Recent Posts

1

General / Reduce Overlap 1.7.0

« Last post by Hamish on Today at 12:37:50 AM »

How do you use the reduce overlap feature in 1.7.0 ? I'm familiar with this feature in previous versions now I'm a bit confused.

I have aligned cameras to build sparse cloud (206 Cameras), built mesh from sparse cloud, reduce overlap.

Select camera model, There is a choice of six cameras - what should I select? and what is the difference?:
DMC-GF3 (14mm) - which is the camera and lens combination I used to take the photos, Same Physical camera, same lens, 2 different apertures and 8 different shutter speeds, yet it appears five times in the list.
Default camera (50mm)

Surface Coverage ??

In the absence of an updated manual for version 1.7, is there some help on this





Metashape 1.7.0.11736 - Windows 10 Pro 1909 - AMD FX8350 - 32GB Ram - RTX2060 6GB (v457.51)

2

General / Re: Agisoft Metashape 1.7.0 pre-release

« Last post by Alexey Pasumansky on January 19, 2021, 11:20:48 PM »

thank you for your reply. Attached you find a log file with the mentioned problem.

I usually work with .dng files, converted from Nikon D850 .nef Raw files - so a resolution of 8256x5504 pixels and a bit depth of 14bit.

Hello Andreas,

In the 1.7.1 update there will be a tweak allowing to downscale images to 8-bit for the depth maps generation, which will considerably reduce the memory consumption. I think it wouldn't affect the resulting quality in general case.

3

Feature Requests / Option to blend 360 Panoramas at left/right edge

« Last post by tristeng on January 19, 2021, 10:42:54 PM »

The Panorama blending works great everywhere except where the left and right edge of the image will wrap. After we create the 360 image, we then use a tool to create a product where we can rotate the view around the panorama, but at the seam where the image wraps and joins, we get an imperfect blend.

Would it be possible to implement a blend along this edge to make it seamless?

4

Python and Java API / Re: Exporting 1 multiband orthomosaic raster (Altum camera used)

« Last post by Alexey Pasumansky on January 19, 2021, 10:42:53 PM »

Hello michaldolnik,

Thank you for letting me know, that the problem has been resolved.

Some post processing and analysis applications may misinterpret transparency in alpha-channel. MicaSense also gives their recommendations to switch off Save Alpha option:
https://support.micasense.com/hc/en-us/articles/360002693373-Process-MicaSense-sensor-data-in-Agisoft-Metashape

5

Python and Java API / Re: Exporting 1 multiband orthomosaic raster (Altum camera used)

« Last post by michaldolnik on January 19, 2021, 06:41:08 PM »

Hello Alexey,

I have already found out where the problem was. All I had to do is to set up parameter save_alpha=False in exportRaster method.

Now the raster is exported well.

6

General / Re: How to project feature pixel-annotation to orthomosaic

« Last post by Paulo on January 19, 2021, 04:48:13 PM »

Yes as Salmon says in Metashape, it is not possible to access the individual pixels from Ortho to do reprojection into each photo where it appears. But if you have a shape polygon (3D) for each colored area of interest from your Ortho, then just use Filter Photos by Shapes context menu for selected shape and then you can review each image where selected shape is present and eventually print out or file the image coordinates for such shape. As in attached example, where polygon projection of selected shape is printed out for 4 images...(image size is 4608 pix by 3456 pix)

7

General / Re: How to project feature pixel-annotation to orthomosaic

« Last post by salmon on January 19, 2021, 04:12:31 PM »

Hi,
nope i think it is not possible with Metashape. However mathematically speaking it should be possible.

For the calculation you will need the estimated pose of the camera and the DEM that was used for orthomosaic creation.  Then for each pixel-feature you need to perform the inverse operation of orthorectification. That will involve raycasting from the pixels of the image you want to project to the DEM and based on that select pixel-features on the orthomosaic.

As an approximation you could use gdalwarp which just does reprojection no raycasting if you have flat terrain.

8

Python and Java API / Re: Exporting 1 multiband orthomosaic raster (Altum camera used)

« Last post by Alexey Pasumansky on January 19, 2021, 03:46:55 PM »

Hello michaldolnik,

Is the problem observed only with the Python-based export or using the similar approach for GUI export also results in the incorrect output?

9

General / Re: Multi-camera rig not aligning

« Last post by Alexey Pasumansky on January 19, 2021, 03:23:30 PM »

Hello Hrishi,

Can you please send the project with the alignment results to support@agisoft.com?

Do all the cameras in the multi-camera system take the images simultaneously?

10

Bug Reports / Re: Failure at ...hierarchical_stereo.cpp

« Last post by Alexey Pasumansky on January 19, 2021, 03:14:57 PM »

Hello Dannosuke,

Which OS version you are using and which AMD driver version is installed?