Simplified production of spatial inverse filters

Autor:	Hermann Weiss, Rolf Linde, William J. Dallas
Rok vydání:	2009
Předmět:	Physics Point spread function Logarithm Spatial filter business.industry Holography Physics::Optics Inverse Image processing Atomic and Molecular Physics and Optics law.invention Nonlinear system symbols.namesake Optics Fourier transform law symbols business Algorithm
Zdroj:	Optics letters. 3(6)
ISSN:	0146-9592
Popis:	A logarithmic nonlinearity in the transmittance-versus-exposure curve of a photographic material can greatly simplify holographic fabrication of inverse filters. We present here two filter-production methods utilizing this non-linearity, which produce relatively high-dynamic-range inverse filters. Confirming computer simulations and coherent-optical experiments are presented.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4c86e1d07cf369893daa28d951cfa11d https://pubmed.ncbi.nlm.nih.gov/19684762 Zobrazit plný text záznamu