Now in the new release you can check the camera uncertainty results not only in the Registration and Camera Accuracy Report but also right in the application.
The camera uncertainty is a value of camera's position uncertainty. It means, that the camera should be in this ellipsoid after alignment and if you theoretically will move with the camera in this area, the reprojection error will be under certain value and you should get the same alignment results. It can help you to find places, which aren’t captured well, and you can capture additional images from these places.
You can find the Relative position uncertainty option in 1Ds view in Selected input panel for georeferenced and non-georeferenced images. This option is available only for registered images and displayed units are taken from Project coordinate system. Relative position uncertainty consists of values for uncertainty in X, Y and Z axis and from used units.
If your images are georeferenced, you can also check these values in graphical version in Map view. To view these parameters, you must have checked Camera checkbox in Map view tab/Display ribbon and also Uncertainty checkbox in this ribbon. The showed ellipses are from selected component in 1Ds view. Units in the legend are based on the selected Project coordinate system.
The uncertainty scale of the ellipse in XY axis is defined by ruler in the legend. The uncertainty in Z axis is defined by the color from white (smaller) to black (bigger) in the legend.