In new version, there are some new interesting features regarding variance information:

1. in point cloud model display, there is an option to show Point cloud variance. In model view, the point cloud is colored according to each tie point variance. How is this variance calculated and what does it represent?

2. in Reference pane, there is a new button to View variance of camera positions and orientations. Same question as 1. how are these variances calculated and what do they represent?

Some more insight in these features would be greatly appreciated,