Re: [GRASS-user] align large number of images in a automated way
Hi Miltinho, If I understood you correctly, I think we are facing similar challenges, because we are planning to test our wildlife foto traps in a remote sensing context where we need to have a proper georeference for each image. I assume all your images are equal, means they cover the same surface on the ground and are taken from the same angle and with the same camera? Because of other obligations we have not really started the work yet, but we consider two alternative solutions: A full GRASS based ortorectification: http://gis.cri.fmach.it/uploads/CAGEO_2011.pdf (for this one I have to talk to our camera operator that he provides the necessary information on fiducial marks, and necessary camera parameters, not sure if we can make it work) Or (more quick and dirty) using ground control points in gdalwarp (http://www.gdal.org/gdalwarp.html). Probably, you may have to add the GCPs to the image using gdal_translate (then VRT is a recommended output format) in advance to gdalwarp. Don`t know how far this work got: http://linfiniti.com/2010/10/automated-gcp-collection-in-quantum-gis/ In any case I would be interested in how you solved this at the end... Cheers and good luck Stefan From: grass-user-boun...@lists.osgeo.org [mailto:grass-user-boun...@lists.osgeo.org] On Behalf Of Milton Ribeiro Sent: 30. juli 2014 04:41 To: grass-user grass-user Subject: [GRASS-user] align large number of images in a automated way Dear all, I have a large number of images that was taken using a camera in the top of a 15 m tall tower. Now I need to align or spatially synchronize them using same automated solution, because it is not feasible one by one (I have 18,000 photos). Any hint are welcome. best wishes -- Miltinho - m...@rc.unesp.brmailto:m...@rc.unesp.br Laboratório de Ecologia Espacial e Conservação - LEEC Depto de Ecologia - UNESP - Rio Claro Av. 24A, 1515- Bela Vista 13506-900 Rio Claro, SP, Brasil Fone: +55 19 3526-9647 (office) 19 3526-9680 (lab) Cel: 19 9853-3220 / 19 9853-5430 Depto Ecologia http://ib.rc.unesp.br/#!/departamentos/ecologia/ PG ECO BIODIV http://ib.rc.unesp.br/#!/departamentos/ecologia/pos-graduacao-em-ecologia-e-biodiversidade/ CV http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4792988H6mostrarNroCitacoesISI=truemostrarNroCitacoesScopus=true Google citations http://scholar.google.com/citations?user=OWX_2eAJ ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] align large number of images in a automated way
On Wed, Jul 30, 2014 at 10:00 AM, Hamish hamish.webm...@gmail.com wrote: you may be interested in this earlier work, I seem to recall there was a FOSS4G presentation/proceedings about it too some years ago too (does a picture from a hill looking down on a dock with a Lake beyond jog the memory of anyone?). Yes, I made that together with Ivan Michelazzi. http://grasswiki.osgeo.org/wiki/Orthorectification_digital_camera Reference: M. Neteler, D. Grasso, I. Michelazzi, L. Miori, S. Merler, and C. Furlanello, 2005: An integrated toolbox for image registration, fusion and classification. International Journal of Geoinformatics, 1(1), pp. 51-61 http://www.grassbook.org/neteler/papers/neteler2005_IJG_051-061_draft.pdf cheers Markus ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] align large number of images in a automated way
The only problem I see with using Hugin is the lack of orthorectification. I suppose you must assume planar images. I hope there will arrive enough fundings to bring bundle adjustment development on... giovanni Milton wrote: I have a large number of images that was taken using a camera in the top of a 15 m tall tower. Now I need to align or spatially synchronize them using same automated solution, because it is not feasible one by one (I have 18,000 photos). Any hint are welcome. best wishes (I'll second the recommendation for Hugin, it's great) http://hugin.sourceforge.net/ http://hugin.sourceforge.net/docs/manual/Autopano-sift.html Stefan: If I understood you correctly, I think we are facing similar challenges, because we are planning to test our wildlife foto traps in a remote sensing context where we need to have a proper georeference for each image. I assume all your images are equal, means they cover the same surface on the ground and are taken from the same angle and with the same camera? Because of other obligations we have not really started the work yet, but we consider two alternative solutions: A full GRASS based ortorectification: http://gis.cri.fmach.it/uploads/CAGEO_2011.pdf (for this one I have to talk to our camera operator that he provides the necessary information on fiducial marks, and necessary camera parameters, not sure if we can make it work) Or (more quick and dirty) using ground control points in gdalwarp (http://www.gdal.org/gdalwarp.html). Probably, you may have to add the GCPs to the image using gdal_translate (then VRT is a recommended output format) in advance to gdalwarp. you may be interested in this earlier work, I seem to recall there was a FOSS4G presentation/proceedings about it too some years ago too (does a picture from a hill looking down on a dock with a Lake beyond jog the memory of anyone?). http://grass.osgeo.org/gdp/stereo-grass/index.html http://grasswiki.osgeo.org/wiki/Image_processing#Stereo_ideas http://grasswiki.osgeo.org/wiki/Orthorectification_digital_camera regards, Hamish ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] align large number of images in a automated way
On Wed, Jul 30, 2014 at 11:17 AM, G. Allegri gioha...@gmail.com wrote: The only problem I see with using Hugin is the lack of orthorectification. I suppose you must assume planar images. The request is, I think, related to a stack of images (from a tower) rather than a flight. I hope there will arrive enough fundings to bring bundle adjustment development on... Here in FEM (http://gis.cri.fmach.it/) Stephan Turek has started to implement bundle block adjustment during his ERASMUS stay last year. It would be nice to expand that prototype. However, not related to the request as far as I understand. Markus ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] align large number of images in a automated way
Here in FEM (http://gis.cri.fmach.it/) Stephan Turek has started to implement bundle block adjustment during his ERASMUS stay last year. It would be nice to expand that prototype. However, not related to the request as far as I understand. Sorry, I saw that you were citing GRASS orthorectification papers, so I thought it was a requirement. giovanni Markus -- Giovanni Allegri http://about.me/giovanniallegri Twitter: https://twitter.com/_giohappy_ blog: http://blog.spaziogis.it GEO+ geomatica in Italia http://bit.ly/GEOplus ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] align large number of images in a automated way
Hi again, given that from that tower (or in our cases wildlife foto traps) exactly the same images are taken at different points in time (assuming cameras are mounted with fixed angle and so on), one could ideally use one and the same set of GCPs on all images... I did not digg through our image material yet, so I cannot estimate the maximum shift between images, but I expect (hope) it is neglectable... In that case orthrectification in GRASS GIS should be scriptable (should`nt it?). I will have a look at our images asap (though that might be some days or weeks). Cheers Stefan ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
[GRASS-user] grass7 will not display raster
Hello Hamish, I installed GRASS 7 (following Markus' hint to install GEOS frwk also). GRASS7 and the GUI start and all seems fine until I try to display a raster map – it does not display. I thought that it might be because the mapset was created in an older version of GRASS (6.4.2) but I started a new project and imported a raster into a new map set in G7 – still not displaying. I can draw a histogram of the raster data but I cannot view the map. When I start GRASS7, I get the message below, but I do not know what it means. I use a Mac. Will appreciate any help with this. Thank you. Launching wxpython GUI in the background, please wait... GRASS 7.0.0svn (rain):~ objc[15362]: Class TSSandboxPrefs is implemented in both /Library/Frameworks/TSLicense.framework/Versions/A/TSLicense and /Library/QuickTime/Flip4Mac WMV Import.component/Contents/MacOS/Flip4Mac WMV Import. One of the two will be used. Which one is undefined. objc[15362]: Class TSSandboxPrefs is implemented in both /Library/Frameworks/TSLicense.framework/Versions/A/TSLicense and /Library/QuickTime/Flip4Mac WMV Advanced.component/Contents/MacOS/Flip4Mac WMV Advanced. One of the two will be used. Which one is undefined. GRASS 7.0.0svn (rain):~ Raphael. From: Hamish hamish.webm...@gmail.commailto:hamish.webm...@gmail.com Date: Wednesday, 30 July 2014 5:09 pm To: Viscarra Rossel, Raphael (LW, Black Mountain) raphael.viscarra-ros...@csiro.aumailto:raphael.viscarra-ros...@csiro.au Cc: grass-user@lists.osgeo.orgmailto:grass-user@lists.osgeo.org grass-user@lists.osgeo.orgmailto:grass-user@lists.osgeo.org Subject: Re: [GRASS-user] create a common colour scale Raphael wrote: thank you for the response and the hints. no worries They are very useful as i cannot get GRASS7 to work. what's the trouble? maybe we can help. regards, Hamish ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
[GRASS-user] Setting GRASS GIS GRASS_ADDON_PATH on Windows
Hi, i'm trying to run a python script with GRASS 6.4 on windows, using an osgeo4w installation and can't find where to put the GRASS_ADDON_PATH env variable, anyone managed to set on windows ? thanks ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] align large number of images in a automated way
Dear all, Thanks for all your replies. Considering the answers and comments I complement my request: 1. I have no interest on the spatial coordinates, only need align the images (so I can use a local coordinate) 2. Although the camera is fixed, there are some variability on the image positions, the platn canopy change positions etc (and we did some fix on the camera support, so part of the imagens have a diffent field of view - but we can bypass this aligning using two or three packages of images) 3. This is part of our E-phenology project, that means that we have interest on phenological changes thoughout of time 4. I will define regions of interest on the subset of images (let say part of a canopy) and analyze the greeness or other vegetation change index, so is important have all the package of images well aligned. 5. Unfortunatelly, as I have 18,000 images (and increasing), collect ground control point is not the solution :-( I will carefully check your suggestions, but if you have other hints, this will be very welcome milton 2014-07-30 8:03 GMT-03:00 Blumentrath, Stefan stefan.blumentr...@nina.no: Hi again, given that from that tower (or in our cases wildlife foto traps) exactly the same images are taken at different points in time (assuming cameras are mounted with fixed angle and so on), one could ideally use one and the same set of GCPs on all images... I did not digg through our image material yet, so I cannot estimate the maximum shift between images, but I expect (hope) it is neglectable... In that case orthrectification in GRASS GIS should be scriptable (should`nt it?). I will have a look at our images asap (though that might be some days or weeks). Cheers Stefan ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user -- Miltinho - m...@rc.unesp.br Laboratório de Ecologia Espacial e Conservação - LEEC Depto de Ecologia - UNESP - Rio Claro Av. 24A, 1515- Bela Vista 13506-900 Rio Claro, SP, Brasil Fone: +55 19 3526-9647 (office) 19 3526-9680 (lab) Cel: 19 9853-3220 / 19 9853-5430 Depto Ecologia http://ib.rc.unesp.br/#!/departamentos/ecologia/ PG ECO BIODIV http://ib.rc.unesp.br/#!/departamentos/ecologia/pos-graduacao-em-ecologia-e-biodiversidade/ CV http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4792988H6mostrarNroCitacoesISI=truemostrarNroCitacoesScopus=true Google citations http://scholar.google.com/citations?user=OWX_2eAJ ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] align large number of images in a automated way
Dear Milton, I made a quick test with the sample data you sent to me: autopano-sift-c output.pto dir_2014_002_17_1.jpg dir_2014_002_16_7.jpg [...] 555 keypoints found [...] Filtering... (dir_2014_002_17_1.jpg, dir_2014_002_16_7.jpg) A. Join Filtration: 32 to 32 B. Score Filtration: 32 to 25 Filtered partition [0,1] from 32 matches down to 25 cat output.pto # Hugin project file generated by APSCpp [...] # automatically generated control points c n0 N1 x290.400812 y143.672441 X289.377092 Y142.525139 t0 c n0 N1 x566.209025 y383.642656 X566.343984 Y383.440512 t0 c n0 N1 x321.360169 y120.632838 X321.409832 Y120.057093 t0 c n0 N1 x45.026134 y21.912848 X43.642776 Y22.815530 t0 c n0 N1 x299.155503 y122.350252 X298.325028 Y122.493041 t0 [...] c n0 N1 x377.501999 y142.803118 X372.855780 Y145.767751 t0 So, it easily find a lot of common points (runtime of autopano-sift-c is 0.72 seconds on my office Linux PC). In a scripted approach you could match the 18,000 images against a master image or the like, then convert the resulting output.pto files into a text file structure readable by i.rectify. Hope this helps, Markus ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
[GRASS-user] i.rectify (or gdalwarp -off topic)
Dear all, sorry to post this issue here, but maybe some of you can help me. Following Markus Neteler (and other) suggestioins, I was able to automatically generate a ground control point file for a large set of images. Now I have (at least) two directions. 1. rectify the image using i.rectify 2. use gdalwarp out of grass In both ways I face the same issues: a) how can I input my text file for a certain image and b) what is the proper format that I need to follow when preparing the file (for both i.rectify and gdalwarp)? Detail: the images are JPG fotos taken using a fixed camera in the top of a tower, so the images are nearly the same scene. Thanks a million -- Miltinho - m...@rc.unesp.br Laboratório de Ecologia Espacial e Conservação - LEEC Depto de Ecologia - UNESP - Rio Claro Av. 24A, 1515- Bela Vista 13506-900 Rio Claro, SP, Brasil Fone: +55 19 3526-9647 (office) 19 3526-9680 (lab) Cel: 19 9853-3220 / 19 9853-5430 Depto Ecologia http://ib.rc.unesp.br/#!/departamentos/ecologia/ PG ECO BIODIV http://ib.rc.unesp.br/#!/departamentos/ecologia/pos-graduacao-em-ecologia-e-biodiversidade/ CV http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4792988H6mostrarNroCitacoesISI=truemostrarNroCitacoesScopus=true Google citations http://scholar.google.com/citations?user=OWX_2eAJ ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] grass7 will not display raster
Does a vector map display? Are you looking at some of the demo data to make sure it’s not your map? Michael __ C. Michael Barton Director, Center for Social Dynamics Complexity Professor of Anthropology, School of Human Evolution Social Change Head, Graduate Faculty in Complex Adaptive Systems Science Arizona State University Tempe, AZ 85287-2402 USA voice: 480-965-6262 (SHESC), 480-965-8130/727-9746 (CSDC) fax: 480-965-7671(SHESC), 480-727-0709 (CSDC) www: http://csdc.asu.edu, http://shesc.asu.edu http://www.public.asu.edu/~cmbarton On Jul 30, 2014, at 12:00 PM, grass-user-requ...@lists.osgeo.orgmailto:grass-user-requ...@lists.osgeo.org grass-user-requ...@lists.osgeo.orgmailto:grass-user-requ...@lists.osgeo.org wrote: From: raphael.viscarra-ros...@csiro.aumailto:raphael.viscarra-ros...@csiro.au Subject: [GRASS-user] grass7 will not display raster Date: July 30, 2014 at 4:30:31 AM MST To: hamish.webm...@gmail.commailto:hamish.webm...@gmail.com Cc: grass-user@lists.osgeo.orgmailto:grass-user@lists.osgeo.org Hello Hamish, I installed GRASS 7 (following Markus' hint to install GEOS frwk also). GRASS7 and the GUI start and all seems fine until I try to display a raster map – it does not display. I thought that it might be because the mapset was created in an older version of GRASS (6.4.2) but I started a new project and imported a raster into a new map set in G7 – still not displaying. I can draw a histogram of the raster data but I cannot view the map. When I start GRASS7, I get the message below, but I do not know what it means. I use a Mac. Will appreciate any help with this. Thank you. Launching wxpython GUI in the background, please wait... GRASS 7.0.0svn (rain):~ objc[15362]: Class TSSandboxPrefs is implemented in both /Library/Frameworks/TSLicense.framework/Versions/A/TSLicense and /Library/QuickTime/Flip4Mac WMV Import.component/Contents/MacOS/Flip4Mac WMV Import. One of the two will be used. Which one is undefined. objc[15362]: Class TSSandboxPrefs is implemented in both /Library/Frameworks/TSLicense.framework/Versions/A/TSLicense and /Library/QuickTime/Flip4Mac WMV Advanced.component/Contents/MacOS/Flip4Mac WMV Advanced. One of the two will be used. Which one is undefined. GRASS 7.0.0svn (rain):~ Raphael. ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] i.rectify (or gdalwarp -off topic)
Milton wrote: Following Markus Neteler (and other) suggestioins, I was able to automatically generate a ground control point file for a large set of images. Now I have (at least) two directions. 1. rectify the image using i.rectify 2. use gdalwarp out of grass In both ways I face the same issues: a) how can I input my text file for a certain image and b) what is the proper format that I need to follow when preparing the file (for both i.rectify and gdalwarp)? Detail: the images are JPG fotos taken using a fixed camera in the top of a tower, so the images are nearly the same scene. Hi, If are familair with Bourne shell scripting, you might have a look in the grass6 addons SVN for i.warp and i.points.reproj scripts. (i.warp is a bit of a mess, but uses gdalwarp with grass's POINTS gcp file) the grass POINTS gcp file is pretty easy format, # image target status #east northeast north (1=ok) # 2.537267 10.230953 1393516.34 4902494.781 8.038078 10.219225 1419326.28 4903305.401 13.531500 10.212226 1445136.43 4904007.831 8.0297182.291376 1420414.87 4866269.911 2.5310902.302488 1394760.64 4865459.671 19.005416 10.198488 1470946.75 4904602.121 18.9879682.271928 1471724.12 4867566.031 13.5192342.281374 1446060.02 4867342.381 6.186646 14.579820 1410021.804000 4923820.6670001 5.233682 14.892164 1403912.826000 4925688.7450000 4.728343 14.134303 1403217.899000 4921427.9140001 8.716253 13.454576 1421998.543000 4918833.2690001 regards, Hamish ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] align large number of images in a automated way
On Thu, 31 Jul 2014 01:15:54 +1000, Markus Neteler nete...@osgeo.org wrote: Dear Milton, I made a quick test with the sample data you sent to me: autopano-sift-c output.pto dir_2014_002_17_1.jpg dir_2014_002_16_7.jpg [...] 555 keypoints found [...] Filtering... (dir_2014_002_17_1.jpg, dir_2014_002_16_7.jpg) A. Join Filtration: 32 to 32 B. Score Filtration: 32 to 25 Filtered partition [0,1] from 32 matches down to 25 cat output.pto # Hugin project file generated by APSCpp [...] # automatically generated control points c n0 N1 x290.400812 y143.672441 X289.377092 Y142.525139 t0 c n0 N1 x566.209025 y383.642656 X566.343984 Y383.440512 t0 c n0 N1 x321.360169 y120.632838 X321.409832 Y120.057093 t0 c n0 N1 x45.026134 y21.912848 X43.642776 Y22.815530 t0 c n0 N1 x299.155503 y122.350252 X298.325028 Y122.493041 t0 [...] c n0 N1 x377.501999 y142.803118 X372.855780 Y145.767751 t0 So, it easily find a lot of common points (runtime of autopano-sift-c is 0.72 seconds on my office Linux PC). In a scripted approach you could match the 18,000 images against a master image or the like, then convert the resulting output.pto files into a text file structure readable by i.rectify. I have run Milton's test images through a script which calls a number of hugin command line programs to generate control points, optimise and spit out remapped images. It seems to work quite well, with a mean error of 0.1 pix and max error of 0.3 pix. Cheers, -- Regards, Terry Duell ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] align large number of images in a automated way
Milton Cezar Ribeiro wrote 5. Unfortunatelly, as I have 18,000 images (and increasing), collect ground control point is not the solution That's only 12.5 minutes of video at 24 fps and the requirements you've described sound like a pretty typical camera stabilization problem. Why not take a look at camera tracking/stabilization software? In most cases such software will offer a high level of automation, however more importantly, at least from my perspective, they will also provide a good UI that will help you diagnose problems when the optimization process eventually goes off the rails. Something that you won't have if you opt for a completely command line solution. If you're looking for an open-source solution Blender has a decent tracker. The biggest feature it is probably missing for your application is being able to use ground control points in addition to image points. Most of the other commercial options do provide this feature, which would give you more reliable and accurate solves. Best, -- View this message in context: http://osgeo-org.1560.x6.nabble.com/align-large-number-of-images-in-a-automated-way-tp5154069p5154296.html Sent from the Grass - Users mailing list archive at Nabble.com. ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
