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Messages - JMR

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46
Bug Reports / ... error reading pixel
« on: January 13, 2023, 04:06:54 PM »
What can I do?

[...]
2023-01-13 13:55:52   2.83981/4~71% avg groups per camera
2023-01-13 13:55:52   146.25/206~70% avg cameras per group
2023-01-13 13:55:52   0% leaves avg camera intersects in group
2023-01-13 13:55:52   1% big leaves avg camera intersects in group
2023-01-13 13:55:52   29% of leaves are big
2023-01-13 13:55:52   100% of voxels in group are from big leaves
2023-01-13 13:55:52 saved 4 groups (0.03125 KB) for 344 leaves
2023-01-13 13:55:52 saved 2.28516 KB of affected cameras and 0.804688 KB of exclusive cameras for all leaves
2023-01-13 13:55:52 Scheduling octree 344 leaves hist initing in 4 groups (86 avg leaves per group)
2023-01-13 13:55:52 Initing hists in leaves group #1/4: [0; 60)...
2023-01-13 13:56:02 total cubes: 105221949 cubes, 1605.56 MB, 163.966 MB/s
2023-01-13 13:56:02 Data: 2408.34 MB hists + 0 MB codes, 117.297 MB pyramid
2023-01-13 13:56:02 Found 2 GPUs in 0 sec (CUDA: 0 sec, OpenCL: 0 sec)
2023-01-13 13:56:03 [GPU 1] Using device: NVIDIA GeForce GTX 1070 Ti, 19 compute units, free memory: 7104/8191 MB, compute capability 6.1
2023-01-13 13:56:03   driver/runtime CUDA: 12000/10010
2023-01-13 13:56:03   max work group size 1024
2023-01-13 13:56:03   max work item sizes [1024, 1024, 64]
2023-01-13 13:56:03 [GPU 2] Using device: NVIDIA GeForce GTX 1070 Ti, 19 compute units, free memory: 7197/8191 MB, compute capability 6.1
2023-01-13 13:56:03   driver/runtime CUDA: 12000/10010
2023-01-13 13:56:03   max work group size 1024
2023-01-13 13:56:03   max work item sizes [1024, 1024, 64]
2023-01-13 13:56:08 openexr error: Error reading pixel data from image file "openexr". Data decompression (zlib) failed.
2023-01-13 13:56:08 openexr error: Error reading pixel data from image file "openexr". Data decompression (zlib) failed.
2023-01-13 13:56:08 openexr error: Error reading pixel data from image file "openexr". Data decompression (zlib) failed.
2023-01-13 13:56:09 openexr error: Error reading pixel data from image file "openexr". Data decompression (zlib) failed.
2023-01-13 13:56:09 openexr error: Error reading pixel data from image file "openexr". Data decompression (zlib) failed.
2023-01-13 13:56:09 openexr error: Error reading pixel data from image file "openexr". Data decompression (zlib) failed.

2023-01-13 13:56:09 [GPU 1] Exception
2023-01-13 13:56:09 [GPU 2] Exception
2023-01-13 13:56:09 Peak memory used: 8.44 GB at 2023-01-13 13:56:06
2023-01-13 13:56:09 deleting all temporary files...
2023-01-13 13:56:10 done in 0.734 s
2023-01-13 13:56:10 Finished processing in 2280.18 sec (exit code 0)
2023-01-13 13:56:10 Error: Can't decompress depth

47
General / Re: Weird decimation
« on: January 13, 2023, 03:00:56 PM »
Model   
Faces   452,844
Vertices   229,662
Vertex colors   3 bands, uint8
Depth maps generation parameters   
Quality   Medium
Filtering mode   Mild
Max neighbors   16
Processing time   7 minutes 24 seconds
Reconstruction parameters   
Surface type   Arbitrary
Source data   Depth maps
Interpolation   Enabled
Strict volumetric masks   No
Processing time   9 minutes 9 seconds
Memory usage   8.29 GB
Date created   2023:01:13 10:01:27
Software version   2.0.0.15597
File size   10.41 MB

48
General / Weird decimation
« on: January 13, 2023, 01:27:37 PM »
I've recently observed that during decimation metashape divides the whole mesh into regions and it looks it decimates diferently. It gives the impression that it sets triangle count per cluster as target rather than a global volumetric parameter for cutting the iterative reduction process, so it leads to very noticeable diferences in mesh resolution thus exactness between clusters.
I think there's room for improvement here.
Regards

49
General / Re: Dense Cloud to PTS (or e57, las etc) to RCS Problems
« on: January 09, 2023, 01:55:29 AM »
Quote
it shows just a long straight line of points
Very likely you are exporting geographic coordinates: lat/lon/elev and they are read in Recap as if they were X/Y/Z.
If you think a bit, you will surely understand why all your points look like a single line, or better, like a tall stack of points. They vary some metres in Z and barely move sub-microns in X/Y
Regards

José Martínez
Agisoft training

50
Export the cloud with the offset (you can enter shift during export) and then import again.
Cheers,

José Martínez

Geobit & Accupixel
Agisoft endorsed training providers.

51
General / Re: How to solve strange images aligment
« on: October 23, 2022, 11:08:12 AM »
Precalibrate your camera could be the best solution.

52
General / Re: Agisoft Metashape 2.0.0 pre-release
« on: October 16, 2022, 04:21:27 PM »
It is rather difficult to understand for me why steps towards the integration of lidar/laser scans and photogrammetry requires the removal of  the terms "laser scans", or "LiDAR" from all menus. Apparently import scans sounds too much explicit or specific, so it is better to call them depth images.
Why not "structured laser scans" versus "unstructured point cloud? Also why drag and drop scans over the chunk is still impossible?
Thanks for the update!!!! I'm eager to test it further.

Best for good russians.

53
General / Re: How to display 3D side by side in fullscreen ?
« on: October 14, 2022, 12:38:28 AM »
Are you trying to adapt some stereoscope? I do not recommend it: I did it some time ago and the stereo view was deformed and uncomfortable... I spent many days working this way and finally gave up. Later I purchased a true stereoscpic diplay based on dual monitors and a splitting mirror... and OMG, this is glory! I love it. I'm an absolute fan of stereo plotting it feels like diving into the reality. Seriously, forget split view. Aspect ratio gets wrong, Agisoft has done something wrong with the split view and I have already told them but they don't seem to care enough about old school stereo photogrammetrists. Get a stereo ready card and just let me know if you want a proper stereo display.
Cheers

54
Feature Requests / back face color tint
« on: October 13, 2022, 02:45:50 PM »
Dear Agisoft devs.
I know there is an option for back face culling that works during orthomosaic creation hiding triangles with normals pointing towards the projection plane. It works well in some cases, but not-so-well for complex geometry where it often creates confusion when triangles in the hidden areas have normals towards the viewer.
I would like to have also an option for using a distinctive tint overlay for inverted triangles as alternative to culling.

The mesh is rendered darker for inverted faces, but it is not so much different to the positive face when texture or colour is also dark. It would be nice to have the color tint option also in the model viewport when looking at textured or shaded mesh.

Best regards.
José Martínez


55
It is already available. Select the same three markers used for drawing plane definition also for building the planar orthomosaic... or am I missing something?

56
General / Re: Alignment Error on aerial photogrammetry
« on: September 29, 2022, 02:43:19 AM »
... and i can't get tie point information to knwo wich photo generate this specific tie point...
If you can select a tie point you can filter photos pane "by points". This will tell you the photos it comes from.

57
Bug Reports / ortho view malfunctioning
« on: August 26, 2022, 08:05:18 PM »
Context: 3D model of a building mixing aerial and terrestrial photos. the project contains mesh, one projected DEM and several elevation façade planar orthomosaics.

My ortho view gets frozen when an orthomosaic is shown and I can neither drag (pan) nor draw. Zoom with mouse wheel also impossible, however magnification button works normally
If ortho view contains DEM, the odd behavior stops, and I can draw, pan, zoom etc.
If I switch to orthomosaic the problem comes back
But the weirdest finding is: if I de-default the existing DEM, then orthomosaic turns back to normal behavior, so it seems to be something related to DEM (projection) coexisting with orthomosaics (planar):

All with latest release.
Best regartds.

58
General / Re: creating new mesh from dense cloud without overwriting
« on: July 29, 2022, 06:02:07 PM »
Right click on the mesh object and uncheck "set as default mesh"... same applies for dense clouds, orthomosaics, etc.
Regards

José
GEOBIT & ACCUPIXEL
Agisoft endorsed training

59
General / Re: Waving a white flag
« on: June 09, 2022, 09:19:57 PM »
Quote
Not sure what you mean about the names not being important, please clarify. I need to match the names to update the coordinates from the GCP file. (That's a minor issue, as you can edit the GCP csv to match the labels, i.e. "point 1".)
In the import reference dialogue there is a checkbox that "ignore labels", try it and you will understand. Metashape manages to match markers and ground points on its own (obviously it can fail if points distribution is too much regular making several matches plausible)
Also you may need to see if by enabling "refine markers" under tools menu, you get the boost you want for your workflow. (also needs some user care, that is why it is not enabled by default)
Best regards,

José Martínez
Geobit & Accupixel
Metashape traning

60
General / Re: Waving a white flag
« on: June 08, 2022, 09:38:55 PM »
I'm not sure I'm understanding you well. I guess you are not fully understanding the different methods to add a control point to the chunk. Place marker vs add marker. Also I wonder if you know that naming markers the same as the gcps in the file is not as critical as it may appear.
Of course there is no need for coding for turning white flags into green, and even if it was doable, I guess it would be hardly acceptable. Green flags are marker projections placed by the user on a given pixel location very consciously, nothing to be automated.
Blue flags are projections placed by the software based on previous user input that have same value for calculations as green ones, (all blue flags need to be inspected by the user if only one is found to be off its expected location in some instance), and white flags are projections suggested by the software by projecting a ray from the 3d point location to the camera center, they play no role in calculations.

José Martínez
Geobit & Accupixel
Metashape traning

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