How to solve the “Merging Failed” problem when processing large aerial dataset?

[regiser]

Hi everyone, When I try to use Agisoft MetaShape 1.5.3 to process relatively large aerial dataset, at the stage of “Align Cameras”, after 75% completed,there are so many “merging failed” problems in the merging blocks step. So, at the final step, there will be many very small blocks only consist few photos(<30 Photos).To get the precise result, the program need many iterations to eliminate the small blocks. When large dataset, every iteration need very long time, so the overall processing time maybe unacceptable(>10 hours to finish the last 5%).So I want to know why this happened? And is there any solution to solve this problem.

[Alexey Pasumansky]

Hello regiser,

If you have the project saved with the matching points (intermediate product of Align Photos operation), please send it to support@agisoft.com, so that we could try to reproduce the problem on our side.

Also the complete log from the very beginning would be helpful, if you have saved it by any chance.

[regiser]

The project have so many photos, the project file size may be very large,so do you really need the photos?

[Alexey Pasumansky]

Hello regiser,

The project file in PSZ format that contains the Tie Points in the chunk's contents of the Workspace pane would be sufficient.