PTgui alignment with Yasuhara Madoka 180 fisheye lens

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thomash2

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Aug 7, 2012, 3:47:57 PM8/7/12
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PTgui is having problems aligning images from the Yasuhara Madoka 180 fisheye lens.  Usually it will only auto generate control points for 4 or 5 out of 6 rotations, or 3 out of 4 rotations. Is there some kind of process I should follow to get it to work without having to do a lot of manual generation?

Istvan Takacs

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Aug 13, 2012, 8:16:40 AM8/13/12
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Hi!

I use it, test it and I dont have problem! I will share some sample soon.

Regards

Istvan

On 7 August 2012 21:47, thomash2 <thomas...@gmail.com> wrote:
PTgui is having problems aligning images from the Yasuhara Madoka 180 fisheye lens.  Usually it will only auto generate control points for 4 or 5 out of 6 rotations, or 3 out of 4 rotations. Is there some kind of process I should follow to get it to work without having to do a lot of manual generation?

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Michel Thoby

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Aug 17, 2012, 5:24:35 AM8/17/12
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Hi Istvan,

Glad to know that we can expect to play soon with sample images.
I have used some Madoka180 photographs that were shot with a NEX-5 on a single horizontal row (4 around). I have had a similar experience to the reported result from tries by Thomas: I need to put manually a lot of CP to get a decent stitch. I am eager to learn what's actually causing a different outcome with your shots.

Michel

Istvan Takacs

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Aug 27, 2012, 6:40:43 PM8/27/12
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Hi!

sorry for the long delay...

first of all here you can find some test with the Madoka (+nex5)


and here is a ptgui file (sorry but without pictures) 

The lens is excelent, very sharp, but the nex5 is not best camera for panorama (bracket is +-0,7fe, no ir+bracket)

Regards 
Istvan

Roger D. Williams

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Aug 29, 2012, 3:44:16 AM8/29/12
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On Tue, 28 Aug 2012 07:40:43 +0900, Istvan Takacs <takacs...@gmail.com> wrote:

Hi!

sorry for the long delay...

first of all here you can find some test with the Madoka (+nex5)


and here is a ptgui file (sorry but without pictures) 

The lens is excelent, very sharp, but the nex5 is not best camera for panorama (bracket is +-0,7fe, no ir+bracket)

Regards 
Istvan

I had to wait until I could access these on my PC because I couldn't view them on my iPad,
but I must say the Madoka looks as if it is exceeding expectations! That shot straight into
the sun in very impressive, no problems with ghosts or flare (but maybe you cleaned them
all away in post processing?).

I am not so sure about the colour rendering, although that could be anything from your personal
preference to some problem with colour profiles between your computer and mine... (wry grin)
Detail looks good, although I would have liked to zoom in closer to get a better look.

All in all very encouraging. Thanks for posting such an interesting collection. It certainly
looks as if you have the non-parallax point accurately nailed, judging by that shot of the chess
players!

Roger W.


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Panorama: Rogerama at photosynth.net

John Houghton

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Aug 29, 2012, 3:42:51 PM8/29/12
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On Aug 27, 11:41 pm, Istvan Takacs <takacs.ist...@gmail.com> wrote:
> and here is a ptgui file (sorry but without pictures)
> http://album.reality.hu/panos/madoka/sample.pts

Pity there are no image files. The dummy blue and white images that
PTGui generates take up a strange shape in the Panorama Editor
window. Just measuring the width of an image there gives an fov of
216. Seems to be in part due to the not especially large horizontal
shift parameter. Intriguing.

John

秋吉健次

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Aug 29, 2012, 6:51:42 PM8/29/12
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Hi!

YASUHARA SEISAKUSHO  is disclosing the NPP data of MADOKA 180.

I attach this data to mail.

Please utilize it by all means.

Best Regards,


2012/8/29 Roger D. Williams <ro...@adex-japan.com>

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PeterWong

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Oct 18, 2012, 12:52:08 PM10/18/12
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Hi, I am an amateur panorama photographer. I take handheld panorama most of the time when I travel. I use a panohead if the situation allows. My old gear was a Nikon Coolpix P5100 with FC-E8. Recently I bought a Madoka 180 to go with the Nex.
Until they come up with a better stitcher that will handle the Madoka well, I have deviced the following unorthodox solution.

1. Take 4 shots around dipping down 15 degrees to cover the nadir with good resolution. (The obstruction of the panohead will be kept to the minimum in the end.)
2. Take 1 shot for the top, zenith.
3. Box the shots in tight squares. (the sensor is a bit off centre as usual.)
4. Defish the shots, so that the orthographic looks similar to the stereographic. (e.g. PTLens fisheye distortion by the value of 117. Vignette correction is also possible.)
5. PTGui stitches the 5 shots automatically with no problem.

Here are 2 examples:

6 shots Handheld:
http://210.0.215.204/peterwong/panorama/PlazaHollywood/p...
5 shots with Panohead:
http://210.0.215.204/peterwong/panorama/ForumCourt/camer...


Peter Wong
Hong Kong Eyes:
http://home.netvigator.com/~wongpete/panorama

PeterWong

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Oct 19, 2012, 12:11:05 PM10/19/12
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I have made available for download the photos of the second panorama I posted last time.
The files are compressed for Web with factor 7, I hope the quality is still good.
Shots 01-05 are centered and defished such that orthographic appearance is changed to look like stereographic.



PTGui will align the 5 shots with a breeze.  It is nearly perfect if you look close enough.



Peter Wong
Hong Kong Eyes:

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