kopia lustrzana https://github.com/OpenDroneMap/docs
tweaks
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Flying tips
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===========
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The Humanitarian OpenStreetMap team has guidelines on `flying for UAV mapping <https://uav-guidelines.openaerialmap.org/>`_:
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The `Humanitarian OpenStreetMap team <https://www.hotosm.org/>`_ has guidelines on `flying for UAV mapping <https://uav-guidelines.openaerialmap.org/>`_:
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- `Choosing the right UAV <https://uav-guidelines.openaerialmap.org/pages/05-choosing-the-right-uav/>`_
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@ -9,7 +9,7 @@ The Humanitarian OpenStreetMap team has guidelines on `flying for UAV mapping <h
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- `Mission preparation <https://uav-guidelines.openaerialmap.org/pages/07-preparing-for-the-uav-mission/>`_
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The guidelines are intended for mapping projects on islands, but have general use for all drone mappers.
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The guidelines are intended for drone mapping projects on islands, but have general use for all drone mappers.
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See also DroneDeploy's guide on `Making Successful Maps <https://support.dronedeploy.com/docs/making-successful-maps>`_, which provides great tips on mission planning.
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@ -12,7 +12,13 @@ Split-merge works in WebODM out of the box as long as the processing nodes suppo
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Calibrate images
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----------------
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Image calibration is recommended (but not required) for large datasets because error propagation due to image distortion could cause a bowl effect on the models. Calibration instructions can be found at `Calibrate Images <using.html#calibrating-the-camera>`_.
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Image calibration is recommended (but not required) for large datasets because error propagation due to image distortion could cause a bowl effect on the models. Calibration instructions can be found at `Calibrate Images <using.html#calibrating-the-camera>`_.
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.. figure:: images/msimbasi_bowling.png
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:alt: image of lens distortion effect on bowling of data
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:align: center
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Bowling effect on point cloud over 13,000+ image dataset collected by World Bank Tanzania over the flood prone Msimbasi Basin, Dar es Salaam, Tanzania.
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Local Split-Merge
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-----------------
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@ -36,7 +36,6 @@ Orthophoto
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:alt: image of OpenDroneMap orthophoto
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:align: center
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DTM/DSM
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^^^^^^^
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@ -3,7 +3,6 @@
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Usage
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=====
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.. _docker-usage:
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Docker
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@ -52,11 +51,15 @@ Then sit back, grab a coffee and wait. You only have to specify ``--images </pat
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Tutorials
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---------
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Below you will find step-by-step instructions for some common use cases.
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Below you will find instructions for some common use cases.
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Creating High Quality Orthophotos
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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.. figure:: images/orthophoto.png
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:alt: image of OpenDroneMap orthophoto
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:align: center
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Without any parameter tweaks, ODM chooses a good compromise between quality, speed and memory usage. If you want to get higher quality results, you need to tweak some parameters:
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* ``--orthophoto-resolution`` is the resolution of the orthophoto in cm/pixel. Decrease this value for a higher resolution result.
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@ -68,7 +71,11 @@ Without any parameter tweaks, ODM chooses a good compromise between quality, spe
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Creating Digital Elevation Models
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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By default ODM does not create DEMs. To create a digital terrain model, make sure to pass the ``--dtm`` flag.
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By default ODM does not create DEMs. To create a digital terrain model, make sure to pass the ``--dtm`` flag. To create a digital surface model, be sure to pass the ``--dsm`` flag.
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.. figure:: images/digitalsurfacemodel.png
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:alt: image of OpenDroneMap derived digital surface model
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:align: center
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For DTM generation, a Simple Morphological Filter (smrf) is used to classify points in ground vs. non-ground and only the ground points are used. The ``smrf`` filter can be controlled via several parameters:
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