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Augmented reality rotation & zoom (geometry problem)
Posted:
Mar 17, 2011 7:44 AM


I'm working on augmented reality engine and I have a following problem. I'm tracking a 2D rectangle tracking picture inside an other picture (webcam stream). I have detected all four 2D corner coordinates for that tracking picture.
Now I need to calculate from the corner coordinates how the original tracker picture has rotated (x,y,zrotations) and zoomed. Bare in mind that the coordinates doesn't create right angle quadrilateral. Any ideas how I can do it? Thanks for any advice.



