[Qgis-user] Batch Aerial Imagery GeoReferencing

[Richard McDonnell]

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.

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