http://www.mediavr.com/thanaglyph1.htm Here is a stereo panorama shot with two 5DmkIIs/10.5mm Nikkor in about 4 seconds. The cameras are in verticalMessage 1 of 81 , Mar 24, 2010View Sourcehttp://www.mediavr.com/thanaglyph1.htm
Here is a stereo panorama shot with two 5DmkIIs/10.5mm Nikkor in about 4 seconds. The cameras are in vertical orientation on a spinner gadget over my head on a monopod that I am holding. They are both shooting video -- in M mode, at 1/1250 sec, at 1000IS at 30fps at about f4 (it was quite dark). For 360 that means there are about 120 exposures for each side. I turned each of the fisheye shots into equi views 50 degree horizontal and 180 vertical.
Then I loaded all the equi views -- left and right into PTGui having named them so that left and right alternated in the image sequence it was stitching. Then I used Generate Control Points and then deleted all the points that were on any near features. Then I optimized. Then I stitched the left view by omitting all the alternate images in the output options -- and ditto for the right view -- using Smartblend.
And that was it.
One advantage to the vertical orientation is I think is that it minimizes rolling shutter distortion which otherwise would have been extreme with the cameras spinning so fast. Mmm how to make it better.
... The math above about the number of images needed when using a one camera 3D system is ok but I made a typo in the formula, it should be: Number of imagesMessage 81 of 81 , May 4, 2010View SourceWim Koornneef wrote:
> ....When I thought about the issue this formula to calculate the number ofThe math above about the number of images needed when using a one camera 3D
> images that are needed popped up (*):
> A-reference number of images for a shoot in NPP=4
> B-reference forward shift out of NPP (cm)=1
> C-reference number of pixels of stitched pano (mpx)=20
> Number of images needed: A x (B + forward shift out of NPP) x C / size of
> stitched pano
> (*) I made the formula based on some educated guesses about the relations
> between the parameters so for sure it is not based on any real science...
> I my case I should have shot at least: 4x(8+1)x26/20= ~ 47 images instead
> of 31.
> For a larger output f.e. 10.000x5000 px (50mpx) I would need 90 images to
> get a good result......
system is ok but I made a typo in the formula, it should be:
Number of images needed: A x (B + forward shift out of NPP) x size of
stitched pano / C
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