[OSGeo Africa] Georeferencing or overlaying old aerial photograph with cadastre

[Chris]

    Morning Aslam ,

    Georeferencing by common points

    I believe you guys ( NGI / SG )  have a more advanced way of doing this 
    whereby one ends up with a proper accurate geo-refeerenced orthophoto 
    ( orthorectified )

    I am curious ?

    CM



On 16 Nov 2016 at 11:06, Aslam Parker wrote:

> Hi Jeff
 
> My colleague Muhammed Deal <Muhammed.Deal at drdlr.gov.za> has a tutorial
> that he can send you, we do this all the time on QGIS.
 
> Please take note that if you do a georeferencing by common points, this
> amounts to  rubbersheet/transformation and does not create an
> orthorectified imagery and the georeferencing will be approximate.


 
> From: Africa [mailto:africa-bounces at lists.osgeo.org] On Behalf Of Jeff
> Ngwane Sent: 16 November 2016 12:17 PM To: Africa local chapter
> discussions Subject: [OSGeo Africa] Georeferencing or overlaying old
> aerial photograph with cadastre
 
> Hi,
 
> How to correctly georeference old aerial photograph (i.e 1972) for purpose
> of being aligned with up to date cadastre on QGIS recent versions? I have
> been trying but in vain. Please help me.
 
> Thank
 
> Jeff