Re: [HOT] Spot-6 images of Guinée / Northern Liberia available, job 489
Hi,
A fourth SPOT-6 image - some 60 km wide at 1.5 m resolution, taken on
2013-04-14 - donated by Airbus Defence Space, GEO-Intelligence (ex
Astrium Geo-Information Services, ex Spot Image), that had been hold by
Quality Control, is now available.
A new TM job has been set up to map from it, and extend job 489 :
http://tasks.hotosm.org/job/503
Best wishes,
Jean-Guilhem
--
Bonjour,
Une quatrième image SPOT-6 - environ 60 km de large à 1,5 m de
résolution, prise le 14/04/2013 - offerte par Airbus Defence Space,
GEO-Intelligence (ex Astrium Geo-Information Services, ex Spot Image),
qui avait été retenue au Contrôle Qualité, est maintenant disponible.
Un nouveau job du gestionnaire de tâches a été défini pour cartographier
la zone couverte, et étendre le job 489 :
http://tasks.hotosm.org/job/503
Il y est demandé de cartographier les routes et chemins, les villages,
rivières, et, dans la mesure où vous parvenez à les distinguer, les
bâtiments.
Deux versions de l'image sont disponibles. L'une en couleurs
naturelles classiques (rouge-vert-bleu), et l'autre où le canal rouge
est remplacé par le canal proche-infrarouge, (nommée NIR pour Near
InfraRed en anglais).
Dans les zones de chevauchement avec les images précédentes du job 489
(http://tasks.hotosm.org/job/489), suivant la position des nuages, l'une
ou l'autre couche d'imagerie peut mieux convenir.
N'hésitez pas à subdiviser certaines tâches si vous souhaitez disposer
de plus de temps, par exemple pour numériser les bâtiments.
Bien cordialement,
Jean-Guilhem
Le 04/04/2014 19:41, Jean-Guilhem Cailton a écrit :
Yes Andrew, as only one URL can be linked from a job in the TM for
one-clic-adding in editor, it might be better to refer to the NIR
layer there.
Of course, you may access the Spot-6 layers only after having accepted
the Astrium/OSM-FR licence (http://tasks.hotosm.org/license/6)
(Full licence text is there:
http://imagery.openstreetmap.fr/astrium-geo/Web%20License%20for%20Non-Commercial%20Use%20with%20OSM.pdf)
Best,
Jean-Guilhem
Le 04/04/2014 18:48, Andrew Buck a écrit :
And of course I copied in the wron URL to the message, here is the
correct one. :)
tms[22]:http://imagery.openstreetmap.fr/tms/1.0.0/guinee_liberia_spot6_nir/{zoom}/{x}/{y}
On 04/04/2014 11:45 AM, Andrew Buck wrote:
This second spot layer is really useful, not only roads and
vegetaion are much easier to see, but the buildings are easier to
see as well. I highly recommend using this one. Here is the
address below.
tms[22]:http://imagery.openstreetmap.fr/tms/1.0.0/guinee_liberia_spot6/{zoom}/{x}/{y}
I will add this address to the task manager as well, do we want to
set the main imagery link to the NIR band, Jean?
-AndrewBuck
On 04/04/2014 11:16 AM, Jean-Guilhem Cailton wrote:
Hi,
Another version of the Spot-6 layer, with the near-infrared band
used as red in red-green-blue (instead of the natural red
band) is available.
It provides a nice view of vegetation (in red), and thus also
makes it easy to see residential areas and rivers.
To add it, replace spot6 by spot6_nir in the URL given in
http://tasks.hotosm.org/job/489
Best wishes,
Jean-Guilhem
___
HOT mailing list
HOT@openstreetmap.org
https://lists.openstreetmap.org/listinfo/hot
Re: [HOT] Spot-6 images of Guinée / Northern Liberia available, job 489
As always a thorough thank you Jean-guilhem for this work around imagery
from the relation to astrium geo to the processing and hosting of the
imagery
++
Nico
On Mon, Apr 14, 2014 at 5:47 PM, Jean-Guilhem Cailton j...@arkemie.comwrote:
Hi,
A fourth SPOT-6 image - some 60 km wide at 1.5 m resolution, taken on
2013-04-14 - donated by Airbus Defence Space, GEO-Intelligence (ex
Astrium Geo-Information Services, ex Spot Image), that had been hold by
Quality Control, is now available.
A new TM job has been set up to map from it, and extend job 489 :
http://tasks.hotosm.org/job/503
Best wishes,
Jean-Guilhem
--
Bonjour,
Une quatrième image SPOT-6 - environ 60 km de large à 1,5 m de résolution,
prise le 14/04/2013 - offerte par Airbus Defence Space, GEO-Intelligence
(ex Astrium Geo-Information Services, ex Spot Image), qui avait été retenue
au Contrôle Qualité, est maintenant disponible.
Un nouveau job du gestionnaire de tâches a été défini pour cartographier
la zone couverte, et étendre le job 489 :
http://tasks.hotosm.org/job/503
Il y est demandé de cartographier les routes et chemins, les villages,
rivières, et, dans la mesure où vous parvenez à les distinguer, les
bâtiments.
Deux versions de l'image sont disponibles. L'une en couleurs naturelles
classiques (rouge-vert-bleu), et l'autre où le canal rouge est remplacé
par le canal proche-infrarouge, (nommée NIR pour Near InfraRed en
anglais).
Dans les zones de chevauchement avec les images précédentes du job 489 (
http://tasks.hotosm.org/job/489), suivant la position des nuages, l'une
ou l'autre couche d'imagerie peut mieux convenir.
N'hésitez pas à subdiviser certaines tâches si vous souhaitez disposer de
plus de temps, par exemple pour numériser les bâtiments.
Bien cordialement,
Jean-Guilhem
Le 04/04/2014 19:41, Jean-Guilhem Cailton a écrit :
Yes Andrew, as only one URL can be linked from a job in the TM for
one-clic-adding in editor, it might be better to refer to the NIR layer
there.
Of course, you may access the Spot-6 layers only after having accepted the
Astrium/OSM-FR licence (http://tasks.hotosm.org/license/6)
(Full licence text is there:
http://imagery.openstreetmap.fr/astrium-geo/Web%20License%20for%20Non-Commercial%20Use%20with%20OSM.pdf
)
Best,
Jean-Guilhem
Le 04/04/2014 18:48, Andrew Buck a écrit :
And of course I copied in the wron URL to the message, here is the
correct one. :)
tms[22]:
http://imagery.openstreetmap.fr/tms/1.0.0/guinee_liberia_spot6_nir/
{zoom}/{x}/{y}
On 04/04/2014 11:45 AM, Andrew Buck wrote:
This second spot layer is really useful, not only roads and
vegetaion are much easier to see, but the buildings are easier to
see as well. I highly recommend using this one. Here is the
address below.
tms[22]:http://imagery.openstreetmap.fr/tms/1.0.0/guinee_liberia_spot6/
{zoom}/{x}/{y}
I will add this address to the task manager as well, do we want to
set the main imagery link to the NIR band, Jean?
-AndrewBuck
On 04/04/2014 11:16 AM, Jean-Guilhem Cailton wrote:
Hi,
Another version of the Spot-6 layer, with the near-infrared band
used as red in red-green-blue (instead of the natural red
band) is available.
It provides a nice view of vegetation (in red), and thus also
makes it easy to see residential areas and rivers.
To add it, replace spot6 by spot6_nir in the URL given in
http://tasks.hotosm.org/job/489
Best wishes,
Jean-Guilhem
___
HOT mailing list
HOT@openstreetmap.org
https://lists.openstreetmap.org/listinfo/hot
--
Nicolas Chavent
Humanitarian OpenStreetMap Team
http://hot.openstreetmap.org/
Mobile (FRA): +33 (0)6 52 40 78 20
Email: nicolas.chav...@hotosm.org
Email: nicolas.chav...@gmail.com
Skype: c_nicolas
Twitter: nicolas_chavent
___
HOT mailing list
HOT@openstreetmap.org
https://lists.openstreetmap.org/listinfo/hot
Re: [HOT] Spot-6 images of Guinée / Northern Liberia available, job 489
Hi Jean-Guilhem, thanks for the explanations and the helpful link! As always there are a lot of treasures you only need to know where to look... (but not easy to find the layers list with my limited knowledge of French...) Allow me a wish: to see such meta-information on the wiki page of an activation in an webmap (but cant do that by my own). cheers, Michael Am 05.04.2014 22:17, schrieb Jean-Guilhem Cailton: A better answer to your question : on VISOV's Umap used to track news about the Ebola outbreak, boundaries for high resolution imagery layers can be switched on and off (in the layer menu, icon is near top left) (grouped by when they where made available) : http://umap.openstreetmap.fr/fr/map/esov-suivi-epidemie-ebola_6356#10/8.5640/-9.7806 ___ HOT mailing list HOT@openstreetmap.org https://lists.openstreetmap.org/listinfo/hot
Re: [HOT] Spot-6 images of Guinée / Northern Liberia available, job 489
Again and one more time, a huge thanks for your continued work around imagery Jean-Guilhem ++ Nico On Mon, Apr 7, 2014 at 8:36 PM, Michael Judex m.ju...@gmx.de wrote: Hi Jean-Guilhem, thanks for the explanations and the helpful link! As always there are a lot of treasures you only need to know where to look... (but not easy to find the layers list with my limited knowledge of French...) Allow me a wish: to see such meta-information on the wiki page of an activation in an webmap (but cant do that by my own). cheers, Michael Am 05.04.2014 22:17, schrieb Jean-Guilhem Cailton: A better answer to your question : on VISOV's Umap used to track news about the Ebola outbreak, boundaries for high resolution imagery layers can be switched on and off (in the layer menu, icon is near top left) (grouped by when they where made available) : http://umap.openstreetmap.fr/fr/map/esov-suivi-epidemie- ebola_6356#10/8.5640/-9.7806 ___ HOT mailing list HOT@openstreetmap.org https://lists.openstreetmap.org/listinfo/hot -- Nicolas Chavent Humanitarian OpenStreetMap Team http://hot.openstreetmap.org/ Mobile (FRA): +33 (0)6 52 40 78 20 Email: nicolas.chav...@hotosm.org Email: nicolas.chav...@gmail.com Skype: c_nicolas Twitter: nicolas_chavent ___ HOT mailing list HOT@openstreetmap.org https://lists.openstreetmap.org/listinfo/hot
Re: [HOT] Spot-6 images of Guinée / Northern Liberia available, job 489
Great. Thanks both. Pierre De : Jean-Guilhem Cailton j...@arkemie.com À : Michael Judex m.ju...@gmx.de; hot@openstreetmap.org Envoyé le : Vendredi 4 avril 2014 22h10 Objet : Re: [HOT] Spot-6 images of Guinée / Northern Liberia available, job 489 Hi Michael, The existing roads were probably based on Landsat, the geometric accuracy of which is lower than Spot-6. So if you feel that adjustment is needed, the pre-existing road should probably be adjusted. This would also make it possible to have a consistent geometry for tracing streets and buildings within villages and towns. Best wishes, Jean-Guilhem Le 04/04/2014 21:05, Michael Judex a écrit : Dear all, I'm just starting to map roads etc. for this job with the SPOT-6 imagery in NIR. The already existing major roads have a significant offset to the satellite image (e.g. major road from Macenta to Voinjama). Should the offset be corrected or is the geometric correction of the SPOT images not sufficient? thanks, Michael Am 04.04.2014 15:26, schrieb Jean-Guilhem Cailton: Hi, Airbus Defence and Space, Geo-Intelligence has donated Spot-6 images, acquired between 2013-10-13 and 2013-12-11, that cover a large part of the area of the border between Northern Liberia and Southern Guinea, including the towns of Voinjama and Kolahun in Liberia, as well as the cities of Guéckédou and Macenta in Guinée, and their surroundings. Job 489 has been set up on the Tasking Manager: http://tasks.hotosm.org/job/489 For the cities of Guéckédou and Macenta, where higher resolution Pleiades images are available and that were already mapped (jobs 469 and 471), it is better to keep using the Pleiades images as geometrical reference, as they have better accuracy (6.5 m CE 90 without GCPs). Use source=Spot-6, Airbus Best wishes, Jean-Guilhem ___ HOT mailing list HOT@openstreetmap.org https://lists.openstreetmap.org/listinfo/hot ___ HOT mailing list HOT@openstreetmap.org https://lists.openstreetmap.org/listinfo/hot ___ HOT mailing list HOT@openstreetmap.org https://lists.openstreetmap.org/listinfo/hot___ HOT mailing list HOT@openstreetmap.org https://lists.openstreetmap.org/listinfo/hot
Re: [HOT] Spot-6 images of Guinée / Northern Liberia available, job 489
Merci Fofana, et bons cartoparties a tous. Pierre De : FOFANA BAZO BAGNOUMANA fofana.13b...@gmail.com À : Jean-Guilhem Cailton j...@arkemie.com Cc : hot@openstreetmap.org hot@openstreetmap.org Envoyé le : Vendredi 4 avril 2014 18h23 Objet : Re: [HOT] Spot-6 images of Guinée / Northern Liberia available, job 489 nous voyons à travers ces éléments comment le projet hot évolue et il vraiment important de souligner ces aspects. l'acquisition d'imageries de telles niveaux de précisions est d'un grand intérêt pour la cartographie de crise. Toutes mes félicitations à l'équipe qui a rendue cela possible, et que les mappers en fassent un très bon usage. bravo à tous. Fofana pour osm_BF 2014-04-04 16:16 GMT+00:00 Jean-Guilhem Cailton j...@arkemie.com: Hi, Another version of the Spot-6 layer, with the near-infrared band used as red in red-green-blue (instead of the natural red band) is available. It provides a nice view of vegetation (in red), and thus also makes it easy to see residential areas and rivers. To add it, replace spot6 by spot6_nir in the URL given in http://tasks.hotosm.org/job/489 Best wishes, Jean-Guilhem Le 04/04/2014 15:26, Jean-Guilhem Cailton a écrit : Hi, Airbus Defence and Space, Geo-Intelligence has donated Spot-6 images, acquired between 2013-10-13 and 2013-12-11, that cover a large part of the area of the border between Northern Liberia and Southern Guinea, including the towns of Voinjama and Kolahun in Liberia, as well as the cities of Guéckédou and Macenta in Guinée, and their surroundings. Job 489 has been set up on the Tasking Manager: http://tasks.hotosm.org/job/489 For the cities of Guéckédou and Macenta, where higher resolution Pleiades images are available and that were already mapped (jobs 469 and 471), it is better to keep using the Pleiades images as geometrical reference, as they have better accuracy (6.5 m CE 90 without GCPs). Use source=Spot-6, Airbus Best wishes, Jean-Guilhem ___ HOT mailing list HOT@openstreetmap.org https://lists.openstreetmap.org/listinfo/hot ___ HOT mailing list HOT@openstreetmap.org https://lists.openstreetmap.org/listinfo/hot -- Fofana Bagnoumana Bazo Etudiant en Master II (Géographie, Gestion des Ressources Naturelles) A l'université de Ouagadougou ___ HOT mailing list HOT@openstreetmap.org https://lists.openstreetmap.org/listinfo/hot___ HOT mailing list HOT@openstreetmap.org https://lists.openstreetmap.org/listinfo/hot
Re: [HOT] Spot-6 images of Guinée / Northern Liberia available, job 489
Thanks for the answer! I've another related question/issue: There is a systematic geometric shift between SPOT-6 images of task 489 (Guinée / Northern Liberia border area) and Pleiades-1A images of task 471 (only for the town of Macenta, which is included geographically in 489). I think that an offset of 10.44; 14.24 (in JOSM) for the SPOT-6 images is good to have a proper fit to the Pleiades images. So my questions are: - is the geometric accuracy of the Pleiades better than SPOT-6? (I assume yes) - do we then have a systematic geometeric distortion in task 489 for the edits that relied only on the SPOT-6 imagery? If yes can we correct this? (maybe the the only way to really fix offsets between different images are GPS ground control points...) I think it could be helpful to have an instant overview of ALL available imagery for a specific area. If a mapper opens a task only the dedicated imagery is listed in the task instructions. Is there a simple way to achieve this? Thanks for your support! Michael Am 05.04.2014 11:19, schrieb Pierre Béland: Great. Thanks both. Pierre *De :* Jean-Guilhem Cailton j...@arkemie.com *À :* Michael Judex m.ju...@gmx.de; hot@openstreetmap.org *Envoyé le :* Vendredi 4 avril 2014 22h10 *Objet :* Re: [HOT] Spot-6 images of Guinée / Northern Liberia available, job 489 Hi Michael, The existing roads were probably based on Landsat, the geometric accuracy of which is lower than Spot-6. So if you feel that adjustment is needed, the pre-existing road should probably be adjusted. This would also make it possible to have a consistent geometry for tracing streets and buildings within villages and towns. Best wishes, Jean-Guilhem ___ HOT mailing list HOT@openstreetmap.org https://lists.openstreetmap.org/listinfo/hot
Re: [HOT] Spot-6 images of Guinée / Northern Liberia available, job 489
Hi Michael, Le 05/04/2014 21:25, Michael Judex a écrit : Thanks for the answer! I've another related question/issue: There is a systematic geometric shift between SPOT-6 images of task 489 (Guinée / Northern Liberia border area) and Pleiades-1A images of task 471 (only for the town of Macenta, which is included geographically in 489). I think that an offset of 10.44; 14.24 (in JOSM) for the SPOT-6 images is good to have a proper fit to the Pleiades images. So my questions are: - is the geometric accuracy of the Pleiades better than SPOT-6? (I assume yes) Yes, Pleiades has 6.5 m CE90 location accuracy, and SPOT-6 10 m CE90 location accuracy. - do we then have a systematic geometeric distortion in task 489 for the edits that relied only on the SPOT-6 imagery? If yes can we correct this? (maybe the the only way to really fix offsets between different images are GPS ground control points...) The shift in Macenta doesn't mean that the same offset there would be suitable for the whole SPOT-6 imagery. It is likely suitable only for the area near Macenta. Geometric distortions are for example likely to depend on relief, in a way more complex than a simple uniform offset could fix. I think it could be helpful to have an instant overview of ALL available imagery for a specific area. If a mapper opens a task only the dedicated imagery is listed in the task instructions. Is there a simple way to achieve this? You can simply overlay the Pleiades imagery for one of the Pleiades jobs (469 or 471 for Guéckédou or Macenta - both contain the same Pleiades layer, with Kissidougou too ; and the Pleiades imagery layer for job http://tasks.hotosm.org/job/487 for Foya contains the 4 Pleiades images) to the SPOT-6 imagery of job http://tasks.hotosm.org/job/489. And switch them on and off to compare (which is what you probably did, explaining here for the others). A better answer to your question : on VISOV's Umap used to track news about the Ebola outbreak, boundaries for high resolution imagery layers can be switched on and off (in the layer menu, icon is near top left) (grouped by when they where made available) : http://umap.openstreetmap.fr/fr/map/esov-suivi-epidemie-ebola_6356#10/8.5640/-9.7806 Thanks for your support! Michael Thanks for your questions, and for your mapping! Jean-Guilhem Am 05.04.2014 11:19, schrieb Pierre Béland: Great. Thanks both. Pierre *De :* Jean-Guilhem Cailton j...@arkemie.com *À :* Michael Judex m.ju...@gmx.de; hot@openstreetmap.org *Envoyé le :* Vendredi 4 avril 2014 22h10 *Objet :* Re: [HOT] Spot-6 images of Guinée / Northern Liberia available, job 489 Hi Michael, The existing roads were probably based on Landsat, the geometric accuracy of which is lower than Spot-6. So if you feel that adjustment is needed, the pre-existing road should probably be adjusted. This would also make it possible to have a consistent geometry for tracing streets and buildings within villages and towns. Best wishes, Jean-Guilhem ___ HOT mailing list HOT@openstreetmap.org https://lists.openstreetmap.org/listinfo/hot
[HOT] Spot-6 images of Guinée / Northern Liberia available, job 489
Hi, Airbus Defence and Space, Geo-Intelligence has donated Spot-6 images, acquired between 2013-10-13 and 2013-12-11, that cover a large part of the area of the border between Northern Liberia and Southern Guinea, including the towns of Voinjama and Kolahun in Liberia, as well as the cities of Guéckédou and Macenta in Guinée, and their surroundings. Job 489 has been set up on the Tasking Manager: http://tasks.hotosm.org/job/489 For the cities of Guéckédou and Macenta, where higher resolution Pleiades images are available and that were already mapped (jobs 469 and 471), it is better to keep using the Pleiades images as geometrical reference, as they have better accuracy (6.5 m CE 90 without GCPs). Use source=Spot-6, Airbus Best wishes, Jean-Guilhem ___ HOT mailing list HOT@openstreetmap.org https://lists.openstreetmap.org/listinfo/hot
Re: [HOT] Spot-6 images of Guinée / Northern Liberia available, job 489
Hi, Another version of the Spot-6 layer, with the near-infrared band used as red in red-green-blue (instead of the natural red band) is available. It provides a nice view of vegetation (in red), and thus also makes it easy to see residential areas and rivers. To add it, replace spot6 by spot6_nir in the URL given in http://tasks.hotosm.org/job/489 Best wishes, Jean-Guilhem Le 04/04/2014 15:26, Jean-Guilhem Cailton a écrit : Hi, Airbus Defence and Space, Geo-Intelligence has donated Spot-6 images, acquired between 2013-10-13 and 2013-12-11, that cover a large part of the area of the border between Northern Liberia and Southern Guinea, including the towns of Voinjama and Kolahun in Liberia, as well as the cities of Guéckédou and Macenta in Guinée, and their surroundings. Job 489 has been set up on the Tasking Manager: http://tasks.hotosm.org/job/489 For the cities of Guéckédou and Macenta, where higher resolution Pleiades images are available and that were already mapped (jobs 469 and 471), it is better to keep using the Pleiades images as geometrical reference, as they have better accuracy (6.5 m CE 90 without GCPs). Use source=Spot-6, Airbus Best wishes, Jean-Guilhem ___ HOT mailing list HOT@openstreetmap.org https://lists.openstreetmap.org/listinfo/hot ___ HOT mailing list HOT@openstreetmap.org https://lists.openstreetmap.org/listinfo/hot
Re: [HOT] Spot-6 images of Guinée / Northern Liberia available, job 489
nous voyons à travers ces éléments comment le projet hot évolue et il vraiment important de souligner ces aspects. l'acquisition d'imageries de telles niveaux de précisions est d'un grand intérêt pour la cartographie de crise. Toutes mes félicitations à l'équipe qui a rendue cela possible, et que les mappers en fassent un très bon usage. bravo à tous. Fofana pour osm_BF 2014-04-04 16:16 GMT+00:00 Jean-Guilhem Cailton j...@arkemie.com: Hi, Another version of the Spot-6 layer, with the near-infrared band used as red in red-green-blue (instead of the natural red band) is available. It provides a nice view of vegetation (in red), and thus also makes it easy to see residential areas and rivers. To add it, replace spot6 by spot6_nir in the URL given in http://tasks.hotosm.org/job/489 Best wishes, Jean-Guilhem Le 04/04/2014 15:26, Jean-Guilhem Cailton a écrit : Hi, Airbus Defence and Space, Geo-Intelligence has donated Spot-6 images, acquired between 2013-10-13 and 2013-12-11, that cover a large part of the area of the border between Northern Liberia and Southern Guinea, including the towns of Voinjama and Kolahun in Liberia, as well as the cities of Guéckédou and Macenta in Guinée, and their surroundings. Job 489 has been set up on the Tasking Manager: http://tasks.hotosm.org/job/489 For the cities of Guéckédou and Macenta, where higher resolution Pleiades images are available and that were already mapped (jobs 469 and 471), it is better to keep using the Pleiades images as geometrical reference, as they have better accuracy (6.5 m CE 90 without GCPs). Use source=Spot-6, Airbus Best wishes, Jean-Guilhem ___ HOT mailing list HOT@openstreetmap.org https://lists.openstreetmap.org/listinfo/hot ___ HOT mailing list HOT@openstreetmap.org https://lists.openstreetmap.org/listinfo/hot -- Fofana Bagnoumana Bazo Etudiant en Master II (Géographie, Gestion des Ressources Naturelles) A l'université de Ouagadougou ___ HOT mailing list HOT@openstreetmap.org https://lists.openstreetmap.org/listinfo/hot
Re: [HOT] Spot-6 images of Guinée / Northern Liberia available, job 489
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
This second spot layer is really useful, not only roads and vegetaion
are much easier to see, but the buildings are easier to see as well.
I highly recommend using this one. Here is the address below.
tms[22]:http://imagery.openstreetmap.fr/tms/1.0.0/guinee_liberia_spot6/{zoom}/{x}/{y}
I will add this address to the task manager as well, do we want to set
the main imagery link to the NIR band, Jean?
- -AndrewBuck
On 04/04/2014 11:16 AM, Jean-Guilhem Cailton wrote:
Hi,
Another version of the Spot-6 layer, with the near-infrared band
used as red in red-green-blue (instead of the natural red band)
is available.
It provides a nice view of vegetation (in red), and thus also makes
it easy to see residential areas and rivers.
To add it, replace spot6 by spot6_nir in the URL given in
http://tasks.hotosm.org/job/489
Best wishes,
Jean-Guilhem
-BEGIN PGP SIGNATURE-
Version: GnuPG v1.4.11 (GNU/Linux)
Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/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=Svbh
-END PGP SIGNATURE-
___
HOT mailing list
HOT@openstreetmap.org
https://lists.openstreetmap.org/listinfo/hot
Re: [HOT] Spot-6 images of Guinée / Northern Liberia available, job 489
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
And of course I copied in the wron URL to the message, here is the
correct one. :)
tms[22]:http://imagery.openstreetmap.fr/tms/1.0.0/guinee_liberia_spot6_nir/{zoom}/{x}/{y}
On 04/04/2014 11:45 AM, Andrew Buck wrote:
This second spot layer is really useful, not only roads and
vegetaion are much easier to see, but the buildings are easier to
see as well. I highly recommend using this one. Here is the
address below.
tms[22]:http://imagery.openstreetmap.fr/tms/1.0.0/guinee_liberia_spot6/{zoom}/{x}/{y}
I will add this address to the task manager as well, do we want to
set the main imagery link to the NIR band, Jean?
-AndrewBuck
On 04/04/2014 11:16 AM, Jean-Guilhem Cailton wrote:
Hi,
Another version of the Spot-6 layer, with the near-infrared band
used as red in red-green-blue (instead of the natural red
band) is available.
It provides a nice view of vegetation (in red), and thus also
makes it easy to see residential areas and rivers.
To add it, replace spot6 by spot6_nir in the URL given in
http://tasks.hotosm.org/job/489
Best wishes,
Jean-Guilhem
-BEGIN PGP SIGNATURE-
Version: GnuPG v1.4.11 (GNU/Linux)
Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/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=AH7A
-END PGP SIGNATURE-
___
HOT mailing list
HOT@openstreetmap.org
https://lists.openstreetmap.org/listinfo/hot
Re: [HOT] Spot-6 images of Guinée / Northern Liberia available, job 489
Yes Andrew, as only one URL can be linked from a job in the TM for
one-clic-adding in editor, it might be better to refer to the NIR
layer there.
Of course, you may access the Spot-6 layers only after having accepted
the Astrium/OSM-FR licence (http://tasks.hotosm.org/license/6)
(Full licence text is there:
http://imagery.openstreetmap.fr/astrium-geo/Web%20License%20for%20Non-Commercial%20Use%20with%20OSM.pdf)
Best,
Jean-Guilhem
Le 04/04/2014 18:48, Andrew Buck a écrit :
And of course I copied in the wron URL to the message, here is the
correct one. :)
tms[22]:http://imagery.openstreetmap.fr/tms/1.0.0/guinee_liberia_spot6_nir/{zoom}/{x}/{y}
On 04/04/2014 11:45 AM, Andrew Buck wrote:
This second spot layer is really useful, not only roads and
vegetaion are much easier to see, but the buildings are easier to
see as well. I highly recommend using this one. Here is the
address below.
tms[22]:http://imagery.openstreetmap.fr/tms/1.0.0/guinee_liberia_spot6/{zoom}/{x}/{y}
I will add this address to the task manager as well, do we want to
set the main imagery link to the NIR band, Jean?
-AndrewBuck
On 04/04/2014 11:16 AM, Jean-Guilhem Cailton wrote:
Hi,
Another version of the Spot-6 layer, with the near-infrared band
used as red in red-green-blue (instead of the natural red
band) is available.
It provides a nice view of vegetation (in red), and thus also
makes it easy to see residential areas and rivers.
To add it, replace spot6 by spot6_nir in the URL given in
http://tasks.hotosm.org/job/489
Best wishes,
Jean-Guilhem
___
HOT mailing list
HOT@openstreetmap.org
https://lists.openstreetmap.org/listinfo/hot
___
HOT mailing list
HOT@openstreetmap.org
https://lists.openstreetmap.org/listinfo/hot
Re: [HOT] Spot-6 images of Guinée / Northern Liberia available, job 489
Dear all, I'm just starting to map roads etc. for this job with the SPOT-6 imagery in NIR. The already existing major roads have a significant offset to the satellite image (e.g. major road from Macenta to Voinjama). Should the offset be corrected or is the geometric correction of the SPOT images not sufficient? thanks, Michael Am 04.04.2014 15:26, schrieb Jean-Guilhem Cailton: Hi, Airbus Defence and Space, Geo-Intelligence has donated Spot-6 images, acquired between 2013-10-13 and 2013-12-11, that cover a large part of the area of the border between Northern Liberia and Southern Guinea, including the towns of Voinjama and Kolahun in Liberia, as well as the cities of Guéckédou and Macenta in Guinée, and their surroundings. Job 489 has been set up on the Tasking Manager: http://tasks.hotosm.org/job/489 For the cities of Guéckédou and Macenta, where higher resolution Pleiades images are available and that were already mapped (jobs 469 and 471), it is better to keep using the Pleiades images as geometrical reference, as they have better accuracy (6.5 m CE 90 without GCPs). Use source=Spot-6, Airbus Best wishes, Jean-Guilhem ___ HOT mailing list HOT@openstreetmap.org https://lists.openstreetmap.org/listinfo/hot ___ HOT mailing list HOT@openstreetmap.org https://lists.openstreetmap.org/listinfo/hot
Re: [HOT] Spot-6 images of Guinée / Northern Liberia available, job 489
Hi Michael, The existing roads were probably based on Landsat, the geometric accuracy of which is lower than Spot-6. So if you feel that adjustment is needed, the pre-existing road should probably be adjusted. This would also make it possible to have a consistent geometry for tracing streets and buildings within villages and towns. Best wishes, Jean-Guilhem Le 04/04/2014 21:05, Michael Judex a écrit : Dear all, I'm just starting to map roads etc. for this job with the SPOT-6 imagery in NIR. The already existing major roads have a significant offset to the satellite image (e.g. major road from Macenta to Voinjama). Should the offset be corrected or is the geometric correction of the SPOT images not sufficient? thanks, Michael Am 04.04.2014 15:26, schrieb Jean-Guilhem Cailton: Hi, Airbus Defence and Space, Geo-Intelligence has donated Spot-6 images, acquired between 2013-10-13 and 2013-12-11, that cover a large part of the area of the border between Northern Liberia and Southern Guinea, including the towns of Voinjama and Kolahun in Liberia, as well as the cities of Guéckédou and Macenta in Guinée, and their surroundings. Job 489 has been set up on the Tasking Manager: http://tasks.hotosm.org/job/489 For the cities of Guéckédou and Macenta, where higher resolution Pleiades images are available and that were already mapped (jobs 469 and 471), it is better to keep using the Pleiades images as geometrical reference, as they have better accuracy (6.5 m CE 90 without GCPs). Use source=Spot-6, Airbus Best wishes, Jean-Guilhem ___ HOT mailing list HOT@openstreetmap.org https://lists.openstreetmap.org/listinfo/hot ___ HOT mailing list HOT@openstreetmap.org https://lists.openstreetmap.org/listinfo/hot ___ HOT mailing list HOT@openstreetmap.org https://lists.openstreetmap.org/listinfo/hot
