Timeline for How can I improve stitching of nadir and zenith shots in 360º hemispheric panos?
Current License: CC BY-SA 2.5
7 events
| when toggle format | what | by | license | comment | |
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| Sep 24, 2012 at 16:56 | comment | added | Sukima | I'm having a painful time dealing with any kinds of lines in the nadir. Things like boards or slate end up all out of whack. I can post edit the nadir after the stitching in the Gimp however the size of these images (3000x3000) are so large a single transform or perspective change takes about 10-20 seconds. Painful! I wish Hugin could handle this out of the box but the nadir is always distorted and never lines the lines up correctly. | |
| Jan 21, 2012 at 22:25 | vote | accept | Rob Clement | ||
| Sep 24, 2010 at 10:27 | comment | added | Greg | Zenith/nadir is tricky to capture indeed. If you shoot with a fisheye, after shooting everything around you, you can step back a little from the point where you were standing and shoot the Nadir at an angle in order to avoid capturing your legs. Then you can adjust the perspective of the shoot in Photoshop or Lightroom . I also used to shoot Nadirs without changing the position of the camera but stepping back a little. My legs were still in the shot but Hugin did a great job deleting them. | |
| Sep 24, 2010 at 2:33 | comment | added | mmr | I tend to take a different approach-- I like the oversampling with a less-wide lens-- but it's hard to argue with results. | |
| Sep 24, 2010 at 1:53 | comment | added | Greg | Well, the answer to the zenith/nadir problem is given in the second paragraph quote: 'Secondly, an 8mm fisheye lense offers a 180 degree horizontal field of view, so if you put your camera in a portrait orientation you won't have to shoot nadir and zenith separately as your lens will capture everything from top to bottom, so the zenith and nadir will form together from your stitched pictures. That solves one of the problems you have mentioned above.' | |
| Sep 24, 2010 at 1:34 | comment | added | Reid | While long and detailed, this answer is again about general panoramics and not the zenith/nadir special cases. | |
| Sep 24, 2010 at 1:01 | history | answered | Greg | CC BY-SA 2.5 |