Richardson-Lucy Deblurring for Scenes under A Projective Motion Path
|
Yu-Wing Tai |
Ping Tan |
Michael S. Brown |
Abstract¡ª This paper addresses how to model and correct
image blur that arises when a camera undergoes ego motion
while observing a distant scene. In particular, we discuss how
the blurred image can be modeled as an integration of the clear
scene under a sequence of planar projective transformations (i.e.
homographies) that describe the camera¡¯s path. This projective
motion path blur model is more effective at modeling the spatially
varying motion blur exhibited by ego motion than conventional
methods based on space-invariant blur kernels. To correct the
blurred image, we describe how to modify the Richardson-Lucy
(RL) algorithm to incorporate this new blur model. In addition,
we show that our projective motion RL algorithm can incorporate
state-of-the-art regularization priors to improve the deblurred
results. The projective motion path blur model along with the
modified RL algorithm is detailed together with experimental
results demonstrating its overall effectiveness. Statistical analysis
on the algorithm¡¯s convergence properties and robustness to noise
is also provided.
Richardson-Lucy Deblurring for Scenes under
A Projective Motion Path [pdf (2.2MB)] (Last updated: Nov 2010)
Yu-Wing Tai, Ping Tan, and Michael S. Brown, IEEE Transactions on Pattern Analysis and Machine Intelligence (TPAMI), Accepted.
(The original submission was first released as technical report on July 2009 [pdf (1.69MB)])
Coded Exposure Imaging for Projective Motion Deblurring [pdf(3.40MB)]
Yu-Wing
Tai,
Naejin Kong, Stephen Lin, Sung Yong Shin, IEEE Conference on Computer
Vision and Pattern Recognition (CVPR) 2010.
(All testing data will be released later.)
BibTex:
@article{Tai09kasittr,
AUTHOR = {Y.W. Tai and P.Tan and M.S. Brown},
TITLE = {Richardson-Lucy Deblurring for Scenes under A Projective Motion Path},
JOURNAL = {IEEE Transactions on Pattern Analysis and Machine Intelligence},
YEAR = {Accepted},
}
@inproceedings{Tai10cvpr_codeddeblur,
author = {Yu-Wing Tai and Naejin Kong and Stephen Lin and Sung Yong Shin},
title = {Coded Exposure Imaging for Projective Motion Deblurring},
booktitle = {CVPR},
year = {2010},
}