Having used Tie points config option in v.1.1 for some while I am stil having some problems with understanding this feature. In many cases leaving the default setting at 1000 causes too sparse "sparse point cloud" leading in next step to some inaccuracies in generating dense point cloud espacially in too thin parts of the sparse point cloud. These problems are mostly solvable by disabling tie point limit feature (setting limit at 0). Is there any additional benefit by the implementation of tie point limit beside speeding up the process (I think in one of the posts it is stated that tie point config automatically filters out "badly" projected points but is this objective not achievable in better or more controlled way by the application of traditional reprojection error decreasment?) . Is there any other desirable tie point limit setting beside 1000 that would turn out as a good presupposition for dense point cloud generation.
And what is exactly the relation of tie points to key points. If sparse point cloud is determined solely by tie point config why to bother any more about key point config?
I am probably missing some substantial knowledge on this topic but explanation in user manual especially on tie point is too theoretical for me