Hi Andrew
You noticed, that the last job for Congo had a lot different offsets,
even in 1 job area there is different offset.
Regars
Norman (Divjo)
After several days of wrangling with QGIS to properly orthorectify
some Nextview imagery we got for the Congo, the job is finally set up
and ready to be worked on.
Please pay special attention to the instructions on this one. Make
sure you read and understand the all the info on the "Description" and
"Workflow" tabs in the task manager. There are two sets of imagery,
the black and white one should be used for creating and aligning
objects, the color one is a bit newer and should be used as a final
check in the validation step to update for any changes which occurred
since the black and white image was taken. Also note that because
there is a lack of traces or existing data in this area, the images
are not perfectly orthorectified so there will be some error in
position which changes as you move across the image. The error should
be fairly small though (I estimate 10 to 15 meters for most areas) so
aligning to the black and white image is ok. The only exception to
this is along the eastern edge where there is already high res Bing
imagery which is probably better aligned and data in this region
should be aligned to that image.
Thank you to user JGC for helping me get the imagery rectified and for
setting up the tileserver afterwards.
Here is the link to the task manager job.
http://tasks.hotosm.org/job/212
-AndrewBuck
_______________________________________________
HOT mailing list
HOT@openstreetmap.org
http://lists.openstreetmap.org/listinfo/hot
--
--
--
Günstige Flüge Weltweit
Individual- und Gruppenreisen nach Indien und China
Laxmi Reisen e.K.
Bornstr. 18
20146 Hamburg
Tel: 0049 +40 416 22 814
WEB: www.laxmi-reisen.de
Email: i...@laxmi-reisen.de
Inhaber: Norman Rathmann
_______________________________________________
HOT mailing list
HOT@openstreetmap.org
http://lists.openstreetmap.org/listinfo/hot
