Topics

1

General / Double Sony ILX-LR1

« on: February 11, 2025, 12:47:57 PM »

Hi,
I am planning to use two Sony ILX-LR1 cameras equipped with Zeiss Loxia 85mm lens in simultenious triggering mode. The cameras will be rigidly mounted one in front of the other and leaned from the vertical axis for 10 deg left and right. The planned overlap between cameras will be about 10%. Is it an acceptable way of widening the field of view? In case I can use it in such a way my field of view would be 44 deg instead of 24 that has a single camera, is this OK?
Best regards,
Darko Car

2

General / Orthomosaic missalignement

« on: November 21, 2024, 04:52:32 PM »

Hi,

I have a serious problem with the huge job that consists of 50.000 61Mpix photos. Alignment has been done with the Lowest setting and only 4000 Key and Tie points. Since I had a problem with my GNSS for that procedure I've used 150 CP's. It took 3 days to finish it resulting in 10.000.000 points in sparse cloud which was managable. The problem appeared in Orthomosaic with some misaligned lines on the roads that I couldn't patch.
Is there some simple procedure to align those unpatchable parts?

Best regards,
Darko 

3

Agisoft Viewer / Snaping tools

« on: September 13, 2024, 12:35:41 PM »

Hello,
Is there a function that would allow us to continue the old polyline or snap to point, endpoint, or any vertex?

4

Agisoft Viewer / NEW PRODUCT

« on: June 13, 2024, 04:29:08 PM »

Dear Alexey,

It is a shame to have such a fine Viewer and not to add more possibilities.  Why don't you make some new product like Agisoft 3D Editor for 3D model vectorization with better CAD functions and sell it separately? I know that there is a lot of functionality in Metashape but Viewer works so neat and fast that it would be much better for drafting and editing of vectors in such an environment.
Have you ever thought about that?

Best regrads,
Darko

5

Agisoft Viewer / Cesium Tiles and ContextCapture 3MX in Viewer

« on: May 29, 2024, 12:58:39 PM »

Hi,
Cesium tiles created by the Viewer or Metashape are fine but the problem is Cesium created by ContextCapture. Is there any suggestion or way to make them work better?
Honestly, I need the conversion from ContextCapture mesh model (3mx or Cesium Tiles - better 3Mx) to TLS. When I try to load 3MX into the Agi Viewer only the first tile is loaded so I cannot make the conversion.

6

Agisoft Viewer / Agisoft Viewer

« on: April 16, 2023, 08:10:25 PM »

Dear friends,
It would be nice to have the ability to rotate the view while in drawing mode. Something like Ctrl  + Pick for view rotation.

Best regards,
Darko

7

Agisoft Viewer / Navigation in Viewer

« on: April 02, 2023, 01:09:32 AM »

Is it possible to rotate the viewpoint while in the drawing mode in the Viever program?

8

Agisoft Viewer / Viewer vector layer Export

« on: April 02, 2023, 01:06:24 AM »

Hi, how can I export vectors from viewer to DXF?

9

General / Multi Camera Aligment

« on: March 11, 2022, 04:33:26 PM »

Hi Guys,
I have the multicam rig with two same cameras (A6000+25mm). The master is Nadir while the Slave is 6cm behind and 2cm lower from the master position and aiming right 20deg and  20deg front from the nadir direction. My GNSS antenna was 1.04m above, 0.85m behind and 0.88m to the left from the master camera center. So my GNSS offset was X=-0.88, Y=-0.85 and Z=+1.04 from the master camera while the slave offset was X=0, Y=-0.06, Z=-0.02. Is it so?

I have tried the aligment and the result was with the errors of aprox 3m. Than I have used 2 chunks, first with Nadir camera and offsets for Master, reuslting in the precision measured in mm. The same I got for the second chunck for the oblique camera and offset recalculated to the center of Slave, X=-0.88, Y=-0.79 and Z=+1.06. Perfect aligment with separate chunks and chatastrofic when working with multicam.

Where is the mistake?

10

General / Rigid Multi Camera Workflow

« on: August 03, 2021, 01:12:17 PM »

Hello,

Recently we have bought FOXTECH 3DM V3 Oblique Camera. That is the rig that consists of five cameras. One nadir and 4 oblique at 45 degrees. The nadir camera has 25mm lens while oblique cameras have 35mm lens. The rig is so small that the position shift for each camera is negligible. All the cameras are triggered at the same time and the photos have the same name. Since each has it's own SD card there is no confusion and it's been organized on my HD in 5 separate folders with the same name for each photo group that's been taken from the same position. My drone is equipped with the PPK GNSS so I have the position for each group of 5 photos with the same name but different folder.

What should I do next, how to load those photos with the same names? How to align it? Can someone give me the idea what's the workflow for such a system, please.

Best regards,
Darko

11

General / POWERTOWER reconstruction after Detect POWERLINES

« on: February 17, 2021, 07:43:53 PM »

  . GREAT FEATURE. That feature can truly replace powerlines lidear scan. Much better since the result is pure 3D vector. The next problem is the power tower that is way too hollow for the proper 3d reconstruction. I have tried to get the dense point cloud from the really dense aero set of photos but the results were very poor dense cloud. No way to draw that tower from that data. I have tried to compare the point cloud taken by lidar scan and it was much denser. The photos were taken with 2cm ground resolution with the 85% overlap and the dense cloud was done by the ULTRA HIGH setup and disabled depth filtering.
Any idea ??

12

Feature Requests / Croatian datum HVRS71

« on: October 29, 2020, 10:46:56 PM »

Can you, please, add the Croatian datum HVRS71?
Best,
Darko

13

General / Town 3D Model

« on: September 18, 2020, 11:09:53 AM »

Hi,

I am trying to make the best possible town 3D model in TLS format. So far I had a nice result with Sony 16mm lens (A6000) and about 80% overlap in both directions. The ground resolution was 5 cm and photos  taken from nadir. The problem I have is that I am not allowed to fly on such high altitude any more because of the new regulations and since then I never succeeded to get so nice model with good facades.

I have tried to combine the nadir photos with leaned, side taken ones, but the results were never that good.

Does anyone have a suggestion, regarding photo sessions as well as processing part, how to get the best possible model with sharp edges and good facades?

Best,

14

General / LIDAR Point Cloud Mesh

« on: September 01, 2020, 11:17:57 AM »

Hi,

As I see there is some problem with the Mesh created from the Lidar Point Cloud. I have tried to make it from the original photo dense point cloud with very nice results. Since I had a dense Lidar scan I assumed that this should give better result, but it didn't.

Check my results on the attached pictures, please. Both meshes were done using the same setup.

Does anyone knows where is the problem and how can it be corrected?

Best, Darko

15

General / Tiled Model Generation Failure

« on: August 03, 2020, 11:02:24 PM »

Dear Aleksey,
I have tried to make a TLS model from the 13 huge photos (140 Mpix), and it failed with bailing out of the program like nothing happened. Project is done so far with the successful generation of the dense cloud, DEM and orthomozaik, but failed in the TLS.
I have copied all the files to my Google Drive. Can you download it ant try it out yourself, please?
Best,
Darko Car

https://drive.google.com/drive/folders/1h5YO8T3PP2j_IfNTSSCt4oaNH51BSGGw?usp=sharing