[hugin-ptx] Re: Aerial Photography Stitching (using new mosaic mode)
I toyed with this (in Linux, and with the latest SVN). Being me, I tried to push the envelope and see if it can be used for a large linear panorama riddled with obstacles, parallax, and all funny things to deal with. The good news is that TiX, TiY, TiZ is *very promising*. The bad news is that the process is extremely dependent on having all CPs on a single plane - just the relief on the brick walls I shot seems to be enough to generate significant error. The best I got it down was around RMS 6, although at one attempt I even got to RMS 4. Bruno Postle wrote: > On Wed 23-Sep-2009 at 00:37 +0200, Pablo d'Angelo wrote: >> Quick procedure: >> >> 1. panomatic -o 539-549.pto *.jpg lots of CPs to prune after this stage. I guess I am better off with manually setting them. Do I understand correctly that if I use a calibrated lens and optimize only for y,p,r,TiX,TiY,TiZ I need six CPs per image pair? >> 2. hugin 539-549.pto >> - set focal length to 50mm (~ HFOV 26°) I guess this is specific to the 539-549 project? I left the focal length from EXIF. >> - open fast preview >> - set projection to rectilinear, >> - select hfov and vfov ~ 100 >> - show only the first image. >> - use the drag tool to move the first image so that it roughly >> looking like a nadir image I moved the middle image in my sequence to be the first image on the list; and then I moved it down to the nadir by editing the pitch value in the Images tab. When I was using rectilinear projection in the rest of the process, it would only render a part of the image. I ended up setting projection to equirect HFOV360 VFOV180. >> - select all images again >> - Go to the optimizer tab, select (optimize y,p,r) >> - tick "edit script" >> - copy script into a text file 539.549.txt >> - Edit script, add >> Tx0.1 Ty0.1 Tz0.1 to "i" lines, except for the first one. >> - modify the v lines to include Tx# Ty# Tz# (where # is the image >>number) >> - run PToptimizer 539-549.txt >> - run PTmender -o 539-549 539-549.txt >> - run PTroller -o 539-549.tif 539-5490*.tif done everything as above. then I loaded the resuting equirect in Hugin. The image is on the nadir. I reprojected it to rectilinear and set the appropriate view. Because it is quite long I get some distorsion at the extremes (and the rectilinear needs to be projected on 150°). maybe I should have set a longer focal length / smaller HFOV at step 2 instead of using the EXIF, to "simulate" more distance from the sphere and thus get a longer panorama within a reasonable HFOV for the rectilinear projection? > Works for me, I also found that I can successfully optimise lens > parameters: I also tried with optimizing lens parameters. a/b/c work. I did not try to optimize FOV (v?). When I tried to optimize d and e I got the btter RMS but the images where very much shifted. > ..so when can we have this in Hugin? ;-) I guess the answer is: when the layout branch is merged to trunk. what is its status? Yuv --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "hugin and other free panoramic software" group. A list of frequently asked questions is available at: http://wiki.panotools.org/Hugin_FAQ To post to this group, send email to hugin-ptx@googlegroups.com To unsubscribe from this group, send email to hugin-ptx-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/hugin-ptx -~--~~~~--~~--~--~---
[hugin-ptx] Re: Aerial Photography Stitching (using new mosaic mode)
Hi Oskar, Oskar Sander schrieb: > Thanks, I see. So the method was to take one shot as straight down as > possible and then to take consecutive shots panning out towards the > horizon perpendicular to the flightpath, and then repeat that procedure > from the downward view, right? Looks like it, but it doesn't seem to be the very best option. I'd liked to have more nadir shots and with a wide angle lens. So for your diving activities, better look straight down, and swim as high as possible over the area of interest (which is probably hard, given visibility constraints). > I think the result looks really nice Pablo! > > It would be really interesting if the result continue to come out as > nice if some more pic in the flightpath (= even more x & y camera shift) > are included in the project like with adding these pictures. > DSC00554-555 > 558-559-560 > 562-563-564 I have done some experiments and added support for XYZ into the gsoc2008_layout branch (not commited yet, as the variable names in libpano13 will change soon, I hope). Here are the results of using the above images and aligning it onto an OSM map image. It took some efforts to selecting the right control points between the map and the images. I also used many straight line control points, as it is hard to measure the position of an single point precisely. Results: Mosaic (4800x6400 pixels): http://vps-1005786-1584.united-hoster.de/tmp/osm_mosaic/with_manual_control_merged.jpg Mosaic blended with map (4800x6400 pixels): http://vps-1005786-1584.united-hoster.de/tmp/osm_mosaic/with_manual_control_merged_overlay.jpg source data with hugin projects and control points: http://vps-1005786-1584.united-hoster.de/tmp/osm_mosaic/osm_aerial_mosaic.zip This is probably a good test case to compare the XYZ model with the tilt model. ciao Pablo --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "hugin and other free panoramic software" group. A list of frequently asked questions is available at: http://wiki.panotools.org/Hugin_FAQ To post to this group, send email to hugin-ptx@googlegroups.com To unsubscribe from this group, send email to hugin-ptx-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/hugin-ptx -~--~~~~--~~--~--~---
[hugin-ptx] Re: Aerial Photography Stitching (using new mosaic mode)
On Wed 23-Sep-2009 at 15:54 -0700, Daniel M. German wrote: > >did you try optimizing using the tilt model? Tx, Ty and Ts (try those >before you try Tz). >I'll be curious to see what happens. Sorry, I only tried Pablo's modified version. >Could you post the script so I can try it? Thanks! I think I put all the photos and the script here: http://bugbear.postle.net/~bruno/misc/DSC00169-DSC00184.zip This is quite an extreme example, I deliberately took photos from lots of different angles and distances. >> Works for me, I also found that I can successfully optimise lens >> parameters: >> http://www.flickr.com/photos/36383...@n00/3947727801/ -- Bruno --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "hugin and other free panoramic software" group. A list of frequently asked questions is available at: http://wiki.panotools.org/Hugin_FAQ To post to this group, send email to hugin-ptx@googlegroups.com To unsubscribe from this group, send email to hugin-ptx-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/hugin-ptx -~--~~~~--~~--~--~---
[hugin-ptx] Re: Aerial Photography Stitching (using new mosaic mode)
Hi Bruno, did you try optimizing using the tilt model? Tx, Ty and Ts (try those before you try Tz). I'll be curious to see what happens. Could you post the script so I can try it? Thanks! --dmg On Wed, Sep 23, 2009 at 11:44 AM, Bruno Postle wrote: > > On Wed 23-Sep-2009 at 00:37 +0200, Pablo d'Angelo wrote: >> >>Quick procedure: >> >>1. panomatic -o 539-549.pto *.jpg >>2. hugin 539-549.pto >> - set focal length to 50mm (~ HFOV 26°) >> - open fast preview >> - set projection to rectilinear, >> - select hfov and vfov ~ 100 >> - show only the first image. >> - use the drag tool to move the first image so that it roughly >>looking like a nadir image >> - select all images again >> - Go to the optimizer tab, select (optimize y,p,r) >> - tick "edit script" >> - copy script into a text file 539.549.txt >> - Edit script, add >> Tx0.1 Ty0.1 Tz0.1 to "i" lines, except for the first one. >> - modify the v lines to include Tx# Ty# Tz# (where # is the image >> number) >> >> - run PToptimizer 539-549.txt >> - run PTmender -o 539-549 539-549.txt >> - run PTroller -o 539-549.tif 539-5490*.tif >> - crop 539-549.tif in your favorite image editor. > > Works for me, I also found that I can successfully optimise lens > parameters: > > http://www.flickr.com/photos/36383...@n00/3947727801/ > > ..so when can we have this in Hugin? ;-) > > -- > Bruno > > > > -- --dmg --- Daniel M. German http://turingmachine.org --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "hugin and other free panoramic software" group. A list of frequently asked questions is available at: http://wiki.panotools.org/Hugin_FAQ To post to this group, send email to hugin-ptx@googlegroups.com To unsubscribe from this group, send email to hugin-ptx-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/hugin-ptx -~--~~~~--~~--~--~---
[hugin-ptx] Re: Aerial Photography Stitching (using new mosaic mode)
On Wed 23-Sep-2009 at 00:37 +0200, Pablo d'Angelo wrote: > >Quick procedure: > >1. panomatic -o 539-549.pto *.jpg >2. hugin 539-549.pto > - set focal length to 50mm (~ HFOV 26°) > - open fast preview > - set projection to rectilinear, > - select hfov and vfov ~ 100 > - show only the first image. > - use the drag tool to move the first image so that it roughly >looking like a nadir image > - select all images again > - Go to the optimizer tab, select (optimize y,p,r) > - tick "edit script" > - copy script into a text file 539.549.txt > - Edit script, add > Tx0.1 Ty0.1 Tz0.1 to "i" lines, except for the first one. > - modify the v lines to include Tx# Ty# Tz# (where # is the image >number) > > - run PToptimizer 539-549.txt > - run PTmender -o 539-549 539-549.txt > - run PTroller -o 539-549.tif 539-5490*.tif > - crop 539-549.tif in your favorite image editor. Works for me, I also found that I can successfully optimise lens parameters: http://www.flickr.com/photos/36383...@n00/3947727801/ ..so when can we have this in Hugin? ;-) -- Bruno --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "hugin and other free panoramic software" group. A list of frequently asked questions is available at: http://wiki.panotools.org/Hugin_FAQ To post to this group, send email to hugin-ptx@googlegroups.com To unsubscribe from this group, send email to hugin-ptx-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/hugin-ptx -~--~~~~--~~--~--~---
[hugin-ptx] Re: Aerial Photography Stitching (using new mosaic mode)
Thanks, I see. So the method was to take one shot as straight down as possible and then to take consecutive shots panning out towards the horizon perpendicular to the flightpath, and then repeat that procedure from the downward view, right? I think the result looks really nice Pablo! It would be really interesting if the result continue to come out as nice if some more pic in the flightpath (= even more x & y camera shift) are included in the project like with adding these pictures. DSC00554-555 558-559-560 562-563-564 Cheers /O --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "hugin and other free panoramic software" group. A list of frequently asked questions is available at: http://wiki.panotools.org/Hugin_FAQ To post to this group, send email to hugin-ptx@googlegroups.com To unsubscribe from this group, send email to hugin-ptx-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/hugin-ptx -~--~~~~--~~--~--~---
[hugin-ptx] Re: Aerial Photography Stitching (using new mosaic mode)
2009/9/23 Oskar Sander : > Is it possible to view the source images to this example? Go to http://78.46.66.234/jpeg1600/ and scroll down to image DSC00539.jpg Pablo used DSC00539.jpg through to DSC00549.jpg to create the image above. There are higher resolution versions at http://78.46.66.234/jpeghigh/. -- Matt Williams http://milliams.com --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "hugin and other free panoramic software" group. A list of frequently asked questions is available at: http://wiki.panotools.org/Hugin_FAQ To post to this group, send email to hugin-ptx@googlegroups.com To unsubscribe from this group, send email to hugin-ptx-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/hugin-ptx -~--~~~~--~~--~--~---
[hugin-ptx] Re: Aerial Photography Stitching (using new mosaic mode)
Please excuse my noise Pablo. I just have to ask to clarify in my mind the geometry. Have I understood correctly that: * The parameters Tx,Ty,Tz (soon X,Y,Z) are now camera shift (Not attitude aka "tilt") * The y,p,r parameters are now changed from the "old" model so they apply to the camera center (=X,Y,Z) Right? Is it possible to view the source images to this example? *About altitude*, in the old/current hugin/panolib model i have sometimes got ok result where individual FOV(v) for the lenses/images represent the altitude indirectly. Cheers /O --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "hugin and other free panoramic software" group. A list of frequently asked questions is available at: http://wiki.panotools.org/Hugin_FAQ To post to this group, send email to hugin-ptx@googlegroups.com To unsubscribe from this group, send email to hugin-ptx-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/hugin-ptx -~--~~~~--~~--~--~---
[hugin-ptx] Re: Aerial Photography Stitching (using new mosaic mode)
Pablo d'Angelo schrieb: > Matt Williams wrote: >> 2009/9/22 Pablo d'Angelo : >>> Hi Matt, >>> This is the method I had been using before, but obviously without the Tilt parameters and so it really struggled. >>> Actually, I played around a little, and I wasn't satisfied with the tilt >>> parameters, so changed libpano to allow estimate the X,Y and Z camera >>> position (assuming a planar earth). I still need to do some final >>> testing, but so far it doesn't look too bad. >> I see you've checked some of these changes into SVN, I've uncommented >> the '#define MOSAIC_XYZ 1' line in adjust.c. Is there anything I need >> to do elsewhere to allow it estimate these variables? > > No. With these you could just try to optimize y,p,r,Tx,Ty,Tz for all > images except the first one. There is a bug in panotools. Sometimes it does not optimize parameters if they are exactly set to 0. This seems to affect the Tx, Ty and Tz parameters as well (a,b,c parameters are the other parameter that suffer from this). So simply add Tx0.1 Ty0.1 Tz0.1 to "i" lines, except for the first one. Note: the names of the Tx, Ty, Tz parameters are only valid with the current svn and the MOSAIC_XYZ define in adjust.c. They will be available under another name in the future (probably just X Y Z). Here is the result of merging images 539-549 from http://vps-1005786-1584.united-hoster.de/tmp/539-549.jpg It is not referenced to an OSM map (too late in the evening...), but the result looks very promising. It also shows that the sideward views are probably not that helpful for mapping, at least when reprojecting them. Quick procedure: 1. panomatic -o 539-549.pto *.jpg 2. hugin 539-549.pto - set focal length to 50mm (~ HFOV 26°) - open fast preview - set projection to rectilinear, - select hfov and vfov ~ 100 - show only the first image. - use the drag tool to move the first image so that it roughly looking like a nadir image - select all images again - Go to the optimizer tab, select (optimize y,p,r) - tick "edit script" - copy script into a text file 539.549.txt - Edit script, add Tx0.1 Ty0.1 Tz0.1 to "i" lines, except for the first one. - modify the v lines to include Tx# Ty# Tz# (where # is the image number) - run PToptimizer 539-549.txt - run PTmender -o 539-549 539-549.txt - run PTroller -o 539-549.tif 539-5490*.tif - crop 539-549.tif in your favorite image editor. ciao Pablo --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "hugin and other free panoramic software" group. A list of frequently asked questions is available at: http://wiki.panotools.org/Hugin_FAQ To post to this group, send email to hugin-ptx@googlegroups.com To unsubscribe from this group, send email to hugin-ptx-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/hugin-ptx -~--~~~~--~~--~--~---
