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Messages - vladal

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1
General / Re: Micasense Rededge-P Dual (Red+Blue) does not show all bands
« on: September 28, 2023, 12:00:37 PM »
Hi Alexey,

I tried adding all the data at once, as well as per sensor.  In both cases the results were identical.
I did not try to add per-band, seemed counter-intuitive considering the results with the other approaches, and also time-consuming - the way the files are saved on the SD card is similar to other models of Micasense RedEdge.


I could share a sample of the data, I am unaware of any public datasets with this setup. Please let me know how and what

2
General / Micasense Rededge-P Dual (Red+Blue) does not show all bands
« on: September 26, 2023, 04:33:03 PM »
Hi,

I have a Rededge-P Dual (Red+Blue) 10-band dataset consisting of ~35K files.
In Agisoft Metashape Pro 2.0.2, when I load the images and select the multiband option, I'm getting only 6 bands instead of 11 (see attached screenshot).

This is a major issue, as it is impossible nor to calibrate reflectance, neither to export multi-band orthomosaics.

I am looking for ideas to overcome this.



3
General / Orthomosaic file not saved
« on: July 10, 2023, 03:52:06 PM »
Hello,
I am currently processing a project of UAV thermal imagery. All processing steps were completed successfully, however Export Orthomosaic does not output the file in the specified path (without any error messages, in the console this step had exit code 1).

I have tried different filenames and paths, but same result. Other products like DEM were exported without problem.

I am using Agisoft Metashape Pro 1.8.4

What can be done?

4
General / Re: P4 Multispectral mosaic will not export
« on: April 30, 2023, 09:45:15 AM »
Ok, interesting

I tried to create a lowres mosaic following your suggestion, and so I saved a copy of the project and re-did Dense Cloud, DEM in Low quality. Created and exported an Orthomosaic and voila - I have values and an image and the histogram makes sense.

Same settings apart from the quality.
Attached below are screenshots of the "lowres" product (orthomosaic is the same size though  ;D)

5
General / Re: P4 Multispectral mosaic will not export
« on: April 30, 2023, 09:31:46 AM »
Hello vladal,

If you open the same exported orthomosaic in QGIS - does it also show only three channels? If so, then please share the Export Orthomosaic dialog with the parameters used and also provide the related log from the Console pane. Maybe you can also share the orthomosaic itself, exported in low resolution (you can send it to support@agisoft.com, if the data is sensible).

Hi Alexey,
Attached below are screenshots of the Export Orthomosaic dialog and the console output.

In QGIS I have 5 bands to choose from, by default bands 1-3 are selected for RGB.


6
General / Re: P4 Multispectral mosaic will not export
« on: April 27, 2023, 09:17:56 AM »
Hello vladal,

Can you please specify, what value you are using in Raster Transform section of the Export Orthomosaic dialog?

Additionally please provide the screenshots from Transform and Palette tab of Raster Calculator dialog.
Hi Alexey,
Please see one post above this one

7
General / Re: P4 Multispectral mosaic will not export
« on: April 19, 2023, 12:16:58 PM »
Hi Alexey,
The setting of Raster Transform in Export Orthomosaic is set to Index Value.
Attached below are the screenshots of the Tranform and Palette tabs.

8
General / P4 Multispectral mosaic will not export
« on: April 17, 2023, 05:12:11 PM »
Hi,
I have a P4 Multispectral orthomosaic. Within Agisoft it shows just fine (albeit somewhat dark). However when I attempt to export it, I receive a black shape with NaN values (attached: screenshots).
I tried with and without Raster Transform (Bn/32768), without it the image is very dark (albeit not opaquely black) and of course the values are not in reflectance.

I've been going in circles around this problem for the last 48 hours, re-did the project several times but to no avail.

9
General / Re: Cannot export orthomosaic from DJI P4
« on: March 14, 2023, 10:24:55 AM »
Hi Alexey
I re-did the project from the start yesterday and I got the orthomosaic right this time.
I think the problem was that initially in Camera Calibration I did not select all of the fixed parameters (b1, b2, k4 were not marked).

I did want to make sure, is it normal that in Calibrate Reflectance when I select "Sun Sensor" and press OK, Metashape does a calculation and the window closes, but the next time I open it Sun Sensor is not selected?

10
General / Re: Cannot export orthomosaic from DJI P4
« on: March 12, 2023, 05:42:36 PM »
Keith, thank you for your reply.

I tried your approach with tiles and got several files, but they were also blank and black.

I did overcome the error when bands where divided by 65535 (Big TIFF flag in the Export Orthomosaic settings), however I still got a blank black TIFF that looks the same in QGIS or ArcPRO, and makes ENVI crash when I tried to open it. Either way, it seems that by the reflectance values - 32768 is the value to divide by.

Also, I've noticed that the Sun Sensor setting does not persist - I mark it and press "OK", but the next time I open it, it is unmarked.

11
General / Cannot export orthomosaic from DJI P4
« on: March 08, 2023, 09:52:42 AM »
I have a set of images from DJI Phantom P4 multispectral camera. It did well in alignment, dense cloud, DEM and orthomosaic generation. However, I am having trouble with orthomosaic export (DEM exported fine).
Particularly, I'm getting a .tif orthomosaic with values, but the histogram is blank and the image itself is black.

I tried 3 settings in Raster Calculator - (a) unmodified, (b) divided by 32768 - same result, (c) divided by 65535 - export error (could not create file).
In Calibrate Reflectance I marked 'Sun Sensor'.

Agisoft Metashape version is 1.8.4


Am I missing something?

12
Bug Reports / Re: Autel EVo II thermal mosaic issue
« on: July 24, 2022, 10:39:48 AM »
Hello vladal,

The issue which caused Assertion 239012012300097 (related to unsupported data format for GPU-based processing), seems to have been fixed in the version 1.7.4.

Can you please check, if you are no longer observing any similar problems in the latest release version: 1.8.3.

Hello Alexey,
I can confirm that the issue does not appear on version 1.8.3, I have successfully built an orthomosaic.

Thank you for you help!

13
Bug Reports / Re: Autel EVo II thermal mosaic issue
« on: July 10, 2022, 03:22:23 PM »
Hello vladal,

Can you please specify Metashape version used and also provide the part of the processing log from the Console pane related to failed operation Build depth maps or Build dense cloud.

Hi Alexey,
Metashape version is 1.71 (build 11797)

Here is the part from the log with the failure of Build dense cloud:

2022-07-10 15:22:43 BuildDenseCloud: quality = High, depth filtering = Mild, PM version, point colors = 0
2022-07-10 15:22:43 Generating depth maps...
2022-07-10 15:22:43 Preparing 748 cameras info...
2022-07-10 15:22:43 cameras data loaded in 0.147 s
2022-07-10 15:22:43 cameras graph built in 0.252 s
2022-07-10 15:22:43 filtering neighbors with too low common points, threshold=50...
2022-07-10 15:22:43 avg neighbors before filtering: 46.5455 (41% filtered out)
2022-07-10 15:22:43 limiting neighbors to 40 best...
2022-07-10 15:22:43 avg neighbors before limiting: 27.6096 (0% limited out)
2022-07-10 15:22:43 neighbors number min/1%/10%/median/90%/99%/max: 4, 11, 18, median=29, 34, 37, 37
2022-07-10 15:22:43 cameras info prepared in 0.402 s
2022-07-10 15:22:43 saved cameras info in 0.014
2022-07-10 15:22:43 Partitioning 748 cameras...
2022-07-10 15:22:43 number of mini clusters: 58
2022-07-10 15:22:43 20 groups: avg_ref=37.4 avg_neighb=95.2 total_io=355%
2022-07-10 15:22:43 max_ref=39 max_neighb=135 max_total=173
2022-07-10 15:22:43 cameras partitioned in 0.004 s
2022-07-10 15:22:43 saved depth map partition in 0.006 sec
2022-07-10 15:22:43 loaded cameras info in 0.03
2022-07-10 15:22:43 loaded depth map partition in 0 sec
2022-07-10 15:22:43 already partitioned (38<=50 ref cameras, 61<=200 neighb cameras)
2022-07-10 15:22:43 group 1/1: preparing 99 cameras images...
2022-07-10 15:22:43 point cloud loaded in 0.002 s
2022-07-10 15:22:43 Found 1 GPUs in 0 sec (CUDA: 0 sec, OpenCL: 0 sec)
2022-07-10 15:22:43 Using device: Quadro RTX 4000, 36 compute units, free memory: 6675/8192 MB, compute capability 7.5
2022-07-10 15:22:43   driver/runtime CUDA: 11020/8000
2022-07-10 15:22:43   max work group size 1024
2022-07-10 15:22:43   max work item sizes [1024, 1024, 64]
2022-07-10 15:22:44 Finished processing in 0.982 sec (exit code 0)
2022-07-10 15:22:44 Error: Assertion 239012012300097 failed at line 891!
>>>

14
Bug Reports / [SOLVED] Autel EVO II thermal mosaic issue
« on: July 07, 2022, 02:56:22 PM »
Hello,
I am trying to create a mosaic from a thermal dataset captured with Autel EVO II, using the .tiff files (it also has .jpg, but these only provide a heatmap as far as I understand).
Image alignment went just fine, but as I tried to create a dense cloud, I've received an error I've never seen before (attached screenshot).


I suspect that it has to do with camera calibration, but I've no idea what parameters to set and the specs on Autel's website are not helpful.

Help will be appreciated, I out of ideas.

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