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Multichannel blind restoration of images with space-variant degradations

SYSNO ASEP	0086541
Document Type	D - Thesis
R&D Document Type	The record was not marked in the RIV
Title	Multichannel blind restoration of images with space-variant degradations
Title	Multikanálová rekonstrukce obrazů s prostorově proměnným poškozením
Author(s)	Šorel, Michal (UTIA-B)_{RID, ORCID}
Issue data	Praha: MFF UK, 2007
Number of pages	149 s.
Language	eng - English
Country	CZ - Czech Republic
Keywords	deblurring ; space-variant restoration ; motion blur ; out-of-focus blur ; blind deconvolution
Subject RIV	JD - Computer Applications, Robotics
R&D Projects	1M0572 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
CEZ	AV0Z10750506 - UTIA-B (2005-2011)
Annotation	In this thesis, we cover the related problems of image restoration and depth map estimation from two or more space-variantly blurred images of the same scene in situations, where the extent of blur depends on the distance of scene from camera. This includes out-of-focus blur and the blur caused by camera motion. The latter is typical when photographing in low-light conditions. Both out-of-focus blur and camera motion blur can be modeled by con- volution with a spatially varying point spread function (PSF). There exist many methods for restoration with known PSF. In our case, the PSF is un- known as it depends on depth map of the scene and camera motion. Such a problem is ill-posed if only one degraded image is available. We consider multichannel case, when at least two images of the same scene are available, which gives us additional information that makes the problem tractable.
Workplace	Institute of Information Theory and Automation
Contact	Markéta Votavová, votavova@utia.cas.cz, Tel.: 266 052 201.
Year of Publishing	2008

Number of the records: 1