tie points and solution points

Question

1.What is the difference between tie points and solution points?

2. If I want to edit tie points, can I edit them at solution points without changing the tie points themselves? Will this have an effect on the residuals when computing block adjustment?

CAP · Accepted Answer

Hi Jake,

Good day. Tie points are used to build a relation between overlapping images by connecting similar features automatically (image correlation) or manually (Tie Point Editor). Tie points are used in block adjustment to do what we call a relative orientation. So tie points can be edited to improve adjustment accuracy, not solution points. The tie point location on a map (including residuals) are represented by solution points.