Need help with body reconstruction

[Autukill]

version: 3DF Zephyr Lite 3.302 64bit
data set: https://drive.google.com/file/d/1SGK...zhxK6NtJi/view
workflow: default settings (body)
problem: the reconstruction model is ok, but the top of head,and hand is bad.
How to modify the workflow in order to solve this problem?


RealityCapture get good model:

[Roberto]

Hi Autukill,

thanks for sharing the info and the full dataset! Unfortunately we haven't had the time to have a look at the dataset yet, but we'll certainly make some tests tomorrow.

Before we make some tests, I can already give you some hints:
- Download the new version 3.5 we have just released! On any high details preset or from advanced you can choose to activate the 'hyperplane matching' function during the dense point cloud computation. This will help to extract more details.
- Try to use the sharp generation algorithm for mesh generation. In some cases, this works better than the smooth one for bodies (default one for body is the smooth one). Simply switch to advanced mode and select the sharp algorithm:

[Autukill]

Thank you for your advice, I will try it and reply

[Scott Nebeker]

You shut down the link to the Google Drive folder. Did this work?

[Autukill]

update: https://drive.google.com/open?id=1Ix...gXh37cfXex_2cS

[Andrea Alessi]

Hi Autukill,

sorry for the delay! We'll process your dataset today, we had a little backlog to process and all workstations were busy, we'll get back to you soon!

[Roberto]

sorry it took a bit long, but we finally processed your dataset.

There are several things you can modify to improve the results. First of all, you need to modify the camera calibrations and let them adjust in an independent way.
By default Zephyr groups together the parameters coming from the same type camera. Grouping is generally more stable. However, when using a rig of cameras you will get much better results if you let them vary independently, especially in your case as the parameters varies a lot between the cameras because they are different cameras with small sensors. To let them be adjusted independently, simply select all calibrations from the camera calibration page (ctrl+a), right click and select 'clone calibrations':



Just by following this step, you should obtain already a much better results (both with close range and body presets or by decreasing the smoothness from advanced settings):



If you want to improve the results further near the hands, you can mask a few images. You don't to mask all the images, a bunch of 10-20 images will already improve the results greatly. If you have masked some images, starting from the 'close range - high details sharp features' preset during mesh generation you can switch to custom settings and change the 'UseMasking' parameter to 1:



Final result:



I've uploaded the zep file with both example here: https://shared.3dflow.net/index.php/s/Of8S26iW1AaJTDm

Please let me know if you need further help

[Autukill]

thank you very much