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UCANR-IGIS / uasimg

The uasimg R package provides utilities for managing drone imagery, including creating data catalogs and utilities for single-image analysis.
https://ucanr-igis.github.io/uasimg/
GNU General Public License v3.0
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DJI Zenmuse H20T #1

Open daliakopoulos opened 3 years ago

daliakopoulos commented 3 years ago

Please include DJI Zenmuse H20T in the list of supported sensors? The source page is presumably here: https://www.dji.com/gr/zenmuse-h20-series/specs?redirect_info=true

ajlyons commented 3 years ago

Thanks, the ZenMuse H20T was added to the camera csv file in uasimg version 1.5.0. Modelling image footprints or estimating the GSD won't work however. There are 3 very different sensors on this rig (zoom, wide and thermal), all of which record in the EXIF data as model 'PC3251' (at least in the sample images I was able to find). Modeling the GSD or footprint is difficult because there's no way to tell from the EXIF data alone which of the 3 sensors the image was taken from, hence it is not possible to 'look up' the CCD dimensions or pixel size. The H20 is also not in Pix4D's camera database, suggesting they have the same issues. But for mapping where images were taken, it should work fine.

daliakopoulos commented 3 years ago

Thank you for including the camera. The type of camera is always encoded in the image filename (i.e. xxxx_THRM.JPG, xxxx_WIDE.JPG, xxxx_ZOOM.JPG). Please have a look at the images I uploaded here: http://daliakopoulos.hydromech.gr/files/uasimg.zip

OterLabb commented 1 year ago

Maybe this came in an update sometime, but information about which camera is stored under ImageSource tag like so: "ImageSource": "ZoomCamera" "ImageSource": "WideCamera" "ImageSource": "InfraredCamera"