Pose Estimation

Hi all,

I am currently evaluating/ prototyping some tracking approaches for my
Master thesis. 
Has anyone experiences with pose estimation from just three points. I know
how ARToolkit 
calculates the pose, but it's using four points. I already read in some
papers that it's 
possible to estimate the pose with three points, but I can't find the math
to solve this problem.

The information I have for calculating the pose:
 - a triangle defined by three points ( 3D Points relative to each other,
like three ARToolkit marker coordinates)
 - the triangles side which is turned to the camera
 - the image coordinates of the three points  
 - and all the intrinsic camera parameters

Best regards 

Björn Schwertdfeger

-- 
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From:	=?ISO-8859-1?Q?=22Bj=F6rn_Schwerdtfeger=22?= <bjoern.abi99@g ......>	Received:	Nov 11, 2004
To	artoolkit@h ..................
Subject:	Pose Estimation
Hi all, I am currently evaluating/ prototyping some tracking approaches for my Master thesis. Has anyone experiences with pose estimation from just three points. I know how ARToolkit calculates the pose, but it's using four points. I already read in some papers that it's possible to estimate the pose with three points, but I can't find the math to solve this problem. The information I have for calculating the pose: - a triangle defined by three points ( 3D Points relative to each other, like three ARToolkit marker coordinates) - the triangles side which is turned to the camera - the image coordinates of the three points - and all the intrinsic camera parameters Best regards Björn Schwertdfeger -- Geschenkt: 3 Monate GMX ProMail + 3 Top-Spielfilme auf DVD ++ Jetzt kostenlos testen http://www.gmx.net/de/go/mail ++