[Qgis-user] Batch Aerial Imagery GeoReferencing

[Alexis R.L.]

Greetings,

I'm sure there is a way to use the available flight data to generate
approximate points for each images based on the flight paths and then just
use that to georeference them. It would require some scripting but I don't
see what would prevent any of it if the metadata is reliable.

And option would be to create the coordinates and georeference them with
grass directly as the georeferencer plugin is just an interface as far as I
remember.And there are no bindings for it.

You can contact me as I may be willing to look into this in my free time,
if you want.

Thanks,

Alex


Le mer. 3 nov. 2021 à 06:27, Richard McDonnell <richard.mcdonnell at opw.ie> a
écrit :

> Hi Kirk and Charles,
>
> Thanks for your reply. This is what we know…
>
>
>
> CAMERA:                            Wild RC8 and RC10 152mm Focal Length.
>
> ALTITUDE:                          4,560m with Block Adjustments for
> Mountainous areas
>
> IMAGE OVERLAP:             60% along track 25% side lap and all flight
> line Orientations East – West except for offshore.
>
>
>
> 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.
>
> 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.
>
> Once again, thanks for getting back, if you can think of anything else,
> please let me know.
>
> Regards,
>
>
> Richard
>
>
>
> ——
> Richard McDonnell MSc GIS, FME Certified Professional
> *FRM Data Management*
>
> ——
> Oifig na nOibreacha Poiblí
> Office of Public Works
>
> Sráid Jonathan Swift, Baile Átha Troim, Co na Mí, C15 NX36
> Jonathan Swift Street, Trim, Co Meath, C15 NX36
> ——
> M +353 87 688 5964 T +353 46 942 2409
> https://gov.ie/opw
>
> ——
> To send me files larger than 30MB, please use the link below
> https://filetransfer.opw.ie/filedrop/richard.mcdonnell@opw.ie
>
> Email Disclaimer:
> https://www.gov.ie/en/organisation-information/439daf-email-disclaimer/
>
> *From:* Qgis-user <qgis-user-bounces at lists.osgeo.org> *On Behalf Of *Kirk
> Schmidt
> *Sent:* 01 November 2021 12:59
> *To:* qgis-user at lists.osgeo.org
> *Subject:* Re: [Qgis-user] Batch Aerial Imagery GeoReferencing
>
>
>
> Hi Richard:
>
> You would require a couple of things:
>
> 1) Camera interior orientation which would include the lens calibration
>
> 2) exterior orientation which would include precise coordinate at time of
> exposure as well as the pitch, roll and yaw of the camera.
>
> 3) the offsets from the camera film or sensor center to the center of the
> aircraft gps antenna.
>
> 4) an accurate DEM or your target area
>
> If you have the above data, you can autoreference your images.
>
> 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.
>
> Kirk
>
>
>
>
>
> On 10/29/2021 9:13 AM, Richard McDonnell wrote:
>
> Afternoon all,
>
> 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)
>
> What I was wondering is if there is a way to Batch Georeference all of
> these Images?
>
> Any Ideas, help, guidance welcome. I have thought about maybe even reverse
> engineering the Flight Plan, then using OpenDroneMap to georeference the
> Images.
>
> Regards & Thanks,
>
>
>
> Richard McDonnell
>
>
> * ——*
> *Richard McDonnell MSc GIS, FME Certified Professional*
> *FRM Data Management*
>
> ——
> *Oifig na nOibreacha Poiblí*
> Office of Public Works
>
> *Sráid Jonathan Swift, Baile Átha Troim, Co na Mí, C15 NX36 *
> Jonathan Swift Street, Trim, Co Meath, C15 NX36
> ——
> M +353 87 688 5964 T +353 46 942 2409
> https://gov.ie/opw
>
> ——
> To send me files larger than 30MB, please use the link below
> https://filetransfer.opw.ie/filedrop/richard.mcdonnell@opw.ie
>
> Email Disclaimer:
> https://www.gov.ie/en/organisation-information/439daf-email-disclaimer/
>
>
>
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> --
>
> Kirk Schmidt, MScF, BScF, RPF
>
> General Manager
>
> Nortek Resource Solutions Inc.
>
> 26 Church Road
>
> Sutherlands River, NS
>
> B0K 1W0
>
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>
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>
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>
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