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Messages 9-7 deleted by topic administrator between 10-07-2008 02:22 AM and 07-21-2006 08:58 AM |
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Mike McCracken
10-21-2003
12:57 PM ET (US)
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I was curious about how important it was that they had a particular known pattern to work with. It sounds like they could do the same technique with any reflected image, as long as it had a line and a point in a known world position - so if there was a well-matched model of the scene, that should do just as well as a calibrated reference pattern, right?
I suspect that this is true, but that it just wasn't the focus of the paper to extend it in that way, but I'd be interested to hear if anyone thinks it's due to a limitation in the technique.
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Jing Shiau
10-21-2003
02:59 AM ET (US)
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This paper is neat, but I can't see much application to the world of computer vision. The authors also said that their findings will be useful for calibration of amniview cameras with curved surfaces mirrors.
Still looking forward to the presentation tomorrow. The paper reminded me of the time in CSE250... learning about epipoles, etc.
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Meifang Huang
10-21-2003
02:07 AM ET (US)
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This paper goes into very detail about the principal reference system, which is introduced as their geometric coordinate, and the relationship of the surface parameters with the coordinate. They solved the surface parameters point by point instead of using a global estimated function. This is a very good approximation to get the real surface, since if we get more reconstructed points, we could have more information to formulate the actual surface. The problem here is that this method only works on specular surfaces. When the surfaces are not ideally reflective or the angle of reflection is distorted, the surface would not be correctly reconstructed. I'm just thinking of that can this method reconstruct the surface of a distorting mirror.
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