Hi everyone !
I have asked some informations about this topic somewhere else, but without any answer I propose a new topic here.
I would like to use more often the "Align Chunks" tool but for the moment, the lack of alignment detailed errors restrict its possibilities.
My objectives:
- Firstly, I have created a global 3D model of an area (2000m2) which is georeferenced on about 10 GCPs (GNSS points). => subcentimeter accuracy
- Then, I have created small chunks (several m2) on parts of the same area (Holes dug after the creation of the global model.
- Those small chunks don't include GCPs used at the first step. But they present enough covering area with the main model (around holes)
- I have used "Align Chunks" tool to georeference my holes in order to make mesurements.
=> The big problem is that I don't have any alignment errors at the end of the chunks alignement. So I cannot have any idea on the accuracy of the alignement and then of the georeferencement of my holes.
=> The only thing I found is a value in the console which talk about "average projections" (4.31855 in my exampl). What does that mean ? pixels ? but which pixels: main model of aligned small chunks ?
I would like to know if it would be possible to have more. This is the biggest "black box" remaining in all the calculation process.
Thanks for your anwers
[...]
2017-03-06 11:58:33 photo 166: 19132 points
2017-03-06 11:58:34 photo 167: 20715 points
2017-03-06 11:58:34 points detected in 84.7 sec
2017-03-06 11:58:34 Matching points...
2017-03-06 12:08:04 103571 matches found in 569.623 sec
2017-03-06 12:08:04 matches combined in 0.026 sec
2017-03-06 12:08:04 setting point indices... 23871 done in 0.022 sec
2017-03-06 12:08:04 generated 23871 tie points, 4.31855 average projections
2017-03-06 12:08:04 removed 37096 multiple indices
2017-03-06 12:08:04 removed 11 tracks
2017-03-06 12:08:04 finished matching in 654.392 sec
2017-03-06 12:08:04 adding 953 points, 31 far (10 threshold), 18 inaccurate, 99 invisible, 279 weak
2017-03-06 12:08:04 adding 696 points, 14 far (10 threshold), 0 inaccurate, 14 invisible, 34 weak
2017-03-06 12:08:04 Aligning groups by 44 points
2017-03-06 12:08:04 iteration 0: 16 points, 0.0178772 error
2017-03-06 12:08:04 iteration 1: 16 points, 0.0178772 error
2017-03-06 12:08:04 iteration 2: 16 points, 0.0178772 error
2017-03-06 12:08:04 iteration 3: 16 points, 0.0178772 error
2017-03-06 12:08:04 iteration 4: 16 points, 0.0178772 error
2017-03-06 12:08:04 Finished processing in 654.48 sec (exit code 1)
2017-03-06 12:09:52 Generating report...
2017-03-06 12:10:11 Analyzing chunk...
2017-03-06 12:10:11 Finished processing in 20.047 sec (exit code 1)
2017-03-06 12:12:10 Generating report...
2017-03-06 12:12:14 Analyzing chunk...
2017-03-06 12:12:14 Finished processing in 6.955 sec (exit code 1)
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