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December 3rd, 2010, 12:54 AM  #1 
Newbie Joined: Dec 2010 Posts: 1 Thanks: 0  Find plane angle from pictures
Hi all. I need to get some information about plane position and camera position from a pictures. I have i plane with 3 points (red,green,blue) and then their coordinates inside the image. Using circle and string I was able to get the y rotation of the plane where the points are on (the rotation of point of view) But now I need the x rotation of the plane (the up/down angle that the camera taken the picture). But I'm not able to find a way to get it. This is an image of the angle I need http://img408.imageshack.us/i/dim01.jpg/ For example this image have a x angle of around 90° (top view) http://img41.imageshack.us/i/dscf0179a.jpg/ While this have an x angle of around 30° http://img222.imageshack.us/i/dscf0177n.jpg/ Any ideas? Thanks. Ps:the 3 points on the plane are disposed as a regular triangle. 

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angle, find, pictures, plane 
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