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<p style="margin-top:0;margin-bottom:0">In OpenDroneMap, we run interpolation at multiple distances and then stack them back together to keep as many features as possible while also interpolating as best as possible between gaps:</p>

<p style="margin-top:0;margin-bottom:0"><a href="https://github.com/OpenDroneMap/ODM/blob/master/scripts/odm_dem.py" class="OWAAutoLink" id="LPlnk150110" previewremoved="true">https://github.com/OpenDroneMap/ODM/blob/master/scripts/odm_dem.py</a><br>

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<p style="margin-top:0;margin-bottom:0">It can get expensive, but it's easy to thread.<br>

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<span style="font-family:Helvetica,sans-serif">clevelandmetroparks.com</span></span></a></span></p>

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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> pdal <pdal-bounces@lists.osgeo.org> on behalf of Luigi Pirelli <luipir@gmail.com><br>

<b>Sent:</b> Wednesday, December 12, 2018 11:28:34 AM<br>

<b>To:</b> careyshan@gmail.com<br>

<b>Cc:</b> pdal@lists.osgeo.org<br>

<b>Subject:</b> Re: [pdal] Fill holes in dtm</font>

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<div dir="ltr">it's not specifically a point cloud processing, but from raster side, you can use many solutions, one of them is gdal_fillnodata.py script (package python_gdal)<br clear="all">

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<div dir="ltr" class="x_gmail_signature">Luigi Pirelli<br>

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https://www.packtpub.com/big-data-and-business-intelligence/mastering-qgis-second-edition</a><br>

* Hire me: <a href="http://goo.gl/BYRQKg" target="_blank">http://goo.gl/BYRQKg</a><br>

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<div dir="ltr">On Wed, 12 Dec 2018 at 17:15, Shane Carey <<a href="mailto:careyshan@gmail.com">careyshan@gmail.com</a>> wrote:<br>

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<div>Hi,</div>

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<div>I've been using pdal to filter some las files to create a dtm and ground classified points. Its really excellent at doing this.

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<div>After doing this and creating a dtm, there are holes left in the DTM. I cant find a way of filling the holes and was wondering are there tools in PDAL to do this? See image below of houses etc removed from the dtm and now need to be filled in.</div>

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<div>Many thanks<br>

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<div><img alt="image.png" width="353" height="548" data-outlook-trace="F:0|T:1" src="cid:ii_jplibypu0"><br>

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<div>Le gach dea ghui,<br>

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<div><span style="color:rgb(61,133,198)"><b><span style="background-color:rgb(255,255,255)"><i>Shane Carey</i></span></b></span></div>

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