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<p>Hi Richard:</p>
<p>It sounds like you are in the world of manually georeferencing
or ortho creation. This would entail identifying ground control
points for each image and processing. <br>
</p>
<p>Assuming you do not need all 6000 images at one time, you could
tag each image to its central location and then ortho or geo it if
it is needed. <br>
</p>
<p>Kirk<br>
</p>
<div class="moz-cite-prefix">On 11/3/2021 7:45 AM, John Layt wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CADRRrgbd0bvWT0ZWTFzMPC4WzC0NW7A8Q8F2+igNR4FER0Ng3g@mail.gmail.com">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<div dir="ltr">Hi Richard,
<div><br>
</div>
<div>The Historic England aerial photography team have been
working on a similar sort of project which they recently
released (see <a
href="https://historicengland.org.uk/whats-new/news/new-virtual-aerial-map-allows-everyone-to-explore-englands-archaeology-from-the-air/"
moz-do-not-send="true" class="moz-txt-link-freetext">https://historicengland.org.uk/whats-new/news/new-virtual-aerial-map-allows-everyone-to-explore-englands-archaeology-from-the-air/</a>).
Perhaps they might be able to provide some advice on how they
did it? There's an email address at <a
href="https://historicengland.org.uk/research/methods/airborne-remote-sensing/"
moz-do-not-send="true" class="moz-txt-link-freetext">https://historicengland.org.uk/research/methods/airborne-remote-sensing/</a>.</div>
<div><br>
</div>
<div>Cheers!</div>
<div><br>
</div>
<div>John.</div>
<div><br>
</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Wed, 3 Nov 2021 at 10:27,
Richard McDonnell <<a
href="mailto:richard.mcdonnell@opw.ie"
moz-do-not-send="true" class="moz-txt-link-freetext">richard.mcdonnell@opw.ie</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div lang="EN-IE">
<div class="gmail-m_-2619236374252926420WordSection1">
<p class="MsoNormal"><span style="color:rgb(31,73,125)">Hi
Kirk and Charles,</span></p>
<p class="MsoNormal"><span style="color:rgb(31,73,125)">Thanks
for your reply. This is what we know…</span></p>
<p class="MsoNormal"><span style="color:rgb(31,73,125)"> </span></p>
<p class="MsoNormal"><span style="color:rgb(31,73,125)">CAMERA:
Wild RC8 and RC10 152mm Focal Length.
</span></p>
<p class="MsoNormal"><span style="color:rgb(31,73,125)">ALTITUDE:
4,560m with Block Adjustments for
Mountainous areas</span></p>
<p class="MsoNormal"><span style="color:rgb(31,73,125)">IMAGE
OVERLAP: 60% along track 25% side lap and
all flight line Orientations East – West except for
offshore.</span></p>
<p class="MsoNormal"><span style="color:rgb(31,73,125)"> </span></p>
<p class="MsoNormal"><span style="color:rgb(31,73,125)">Im
afraid though that GPS just wasn’t a thing when these
images where captured. We have been looking at reverse
geotagging the Images, that is we know there
location…ish and we can convert them to jpegs with
EXIF values assigned in theory.</span></p>
<p class="MsoNormal"><span style="color:rgb(31,73,125)">Though
the biggest issue is, in talking on the guys on the
Open Drone Mapper forum, our overlaps aren’t
sufficient for SFM, so an automated process will be
out of the question.
</span></p>
<p class="MsoNormal"><span style="color:rgb(31,73,125)">Once
again, thanks for getting back, if you can think of
anything else, please let me know.</span></p>
<p class="MsoNormal"><span style="color:rgb(31,73,125)">Regards,</span></p>
<p class="MsoNormal"><span style="color:rgb(31,73,125)"><br>
Richard</span></p>
<p class="MsoNormal"><span style="color:rgb(31,73,125)"> </span></p>
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——</span><br>
<span
style="font-family:Arial,sans-serif;font-weight:bold;color:rgb(0,77,68)">Richard
McDonnell MSc GIS, FME Certified Professional</span><br>
<span
style="font-family:Arial,sans-serif;color:rgb(0,77,68)"><i>FRM
Data Management</i></span><br>
<br>
<span
style="font-family:Arial,sans-serif;color:rgb(0,77,68)">——</span><br>
<span
style="font-family:Arial,sans-serif;font-weight:bold;color:rgb(0,77,68)">Oifig
na nOibreacha Poiblí</span><br>
<span
style="font-family:Arial,sans-serif;color:rgb(0,77,68)">Office
of Public Works</span><br>
<br>
<span
style="font-family:Arial,sans-serif;font-weight:bold;color:rgb(86,81,72)">Sráid
Jonathan Swift, Baile Átha Troim, Co na Mí, C15
NX36
</span><br>
<span
style="font-family:Arial,sans-serif;color:rgb(86,81,72)">Jonathan
Swift Street, Trim, Co Meath, C15 NX36</span><br>
<span
style="font-family:Arial,sans-serif;color:rgb(86,81,72)">——</span><br>
<span
style="font-family:Arial,sans-serif;color:rgb(86,81,72)">M
+353 87 688 5964 T +353 46 942 2409</span><br>
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<p class="MsoNormal"><b><span lang="EN-US">From:</span></b><span
lang="EN-US"> Qgis-user <<a
href="mailto:qgis-user-bounces@lists.osgeo.org"
target="_blank" moz-do-not-send="true"
class="moz-txt-link-freetext">qgis-user-bounces@lists.osgeo.org</a>>
<b>On Behalf Of </b>Kirk Schmidt<br>
<b>Sent:</b> 01 November 2021 12:59<br>
<b>To:</b> <a
href="mailto:qgis-user@lists.osgeo.org"
target="_blank" moz-do-not-send="true"
class="moz-txt-link-freetext">qgis-user@lists.osgeo.org</a><br>
<b>Subject:</b> Re: [Qgis-user] Batch Aerial
Imagery GeoReferencing</span></p>
</div>
</div>
<p class="MsoNormal"> </p>
<p>Hi Richard:<span style="font-size:12pt"></span></p>
<p>You would require a couple of things:</p>
<p>1) Camera interior orientation which would include
the lens calibration</p>
<p>2) exterior orientation which would include precise
coordinate at time of exposure as well as the pitch,
roll and yaw of the camera.</p>
<p>3) the offsets from the camera film or sensor center
to the center of the aircraft gps antenna.</p>
<p>4) an accurate DEM or your target area</p>
<p>If you have the above data, you can autoreference
your images.</p>
<p>If the images have a high endlap and sidelap, you
could use commercial software such as Pix4D or Global
Mapper to orthorectify the images based on structure
from motion. Check into drone orthorectification
software.</p>
<p>Kirk</p>
<p> </p>
<p> </p>
<div>
<p class="MsoNormal">On 10/29/2021 9:13 AM, Richard
McDonnell wrote:</p>
</div>
<blockquote style="margin-top:5pt;margin-bottom:5pt">
<p class="MsoNormal">Afternoon all,</p>
<p class="MsoNormal">I have access to over 6000 Aerial
Images covering Ireland, we also have scans of the
Flight Paths and Image Orientation and Extents
(Scans from Paper Maps)</p>
<p class="MsoNormal">What I was wondering is if there
is a way to Batch Georeference all of these Images?</p>
<p class="MsoNormal">Any Ideas, help, guidance
welcome. I have thought about maybe even reverse
engineering the Flight Plan, then using OpenDroneMap
to georeference the Images.</p>
<p class="MsoNormal">Regards & Thanks,</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">Richard McDonnell</p>
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——</span></b><span
style="font-size:9pt;font-family:Arial,sans-serif;color:rgb(0,77,68)"><br>
<b>Richard McDonnell MSc GIS, FME
Certified Professional</b><br>
<i>FRM Data Management</i><br>
<br>
——<br>
<b>Oifig na nOibreacha Poiblí</b><br>
Office of Public Works<br>
<br>
</span><b><span
style="font-size:9pt;font-family:Arial,sans-serif;color:rgb(86,81,72)">Sráid
Jonathan Swift, Baile Átha Troim, Co na
Mí, C15 NX36
</span></b><span
style="font-size:9pt;font-family:Arial,sans-serif;color:rgb(0,77,68)"><br>
</span><span
style="font-size:9pt;font-family:Arial,sans-serif;color:rgb(86,81,72)">Jonathan
Swift Street, Trim, Co Meath, C15 NX36</span><span
style="font-size:9pt;font-family:Arial,sans-serif;color:rgb(0,77,68)"><br>
</span><span
style="font-size:9pt;font-family:Arial,sans-serif;color:rgb(86,81,72)">——</span><span
style="font-size:9pt;font-family:Arial,sans-serif;color:rgb(0,77,68)"><br>
</span><span
style="font-size:9pt;font-family:Arial,sans-serif;color:rgb(86,81,72)">M
+353 87 688 5964 T +353 46 942 2409</span><span
style="font-size:9pt;font-family:Arial,sans-serif;color:rgb(0,77,68)"><br>
</span><a href="https://gov.ie/opw"
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<br>
——<br>
To send me files larger than 30MB, please
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<pre>Kirk Schmidt, MScF, BScF, RPF</pre>
<pre>General Manager</pre>
<pre>Nortek Resource Solutions Inc.</pre>
<pre>26 Church Road</pre>
<pre>Sutherlands River, NS</pre>
<pre>B0K 1W0</pre>
<pre>Tel (902) 922.3607</pre>
<pre>Email: <a href="mailto:kirk@nortekresources.com" target="_blank" moz-do-not-send="true" class="moz-txt-link-freetext">kirk@nortekresources.com</a></pre>
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<pre class="moz-signature" cols="72">--
Kirk Schmidt, MScF, BScF, RPF
General Manager
Nortek Resource Solutions Inc.
26 Church Road
Sutherlands River, NS
B0K 1W0
Tel (902) 922.3607
Email: <a class="moz-txt-link-abbreviated" href="mailto:kirk@nortekresources.com">kirk@nortekresources.com</a>
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