% This file was created with JabRef 2.7.2.
% Encoding: UTF8

@INPROCEEDINGS{Oyamada2008Wscg,
  author = {Yuji Oyamada and Hideo Saito},
  title = {Estimation of Projector Defocus Blur by Extracting Texture Rich Regionin
	Projection Image},
  booktitle = {International Conference in Central Europe on Computer Graphics,Visualization
	and Computer Vision (WSCG)},
  year = {2008},
  pages = {153--160},
  abstract = {To use a projector anytime anywhere, a lot of projector-camera based
	approaches have been proposed. Focal correction technique, one of
	them, reduces the effect of defocus blur which occurs when a screen
	is located out of projector's depth-of-field. To achieve focal correction,
	we have to estimate the degree of defocus blur on the 
	
	displayed images. Some previous methods use any special pattern images.
	A method which needs no special image has been proposed, however,
	this method can't estimate at less-textured or already blurred region
	in the projection image. In this paper, we propose a novel method
	for estimating PSF (Point Spread Function) without projecting any
	special pattern images. To prevent such an estimation error, we search
	and extract well-suited regions to estimate PSF in the projection
	image and estimate the PSF at extracted region. Experimental results
	show that our method can prevent PSF estimation error without any
	special images.}
}