Questions tagged [opendronemap]
OpenDroneMap is an open-source photogrammetry toolkit to process aerial survey imagery into maps and 3D models using the Structure From Motion principle. It is available for download in docker container format as well as in binary for Linux, MacOS, and Windows. Source code for all of the components is currently hosted on GitHub.
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GSD or pixel size for volume
When I want to calculate the volume of a building polygon (in my case), do I use the GSD that I received in a WebODM report or the pixel size of the elevation raster? What is the difference between ...
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Calculating NDVI using OrfeoToolbox
Platform: Windows 11
Aim trying to achieve: I have downloaded some multispectral test data from OpenDroneMap (ODM) forum. The data is captured with DJI Mavic 3M. What I want is to analyze NDVI, NDRE, ...
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QGIS LAS Elevation profile outputs - include instensity, return, etc and access via python
When I run an elevation profile in the current Dev of QGIS I get the graph as expected but if I save to gpkg, it creates a point dataset to which I can then add the x and y but how do I get the ...
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Low reflectance values
I use DJI P4 multispectral. Here is the command I gave in opendronemap software.
–dem-resolution 1.5 --orthophoto-resolution 1.5
–orthophoto-png --dsm
–radiometric-calibration camera
–texturing-skip-...
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NodeODM options to generate Ultra high quality orthophoto
In WebODM, when I generate orthophoto I can choose the option "Ultra" for image quality
In the official documentation, there is no mention on how can I achieve the same using NodeODM API. ...
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Using QGIS With WebODM
In summary, I have a tiff file created in WebODM which has irregular borders.
I want to accomplish two things:
I want to crop it into a neat rectangle
I want it to have a scale so I assume I need to ...
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Publish high resolution drone data as gpkg with mapproxy
I am currently sitting in front of the problem of publishing high resolution drone data via mapproxy as wmts service.
My approach is the following:
Calculation of an orthophoto with OpenDroneMap.
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How to set GCP in local coordinates system to images to be processed with ODM
I have a drone survey of a local area of 200x200 meters. I have about 45 photos.
6 photogrammetric control points were placed on the ground and measured with centimeter precision from topographic ...
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Georeferencing multiple "slightly" overlapping drone orthomosaics
Situation:
I collected around 2000 drone images over 200 ha. My computer does not have the resources to render one large orthomosaic at once, so I decided to split my dataset into 8 and produce 8 ...
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How is georeferencing information stored in geo-refrenced 3d models?
I have a .obj file downloaded from Open Drone Map, labelled as geo-referenced model. How can I figure out the geo-referencing information stored in it? I need to use it in unity or any other such ...
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Setting GCP in OpenDroneMap Project
I have run OpenDroneMap(ODM) on a bunch of drone images of a particular area. I have set the Ground Control Points(GCP) using Webodm gcp interface. Now, I have a gcp_list.txt file containing the ...
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Build CityGML Buildings from OBJ files of OpenDroneMap
I have .obj 3D mesh files after running OpenDroneMap on Drone Images. I want to convert them to CityGML buildings so that I can put them on Cesium Globe.
How can I do this?
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Abnormal Output of OpenDroneMap with GCP file
I am using a gcp_list.txt file with the following text:
I am supposed to get a geo-referenced mesh object like this:
But, I am getting something like this:
I am running ODM locally in ubuntu 16 ...
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How to determine if a .obj 3D Mesh file is geo-referenced or not?
I have a .obj file output from OpenDroneMap. But I cannot determine if it is geo-referenced or not. How can I determine that?
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How to convert .OBJ 3D Mesh Georeferenced file generated from OpenDroneMap to .kmz format for Cesium?
I have Open Drone Map Output of a 3D Mesh Object file in .obj extension. I want to convert it into .kmz format to put it into Cesium Ion. How can I convert the files in the picture to a .kmz format ...