[ptx] Interesting problem with autopano

[Guillaume Filion]

Hi Alexandre,

I've been using autopano for some time now with very good results. 
However, today I was having problems with these two pictures:
http://logidac.com/gfk/autopano-bug/P1020555.JPG
http://logidac.com/gfk/autopano-bug/P1020571.JPG

There's heavy parallax effect with these pictures, so that might be 
what's causing the problems. I'm not sure if you can do something with 
that, picture 571 is not very good for the panorama, so I can't really 
blame autopano. I'm sending these to you in case you wanted some "bad 
pictures" for a torture test. Anyway, here are the results I get:

If I set validation:0, I get 57 pairs, of which most are wrong.
http://logidac.com/gfk/autopano-bug/validation0.jpg
http://logidac.com/gfk/autopano-bug/validation0.pto

If I set validation:1, I only get 4 pairs, of which one is wrong.
http://logidac.com/gfk/autopano-bug/validation1.jpg
http://logidac.com/gfk/autopano-bug/validation1.pto

If I set validation:2 or more, I don't get any pair:
===============================================================================
| AUTOPANO : Automatic Panorama Recognising Tool for Panotools
|  version 1.03, 21 July 2004
|  http://autopano.kolor.com
|  Author : Alexandre Jenny
===============================================================================
FINDING PICTURES [ Algorithm : folder analysis ]
   Found 2 pictures
       0 -> P1020555.JPG
       1 -> P1020571.JPG
   Timing : 3.417 ms

KEYPOINT DETECTION [ Algorithm : standard SIFT ]
   P1020555.JPG -> (960x1280) 480x640 240x320 120x160 -> 1023 Keys
   P1020571.JPG -> (960x1280) 480x640 240x320 120x160 -> 1140 Keys
   Timing : 4.32 s

MATCHING KEYS [ Algorithm : global kdTree with standard kd-tree search ]
   Building kdTree with 2163 keys
   Searching ........................................
   Global Matchs : 57
   Timing : 326.1 ms

PICTURE PAIRS VALIDATION
   Pair (  0,  1)
     Ransac (In : 57, Out : 4, Residu : 4.31076)
     REMOVED
   Timing : 11.63 ms

PANORAMA CREATION

Total Time : 4.676 s


Thanks a lot for autopano,
GFK's
-- 
Guillaume Filion, ing. jr
Logidac Tech., Beaumont, Québec, Canada - http://logidac.com/
PGP Key and more: http://guillaume.filion.org/