Augmented Reality Builder with OpenFrameworks

Hi all,

I am currently involved in developing this AR builder for museum exhibits. Below is a screenshot of the builder.

http://img228.imageshack.us/f/editorl.jpg/

Feel free to check it out at http://code.google.com/p/ariel-builder/

The pattern recognition and everything else works great. But I am getting a strange offset with my images to the markers. I have tried many things to try and solve this but the rotation isn’t fixed yet. Any help would be appreciated.

Seen below are the two images, to show what the problem is.

http://img413.imageshack.us/i/image1bh.jpg/

http://img153.imageshack.us/i/rotimage.jpg/

The image seems to overlap the marker only if the marker is aligned. If it is rotated/inverted the image seems to rotate differently. Also, there seems to be a big translation issue between the marker and the image itself. I can’t seem to figure out why this is happening. The calculations seem fine. Please do help me :smiley: