Hugin for Circular Fisheye
Wolfgang
I am using the Hugin 2009.2.0.4461 with control point detector using
autopano-SIFT-c (default settings). I tried to use that to create
points for the result taken from a circular fisheye but the system
could not find any control points.
My testing is, using 4 photos taken from a Canon 5d2 + Sigma 8mm
Fisheye lens. I aware that the system generate 0 points and then
crashes everytime.
If I do not specify it as circular fisheye, but using other lens
settings (e.g. as normal), it could create control point and it does
not crash.
Is there something missing?
Thanks
Wolfgang
Bruno Postle
>
>I am using the Hugin 2009.2.0.4461 with control point detector using
>autopano-SIFT-c (default settings). I tried to use that to create
>points for the result taken from a circular fisheye but the system
>could not find any control points.
>
>My testing is, using 4 photos taken from a Canon 5d2 + Sigma 8mm
>Fisheye lens. I aware that the system generate 0 points and then
>crashes everytime.
This should work. What do you mean by 'crash'? Do you get an error
message? Does Hugin die completely, or do you just get no control
points?
--
Bruno
Wolfgang Lin
No control point for the first few photos (e.g. if I have taken 12, then I could see that for the first 4 to 5 I got no control points) like this:
Filename C:\Prj_VR\Photos\IMG_1578.JPG
width 5616 height 3744 format 2 hfov 257.831
reduce size to 1600 x 1067
use stereographic projection
0 keypoints found
Then once it finished all the photos. it shows:
80.1 seconds to find keypoints
Matching; ransac off, ANNmatch on...
And then pop up a window saying that "autopano-sift-c.exe has problem" and it has to be shut down. It gives me option either to report the problem or not (standard window when a program crashes in Windows).
After I click on "not to report" and go back to the Hugin, of course, no control point is found and all photos are unconnected.
Looks like the autopano-sift-c could not work for circular fisheye.
I use the same installation and same autopano-sift-c on other lens such as full frame fisheye, and I do not see such a trouble.
Thanks
Wolfgang
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Bruno Postle
>I could see that for the first 4 to 5 I got no control points) like this:
>Filename C:\Prj_VR\Photos\IMG_1578.JPG
> width 5616 height 3744 format 2 hfov 257.831
> reduce size to 1600 x 1067
> use stereographic projection
> 0 keypoints found
Can you upload this photo somewhere? It seems unlikely that no
keypoints would be found.
--
Bruno
Wolfgang Lin
Mine is "wolfga...@yahoo.com.hk"
Then I send you the link to the sendspace.
Thanks
Wolfgang
Bruno
Emad ud din Butt
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_________________________________
Asst Manager IT
Wazir Ali Industries Limited
Lahore
hdrpano
Wolfgang- I've never gotten any control points for my fisheyes when using
autopano-sift-c. But I get as many as I need with panomatic. Especially if
I increase the values for sieve1:
panomatic --fullscale --sieve1width 25 --sieve1height 25 --sieve1size 25
(The problem with panomatic in my previous post is an exception.)
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>
>
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Jeffrey Martin
slightly off topic, but why are you shooting panos with a 5d mk2 and
sigma fisheye? That's a terrible waste of your beautiful sensor. Get a
fullframe fisheye, or a samyang, or a tokina 10-17, or a shaved
nikkor. anything but a full circular fisheye!!!!
btw I use autopano-sift-c and circular fisheyes, and it generates lots
of ctrl points.
Jeffrey
Wolfgang Lin
told me that it was because of the bug in autopano-sift-c had a
trouble to handle if the grog > 225 degree. He told me to shoot using
portrait, then I should get ctrl point created! I have not tried this
yet!
Jeff, the reason I use circular because for some situation I want to
shoot hand held with as less shot as I can. I also have a Canon 15mm
but I have to shoot with tripod and pano head with it.
Wolfgang
2010/1/28, Jeffrey Martin <360c...@gmail.com>:
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Wolfgang Lin
http://www.hk360vr.net/
Wolfgang Lin
not create ctrl point if hdof > 225 degree if I remember correctly.
2010/1/28, Wolfgang Lin <wolfga...@gmail.com>:
Jeffrey Martin
now.
Wolfgang, you can certainly shoot with your 15mm handheld. Just
practice :)
if you want 3 shot panos, get a shaved nikkor or samyang. MUCH higher
resolution final panos, still in 3 shots.
On Jan 28, 10:56 am, Wolfgang Lin <wolfgang....@gmail.com> wrote:
> Sorry, two typo... It was Bruno who told me that autopano-sift-c could
> not create ctrl point if hdof > 225 degree if I remember correctly.
>
> 2010/1/28, Wolfgang Lin <wolfgang....@gmail.com>:
>
>
>
> > I did not get any ctrl point if I shot Circular in landscape. Berno
> > told me that it was because of the bug in autopano-sift-c had a
> > trouble to handle if the grog > 225 degree. He told me to shoot using
> > portrait, then I should get ctrl point created! I have not tried this
> > yet!
>
> > Jeff, the reason I use circular because for some situation I want to
> > shoot hand held with as less shot as I can. I also have a Canon 15mm
> > but I have to shoot with tripod and pano head with it.
>
> > Wolfgang
>
> > 2010/1/28, Jeffrey Martin <360cit...@gmail.com>: