bar and make the changes you want to the Camera Calibration Optimisation section.
2.	Highlight the oriented image group and select Optimise from the Imaging ribbon bar or the context menu.

Settings

Optimise