Messages

1

General / Color Calibration Phase One IXU150

« on: September 01, 2023, 03:47:21 AM »

Hi Everyone,

I processed a project from a 150 mp phase one sensor. The project is 14,000 Ha and everything is fine except for the shades of the flight lines. What's the correct procedure to remove these shades (see attached image)? Would color calibration of the Mesh do the trick? This is only visible when viewing from far away when I zoom in it can't be perceived.

best,

Santiago

2

General / How would the new MacStudio do with Metashape

« on: March 24, 2022, 10:42:11 PM »

Hi Everyone,

Not an apple fan boy or anything, actually the contrary, but I'm seeing these crazy benchmarks of the new Mac Studio with the M1 Ultra outpreforming anyhting at any task. Does anyone have it to test out how good it fares at processing photogrammetry datasets?

Best,

Santiago T

3

General / Orthophoto colors and artifacts error

« on: April 19, 2021, 05:17:36 PM »

Hi,

I've been having this issue mainly when I have cloudy days and the exposure varies during flight. I get this weird texture on my final ortho which aesthetically isn't adequate. Is there a way to avoid this or is there a solution? Mosaic editor won't solve the problem,  at least no most of the time.

Thanks,

Santiago

4

General / Thermal Reflectance Map from RJPG Images

« on: October 01, 2020, 06:56:23 PM »

Hi,

Does anyone know if I can create an accurate thermal mosaic derived from RJPG XT2 images? I need to create a Thermal mosaic for solar panel inspections, but I need the accurate thermal pixel number to be maintained in the mosaic. Has anyone managed to achieve this?

Best regards, 

Santiago T

5

General / Re: PHANTOM 4 RTK ALIGMENT ISSUES

« on: November 09, 2019, 12:43:51 AM »

Hi Alexey,

Please find attached the screenshots and the txt file with the estimated values. I'll try processing with the workflow you suggest and let you know how it goes.

Thanks, 

Santiago

6

General / PHANTOM 4 RTK ALIGMENT ISSUES

« on: November 08, 2019, 05:14:16 PM »

Hi everyone,

I have a project were I used a phantom 4 RTK for a very rigorous client. We did every flight without truning off the base station that comes with the drone so that every flight would be logged with the same elevation. Still we're getting a huge aligment error for an important portion of the area. I've tried checking and unchecking the load accuracy form xmp data but eithewr way I get the error. Could anyone advise on what might be happening, I've already checked the rotation values and there's no apparent issues there.

Best

7

General / Re: Align new images with a bigger Project

« on: October 05, 2019, 05:59:33 AM »

Hi Alexey,

I did not have the keep key points selected in the advanced tab. I assume I have to align the whole project again. It's a shame as it's huge, but thanks for the help. I'll keep that small detail in mind from now on and always keep it selected.

Best,

Santiago

8

General / Align new images with a bigger Project

« on: September 26, 2019, 08:21:37 PM »

Hi,

I'm having issues to align new images to a huge project I'm processing. The whole project has around 60K images so far, and I just got 2.5K new images that I need to align, but it's been impossible to align this neww images without resetting the whole project. I don't know what should be the methodolgy used but I've tried selecting around 5K images that include the new ones and the one that have already aligned and oerlap with them, then I right click and select the option align selected images with no new images aligned in the process.

Please let me know how to proceed. Right now I'm aligning the new images in another chunk, but chunk aligment has worked very poorly so far.

Best regards,

9

General / Re: Rotated Region by Accident

« on: September 09, 2019, 07:42:44 PM »

Hi Alexey,

Yes I'm aware of this, but it seems I rotated the region by accident in an axis I didn't want to. To avoid having to do the project from scratch is there a way to go back to a ortho projection?

Thanks

10

General / Rotated Region by Accident

« on: September 04, 2019, 08:08:50 PM »

Hi,

I'm working on a survey and I need to rotate the region so my bounding box can process just one zone. By accident I might have rotated the region in the X or Y axis. When I finished processing I noticed something weird on the point cloud so I zoomed to my bounding box and noticed I had some slight rotation of the region. How can I make sure my region only rotates on the Z axis or in case I rotate it over the XY axis correct it.

Best,

Santiago

11

General / Re: Alignment Stuck at 99% for 2 days

« on: August 28, 2019, 12:22:40 AM »

Hi Alexey,

Thank you for your reply. I'm using version 1.5.4. I had to break the project in 3 parts. I'm processing 13 thousand images now. I would like to do the following as well. I've failed to align  chunks before and don't want to do it that way. Is there a way to align some cameras first then add some more to the project and align all of them without resetting the alignment on the first cameras?

When I try to align new cameras into a project it always fails.

Best,

12

General / Alignment Stuck at 99% for 2 days

« on: August 24, 2019, 10:42:34 PM »

Hi everyone,

I'm trying to align over 30K images in agisoft. I'm getting this in teh details pane.

adjusting: - 0.237568 -> 0.237568
merging failed
block: 1719 sensors, 11236 cameras, 18374058 points, 49051839 projections
block_sensors: 1.41641 MB (1.97589 MB allocated)
block_cameras: 4.37192 MB (4.91354 MB allocated)
block_points: 841.098 MB (1231.7 MB allocated)
block_tracks: 70.0915 MB (70.0915 MB allocated)
block_obs: 935.59 MB (935.59 MB allocated)
block_ofs: 140.183 MB (140.183 MB allocated)
block_fre: 0 MB (0 MB allocated)
adding 14924089 points, 0 far (13.256 threshold), 15132 inaccurate, 8126 invisible, 999 weak
adjusting: xxxxxxxxxxxxxxx

It keeps trying to adjust and it's been at 99% for over 2 days. I don't want to cancel the processing just in case it's close to finishing, but if it's going to take for ever I will have to abort. Please can anyone help me out here?

Best,

Santiago

13

General / Breaklines and mass points

« on: January 24, 2019, 09:40:29 PM »

Hi everyone,

What would you say is the most precise and efficient way  of creating breaklines and mass points from UAV data sets. I normally don't do this for every project, only those were roads, creeks, rivers, mine pits and so are present, this way generating a more accurate TIN vs just working with the DSM and DTM generated. What I'm doing right now, with the resources I have, is draw polylines directly on the point cloud using agisoft and exporting this to arcmap were I generate a TIN based on those 3D polylines. This is time consuming and in some cases not as accurate as using the stereo pairs, which isn't an option with UAV data because of the amount of images generated in a flight.

I found two software that show how to create breaklines from point clouds, but really don't know how they would work in certain conditions where lots of vegetation is present. One of the is Carlson Software and the other is virtual surveyor. If anyone has worked with any of this please provide some feedback or if you have a much better aproach it would be interesting to hear about it.

I must also add that I'm not a photogrammetrist, my background is more based on GIS software but with no photogrammetry training, everything I've learned about photogrammetry has been through experience.

Best,

Santiago

14

General / Making 3D print of a open pit

« on: August 16, 2018, 02:38:19 AM »

Hi Everyone,

I want to make a 3D print of a open mine pit. Since it's a hole and I have little to no experience with 3D models, I work Agisoft exclusively for photogrammetry purposes, I wanted to know how can I close the hole or what the approach would be to make a 3D model of this open mine pit. Is there a way with software like Mesh Lab to make walls and a floor to the model and be able to close it.

Thanks,

Santiago

15

General / How to avoid this effect in orthophoto

« on: June 18, 2018, 10:05:27 PM »

Hi Guys,

I've been seeing this effect whenever there's a change in light in the images. Where there are shadows and direct sunlight just between them I'm getting this effect that affects the quality of the ortho. Any way to work around it.

Best regards and thanks,

Santiago