alignment in forest area

Trying process images of forest area but alignment does not register images with pure forest (so no roads or other easier objects). Do you have any guidance/hints for these areas. We are be able to get external orientation in omega, phi, kappa (prior info) but these are not alternative in CR.

Ismo

Hi Ismo Hippi

Can send me 20-30 img so can take a look on good settings for alignment ?
send it to milos.lukac@capturingreality.com

For the prior camera orientation, at least for now its not supported only their position. ( as a GPS info )