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introlab / rtabmap

RTAB-Map library and standalone application
https://introlab.github.io/rtabmap
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Increase texture mesh on mobile tango #728

Open Helmutfechners opened 3 years ago

Helmutfechners commented 3 years ago

I want increase the resolution on Rtabmap app on my Tango mobile Asus Zenfone AR. When i scan objects I want that even text is readable. Please check the quality of that photo. I was do a photo also with my mobile just with the normal camera app. I want perform that quality. P_20210524_113520_vHDR_On

I use allready HD mode. I changed it the settings in Rtabmap app. Seems there was not enough pixels used!

Any sugesstions to get similar resolution like the camera can do?

Stay safe and health Best and thank you Helmut

Helmutfechners commented 3 years ago

Please check the screenshot of a scan sample with image from Rtabmap app: 2021_05_28_21 49 06 here i can not read the printed text on the extra heavy paper folder

matlabbe commented 3 years ago

Hi, In HD Mode on Zenfone AR, the images recorded are 1920x1080 while the camera app take pictures at 5488x3088. Note that images may be downsampled when creating the meshes for visualization purpose, See Settings->Texture Resolution. The images in database are still saved in 1080p.

Here a comparison between 1080 (left taken by RTAB-Map Tango) vs 3088: Screenshot from 2021-05-28 17-19-33 zooming: Screenshot from 2021-05-28 17-20-13 zooming more: Screenshot from 2021-05-28 17-20-56

Note also when exporting to optimized mesh, the output texture resolution setting is in Settings->Exporting->Texture size.

cheers, Mathieu

Helmutfechners commented 3 years ago

Hi Mathieu, Thanks for your evaluation and quick response. One question more, is there an option to scan in lower distance than 1 meter to get a better resolution. I allready changed the scanning distance to 0 meter, but when scanning it show me notification that am to close to the object (nearer than 1 meter) Happy to get an evaluation from you for that fact as well Best Helmut

matlabbe commented 3 years ago

Hi Helmut,

The 1 meter warning is only a warning, the data is still recorded, so you can scan closer than 1 meter. Note however that the depth sensor will eventually return nothing when too close from surfaces.