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<p>Many country/state/local governments release LiDAR data for free, which could be used for developing and testing this workflow.
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<p>For example: <a title="Ctrl+Click or tap to follow the link" id="LPlnk899750" href="https://environmentagency.blog.gov.uk/2015/09/18/laser-surveys-light-up-open-data/">
https://environmentagency.blog.gov.uk/2015/09/18/laser-surveys-light-up-open-data/</a><br>
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<p class="MsoNormal"><img style="-moz-user-select: none;" alt="http://sig.cmparks.net/cmp-ms-90x122.png" height="122" hspace="12" align="left" width="90" src="http://sig.cmparks.net/cmp-ms-90x122.png"><a id="LPNoLP" name="_MailAutoSig"><span style="font-size:14.0pt; font-family:"Arial","sans-serif"; color:#006C56">Dakota
Benjamin<span></span><br>
</span></a><span style=""><span style="font-family:"Arial","sans-serif"; color:#006C56">Geospatial Developer</span></span><span style=""><span style="font-size:9.0pt; font-family:"Arial","sans-serif"; color:#006C56"><br>
</span></span><a id="LPNoLP" href="http://www.clemetparks.com/"><span style=""><span style="font-size:9.0pt; font-family:"Arial","sans-serif"">clevelandmetroparks.com</span></span><span style=""></span></a><span style=""></span></p>
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<p><a id="LPNoLP" title="Ctrl+Click or tap to follow the link" href="http://www.clemetparks.com/"><br>
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<p><a id="LPNoLP" title="Ctrl+Click or tap to follow the link" href="http://www.clemetparks.com/"></a><font face="Times New Roman,serif" size="3"><span style="font-size:12pt"><font color="black" size="2"><span style="font-size:10pt"><i>"It is not down in any
map; true places never are."</i></span></font></span></font> </p>
<div style="color:rgb(33,33,33); font-size:15px; margin:0px"><font face="Times New Roman,serif" size="3"><span style="font-size:12pt"><font color="black" size="2"><span style="font-size:10pt"> Herman Melville</span></font></span></font></div>
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<div id="divRplyFwdMsg" dir="ltr"><font style="font-size:11pt" face="Calibri, sans-serif" color="#000000"><b>From:</b> mather.stephen@gmail.com <mather.stephen@gmail.com> on behalf of Stephen Mather <stephen@smathermather.com><br>
<b>Sent:</b> Saturday, December 26, 2015 10:56 PM<br>
<b>To:</b> Dakota Benjamin<br>
<b>Cc:</b> opendronemap-dev@lists.osgeo.org<br>
<b>Subject:</b> Re: [OpenDroneMap-dev] Fw: [OpenDroneMap-users] Mesh Plotter for LidarLITE</font>
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<div dir="ltr">Dakota got a Lidar Lite from a friend... . I think affordable lidar scanners are going to rapidly become the norm, so we need to think through how they fit in to the photogrammetric workflow. Here are my initial thoughts:
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<div>LiDAR is cool, but requires accurate position and orientation info. Good sensors for position and orientation are expensive. Anecdotally, great orientation sensors are $20k. For RTK GPS, one can use Piksi at $1000 or other units at $10k and up, but this
is still expensive.</div>
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<div>I think the solution is to calculate the position and orientation of the sensor from photogrammetric info combined with GPS, and then use that to reverse calculate the LiDAR point cloud. I don't know yet what the accuracy will be, we'll at least be able
to test the accuracy of photogrammetric positions (XYZ, but not orientation) from ODM if we use a dataset with RTK.</div>
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<div>Thoughts?</div>
<div>Best,</div>
<div>Steve</div>
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<div class="gmail_quote">On Thu, Nov 19, 2015 at 1:09 PM, Dakota Benjamin <span dir="ltr">
<<a href="mailto:dmb2@clevelandmetroparks.com" target="_blank">dmb2@clevelandmetroparks.com</a>></span> wrote:<br>
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<p>I think this is an interesting development problem space. <br>
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<p class="MsoNormal"><img style="-moz-user-select: none;" alt="http://sig.cmparks.net/cmp-ms-90x122.png" height="122" hspace="12" align="left" width="90" src=""><a name="1512144d1a81dfd5__MailAutoSig"><span style="font-size:14.0pt; font-family:"Arial","sans-serif"; color:#006c56">Dakota
Benjamin<span></span><br>
</span></a><span><span style="font-family:"Arial","sans-serif"; color:#006c56">Geospatial Developer</span></span><span><span style="font-size:9.0pt; font-family:"Arial","sans-serif"; color:#006c56"><br>
</span></span><a href="http://www.clemetparks.com/" target="_blank"><span><span style="font-size:9.0pt; font-family:"Arial","sans-serif"">clevelandmetroparks.com</span></span><span></span></a><span></span></p>
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<p><a title="Ctrl+Click or tap to follow the link" href="http://www.clemetparks.com/" target="_blank"><br>
</a></p>
<p><a title="Ctrl+Click or tap to follow the link" href="http://www.clemetparks.com/" target="_blank"></a><font face="Times New Roman,serif" size="3"><span style="font-size:12pt"><font color="black" size="2"><span style="font-size:10pt"><i>"It is not down in
any map; true places never are."</i></span></font></span></font> </p>
<div style="color:rgb(33,33,33); font-size:15px; margin:0px"><font face="Times New Roman,serif" size="3"><span style="font-size:12pt"><font color="black" size="2"><span style="font-size:10pt"> Herman Melville</span></font></span></font></div>
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<div dir="ltr"><font style="font-size:11pt" face="Calibri, sans-serif" color="#000000"><b>From:</b> OpenDroneMap-users <<a href="mailto:opendronemap-users-bounces@lists.osgeo.org" target="_blank">opendronemap-users-bounces@lists.osgeo.org</a>> on behalf of
Andrew Jawitz <<a href="mailto:andrewjawitz@gmail.com" target="_blank">andrewjawitz@gmail.com</a>><br>
<b>Sent:</b> Thursday, November 19, 2015 11:41 AM<br>
<b>To:</b> <a href="mailto:opendronemap-users@lists.osgeo.org" target="_blank">opendronemap-users@lists.osgeo.org</a><br>
<b>Subject:</b> [OpenDroneMap-users] Mesh Plotter for LidarLITE</font>
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<div class="gmail_default" style="font-family:tahoma,sans-serif">Hello All,</div>
<div class="gmail_default" style="font-family:tahoma,sans-serif"> I have an update and a question regarding my ongoing experimentation with the LidarLITE...</div>
<div class="gmail_default" style="font-family:tahoma,sans-serif"> I've been searching and searching for months for a project sample that uses the LL for 3D Mapping but apparently there were so many problems with the original i2C library in particular that
hardly anyone could get it to work. Finally, I found this tutorial- </div>
<div class="gmail_default" style="font-family:tahoma,sans-serif"><a href="http://myrobotlab.org/content/lidar-lite-distance-measurement-and-creating-point-cloud" target="_blank">http://myrobotlab.org/content/lidar-lite-distance-measurement-and-creating-point-cloud </a></div>
<div class="gmail_default" style="font-family:tahoma,sans-serif"> which seems to be a good starting point. If you want a good chuckle check out the comment thread which has all of these veteran robotics guys scratching their heads trying to figure out how
this guy got up and running so easily. FWIW it looks like the official documentation had just been updated to include a recommendation for this alternate i2C Library- <a href="http://www.dsscircuits.com/index.php/articles/66-arduino-i2c-master-library" target="_blank">http://www.dsscircuits.com/index.php/articles/66-arduino-i2c-master-library</a></div>
<div class="gmail_default" style="font-family:tahoma,sans-serif"> Ironically it only works with the original LL (which I have) and not the updated "Blue Label" version...</div>
<div class="gmail_default" style="font-family:tahoma,sans-serif"><br>
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<div class="gmail_default" style="font-family:tahoma,sans-serif"> Anyway, after loading the alternate i2C Library, I managed to get the sketch to compile on Arduino 1.6.6 and sure enough coordinates started popping up on the serial monitor! I can create a
project gist with all the code if others would like but for now you can find the sketch I'm using on my sketchbook repo- <a href="https://github.com/Cribstone/Arduino-Sketchbook/blob/master/LidarLitePointCloud/LidarLitePointCloud.ino" target="_blank">https://github.com/Cribstone/Arduino-Sketchbook/blob/master/LidarLitePointCloud/LidarLitePointCloud.ino</a></div>
<div class="gmail_default" style="font-family:tahoma,sans-serif"> If you were wondering where to find the source for the Processing Sketch referenced in the article, I was able to find it here-<a href="http://borsaci06.com/Plot_LidarScanner.pde" target="_blank">http://borsaci06.com/Plot_LidarScanner.pde</a></div>
<div class="gmail_default" style="font-family:tahoma,sans-serif"> While, I was able to compile this sketch in Processing 3.0, it threw out a list of Java-related errors when I tried to start it(Enough to remind me why I'll go so far out of my way to avoid Java)...</div>
<div class="gmail_default" style="font-family:tahoma,sans-serif"><br>
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<div class="gmail_default" style="font-family:tahoma,sans-serif"> So that leads to my question... Would it be possible to plot point clouds from an Arduino i2c/serial port using ODM in place of Processing?</div>
<div class="gmail_default" style="font-family:tahoma,sans-serif"><br>
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<div class="gmail_default" style="font-family:tahoma,sans-serif"><a href="http://cribstone.github.io/about/" target="_blank" style="font-family:arial,sans-serif"><b>http://cribstone.github.io/about/</b></a><br>
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