Messages

1

General / Re: How to use markers to align cameras?

« on: April 07, 2020, 04:40:56 PM »

I figured it out!

Can you teel how?
Tanks

2

General / Re: Your opinion on USGS Agisoft Processing Workflow

« on: March 20, 2020, 01:57:03 PM »

Hello everyone,

I'm new to the forum and also at work on Metashape. I have some experience with photogrammetry - a few years of work on Z / I Imaging. Now I start with Agisoft .... But back to the topic, I practiced the USGS workflow on several data sets - 1.5 ha (75%, 75%) 100 photos, 12 ha (80%, 80%) 530 photos and 12 ha (60%, 40%) 370 photos grid- the same area, GCP measured with accuracy xyz 1cm, pixel 2cm, drone P4RTK. Alignment carried out to obtain errors assumed by USGS, camera parameters - all marked without additional. I recommend this workflow, very good results obtained. At 33 checkpoints, errors no larger than 2cm. The dense cloud finally generates quickly, about 40 minutes on high setting. Dense cloud height accuracy at +/- 2 cm checkpoints. I really recommend.
PS. I want to introduce some modifications of the workflow in order to obtain more accurate image matching from about 0.2 pix

Regards
Maciek

Dont forget tell us what you change and your results, great work. 

3

General / Re: Metadata description

« on: January 09, 2020, 05:05:28 PM »

Hello working_guy,

Currently there are no additional tools in Metashape for additional meta-data editing to the exported results.

You might need external tools to include additional meta-information tags to the exported dense clouds and orthomosaics (providing that the selected formats support that).
If you know which tags/fields should be modified and in which formats, please let us know, so that we could check the possibility of extending the comments/description data writer in the future updates.

Hi thanks Alexev.

I think the basic like, author, company name, e-mail contact, local of the work, client name, basic information about the work.

Thanks again

Even without considering exports I think it would be very useful to be able to store arbitrary metadata as key value pairs within the project file.

Tags like Author and Description could certainly be useful at export time, but I've also wanted to use various pieces of metadata about a project to control how it's processed by automated scripts.  Right now we store that metadata separately as a sidecar file, but it would be very convenient to have it directly accessible within the software.

This

4

General / Re: Your opinion on USGS Agisoft Processing Workflow

« on: December 06, 2019, 07:59:15 PM »

Thanks I go see that.

5

General / Re: Metadata description

« on: December 06, 2019, 05:02:28 PM »

Nothing?

6

General / Re: Your opinion on USGS Agisoft Processing Workflow

« on: December 05, 2019, 11:13:59 AM »

bgroff

Where you define the set tie point tolerance? I Can't find that.

Thanks

HRS

Hi. I've tried the USGS workflow for a few weeks now on several projects and these are my observations:

• Number of projections per photo seems better at a minimum of 150, rather than 100 as USGS suggests
• The mean error in each photo of 0.3 pixels seems fine, though 0.4 is my usual result
• The whole gradual selection workflow appears okay. No major hangups with it
• Tie point tolerance has the greatest effect on increasing SEUW to 1, but I find that my GCP and check point errors are much higher as I lower tie point tolerance toward 0.1. My preference is to set tie point tolerance to around 0.3 and this appears to result in my desired 5cm accuracy for GCP and check points.

All of my mapping operations are using a P4P with 20MP camera, no RTK/PPK yet, but GCP set with diff. GNSS receivers. We're looking at higher quality mapping drones.

7

General / Metadata description

« on: November 28, 2019, 02:14:04 PM »

Hello

How it's possible to insert description of work (company name, worker, local, etc) in the file exported? Files like dense cloud and Orthomosaic?

I See I only can add 1 comment when exporting by Batch Process, but we need more fields...

Thanks

Best Regards
HRS

8

General / Re: Adaptive Camera Model Fitting which step

« on: July 31, 2019, 11:48:40 AM »

I'm interested too. I using agisoft with UAV, and you?

9

General / Re: Focal lenght

« on: July 19, 2019, 07:34:35 PM »

Thanks Alexey

I see what you said.

For now I allways select the Camera Model Fitting option in the Align Photos, and the Focal lenght changes.

10

General / Re: Focal lenght

« on: July 19, 2019, 11:17:35 AM »

nobody?

11

General / Focal lenght

« on: July 17, 2019, 11:37:38 AM »

Hello to all.
I'm New where and I'm starting with Agisoft/Metashape.

I work with aereal photogrammetry, and I have a doubt.

When I insert photos the app view the câmera and the focal length (something like 2311.****) after align the photos sometimes the focal length change and anothers don't.

It's normal the focal lenght changed in adjusted settings?.

Thanks in advanced.

Hugo Ricardo Silva

12

General / Some problems when I make ortho's

« on: June 12, 2019, 12:32:30 PM »

No responses