Original title: Simultaneous recovery of scene structure and blind restoration of defocused images
Translated title: Odhad hloubkové mapy a současná slepá dekonvoluce obrazů rozmazaných defokuzací
Authors: Šorel, Michal ; Flusser, Jan
Document type: Papers
Conference/Event: Computer Vision Winter Workshop 2006, Telč (CZ), 2006-02-06 / 2006-02-08
Year: 2006
Language: eng
Abstract: [eng] [cze]
We present an algorithm that uses two or more defocused images of the same scene for recovery of scene structure and simultaneous restoration of sharp image. Defocousation is modeled by convolution with arbitrary known spatially-variant mask unlike the vast majority of published algorithms that used cylindrical or Gaussian masks. In this way it is able to deal with aberrations present in real optical systems. The mask can be given analytically ro by a table or a ray tracing algorithm. Odhad hloubkové mapy a současná slepá dekonvoluce ze dvou obrazů rozmazaných defokuzací. Defokuzace je modelovaná konvolucí s prostorově proměnou maskou, díky čemuž je algoritmus schopný pracovat s aberacemi v realných optických soustavách. Maska může být zadána analyticky nebo tabulkou vygenerovanou algoritmem užívajícím sledování paprsku.
Keywords: deconvolution; depth from defocus; point-spread function; shift-variant blind restoration
Project no.: CEZ:AV0Z10750506 (CEP), 1M0572 (CEP), GA102/04/0155 (CEP)
Funding provider: GA MŠk, GA ČR
Host item entry: Proceedings of the Computer Vision Winter Workshop 2006. CVWW' 06, ISBN 80-239-6530-1

Institution: Institute of Information Theory and Automation AS ČR (web)
Document availability information: Fulltext is available at external website.
External URL: http://library.utia.cas.cz/separaty/historie/sorel-0031188.pdf
Original record: http://hdl.handle.net/11104/0131944

Permalink: http://www.nusl.cz/ntk/nusl-35164


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Research > Institutes ASCR > Institute of Information Theory and Automation
Conference materials > Papers