[ptx] how to do 'correct' 360 deg. panoramas?

[Mike Runge]

Stefan,

it can be a bit tricky to optimize hfov together with a lot of other
parameters. The v parameter likes to converge to zero, what can be
mathematically correct, but without sense ;-)

For best results you may need to experiment with different optimisation
strategies like:
- first optimize p only
- then optimise p and v (or only v)
- then optimise y, r and the other parameters without optimizing p and v
again.

best, mike

On 2/3/2004, "Stefan M. Brandl" <ptx at smbnet.de> wrote:

>On Tue, Feb 03, 2004 at 08:03:06AM +0100, Pablo d'Angelo wrote:
>> On Tue, 03 Feb 2004, Stefan M. Brandl wrote:
>>
>> > Hi,
>> > after making some panorams with 2-5 images I tried my first
>> > 360 degree panorama:
>> >
>> > http://www.smbnet.de/tmp/cham1.jpg (done with PTStitcher)
>> > http://www.smbnet.de/tmp/cham2.jpg (done with nona)
>> >
>> > The problem is, that the left and rigth side are overlapping.
>> > So I have to crop it to get a smooth transition, what is very
>> > difficult.
>> > Is it possible to get this automatic (left side of the image begins
>> > where the right side ends)?
>>
>> just place control point between the left and the right side ;) and
optimise
>> HFOV (v) as well.
>>
>
>Oh, my fault!
>panosifter found no control points and I forgot to add them
>manualy.
>PTOptimizer is running at the moment.
>
>> > Are the any attemp to put color-correction into nona?
>> > With nona it took a couple of minutes to stich, with
>> > PTStitcher it took about 25 hours!
>>
>> Hmm, sometime in the future we'll work on seaming/exposure
>> registration/vignetting correction in nona.
>>
>
>Ok, thanks.
>
>
>Stefan
>
>

-- 
_________________________________________________________              
Mike Runge
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40227 Duesseldorf
	http://www.trozzreaxxion.net
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