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how to fix perspective mismatch and what is the reason of it

 
n°1234
oglop
Posted on 08-19-2006 at 07:12:10 AM  profilanswer
 

the sequence was shot by canon s80 at 1024*768 15fps,and i used automatic tracking function ,the 3d object plane seems stable and stick to the desktop fairly well,but the problem is the perspective is not matching, if u scroll to the end of the sequence ,u 'll find that clearly show up ,the right corner side of the plane doesn't match the edge of the desktop, why these happens and what could i do to fix that?
 
 
i followed the guide line of the Gnomon title camera tracking 101 ,and give mm the right  camera parameters,ccd size 1/1.18",calculate the real sensor size by the 2/3 rule and ...
 
 
since the quality is quite low, should i add manual tracks or strengthen some of the automatic soft tracks ? beacause i know i should have got good result , for a simple scene like this,
 
any suggestions or clues? thank u  
 
 
the project file and the avi file
 
http://rapidshare.de/files/29941654/mm.rar.html

n°1248
fred
Posted on 08-30-2006 at 07:53:19 PM  profilanswer
 

have you use a mask to get out of the tracking the guy in the video who is probably moving ?

n°1255
oglop
Posted on 09-09-2006 at 02:00:59 PM  profilanswer
 

but it didn't show improvements.

n°1272
niko
Posted on 10-04-2006 at 10:32:04 AM  profilanswer
 

Hi,
 
Did you try to add hard tracks?
What is the "kind" of movement of the camera?
 
Regards,
 
Niko


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