Sciweavers

Share
IJCV
2006

Stabilizing the Focal Length Computation for 3-D Reconstruction from Two Uncalibrated Views

10 years 6 months ago
Stabilizing the Focal Length Computation for 3-D Reconstruction from Two Uncalibrated Views
In order to reconstruct 3-D shape from two uncalibrated views, one needs to resolve two problems: (i) the computed focal lengths can be imaginary; (ii) the computation fails for fixated images. We present a practical remedy for these by subsampling feature points and fixing the focal length. We first summarize theoretical backgrounds and then do simulations, which reveal a rather surprising fact that when the focal length is actually fixed, not using that knowledge yields better results for non-fixated images. We give an explanation to this seeming paradox and derive a hybrid method switching the computation by judging whether or not the images are fixated. Doing simulations and real image experiments, we demonstrate the effectiveness of our method.
Ken-ichi Kanatani, Atsutada Nakatsuji, Yasuyuki Su
Added 12 Dec 2010
Updated 12 Dec 2010
Type Journal
Year 2006
Where IJCV
Authors Ken-ichi Kanatani, Atsutada Nakatsuji, Yasuyuki Sugaya
Comments (0)
books