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Messages - tkwasnitschka

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61
Feature Requests / Clusters of reconstruction in case of poor data
« on: July 20, 2012, 06:14:00 PM »
Hi Agisoft team,
Working with deep sea video footage, the vehicles often jerk to one side or imagery quality is very poor. If I load a long sequence, Photoscan will only create one cluster of aligned images and will not look beyond for other clusters of match within the chunk. That I have to do myself by copying the remaining images to a new chunk.
Since I have ground control data for most of my imagery, it would not be a problem to continue, though.

Either: provide a feature to force continuation of alignment if ground control data is available
or: provide means to automatically copy failed batches of images to a new chunk and align them, too.

Thank you so much for this great piece of software!
Tom

62
Feature Requests / Ground Control Quality check
« on: October 26, 2011, 12:30:34 PM »
I am building georeferenced models according to known camera paths on a meter scale and sometimes it is very hard to judge the fit from Ground Control Statistics alone.

Three suggestions for Ground control:
1. Could you implement an option to permanently display the originally imported GC positions even after Photo alignment? This way, it would be easier to get a gut feeling of the fit and it would allow to quickly identify the reason for outliers and remove them.
2. It would help to have highlighted selected cameras in Ground Control the way "Photos" and the workspace tab are highlighted upon selection.
3. Please keep the navigation gizmo active while the Ground Control window is open so I can examine adjustments without having to close Ground Control.

Many thanks for your great software, and especially for the latest two releases!
Tom

63
Python and Java API / Python scripting
« on: October 18, 2011, 11:23:38 AM »
Hi all!
I admit I am illiterate when it comes to scripting, let alone programming.
Could someone post a working example for a python script doing the following, so that I can run batch processing over a numer of separate files that I do not have to append before:

- Work my way through a number of psz files, in which I have already set masks and GC,
- align photos in each chunk using masks and GC,
- optimize each chunk (doable already?),
- build geometry in each chunk with settings generic, high and smooth.
At this point I guess my intervention will be necessary.
Thank you very much!
Tom

64
General / Re: different camera heights --> resulting resolution?
« on: July 12, 2011, 12:13:01 PM »
Hi all,
is it correct that in the current version 8.2.985 all loaded images are taken into account for alignment, regardless wether they are disabled? I usually disable every second image anyway, and the only difference I see in the viewport is the coloring of the cameras in different tones of blue.
Not that I mind this, I just want to clarify.
Cheers,
Tom

65
Bug Reports / Incomplete export of ground control statistics
« on: July 04, 2011, 11:03:00 AM »
Hi all,
when exporting the statistics of Ground Control I essenially get the values I stuck in, just in a slightly mingled order (Why that? Is that the order of the alignment algorithm?). It does NOT export the estimated coordinates or the errors. The only way to get the estimated coordinates is to copypaste each single line to excel... cumbersome. Could you please provide an output of these statistics (maybe just append the existing outputs) since this data is not saved otherwise?

My motivation is to visualize the errors in 3DSmax.
Thanks a lot!
Tom

66
Hi,
I am just about to purchase the pro version (which is GREAT!!!)

Some questions so I understand the camera import right:

1. I have footage and motion data from a deep sea diving robot:
x, y (lat/lon, UTM); z (m); pitch, heading, roll (°).
X and y have large uncertainties, z is better, the rotation data is of high accuracy.
There is no other data to correct for drift in the reconstruction. There is no intrinsic information available (HD footage), but in my tests photoscan outperformed all other products in terms of drift. Can I use this motion data to correct drift during reconstruction? Will the conversion script mentioned above help?

2. Will this data stabilize the drift within the model (=bend it in shape) or merely geographically align it rigidly to achieve a best fit to the camera positions? I would not want to produce countless little individually referenced chunks to get the geometry right...

3. Not having seen the camera export: Is there a way to get a camera position output in a string like t,x,y,z,h,p,r? I have to cross correlate the navigation data first to an initial solution to eliminate a nasty time offset...

Many thanks so far!
Tom

(...Sample footage on photosynth account "kwasnitschka"...)

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