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		<citationkey>PontiJrMascSuaz:2007:ReExIt</citationkey>
		<author>Ponti Junior, Moacir P.,</author>
		<author>Mascarenhas, Nelson D. A.,</author>
		<author>Suazo, Claudio A. T.,</author>
		<affiliation>Departamento de Computação - Universidade Federal de São Carlos</affiliation>
		<affiliation>Departamento de Computação - Universidade Federal de São Carlos</affiliation>
		<affiliation>Departamento de Engenharia Química - Universidade Federal de São Carlos</affiliation>
		<title>A Restoration and Extrapolation Iterative Method for Band-limited Fluorescence Microscopy Image</title>
		<conferencename>Brazilian Symposium on Computer Graphics and Image Processing, 20 (SIBGRAPI)</conferencename>
		<year>2007</year>
		<editor>Falcão, Alexandre Xavier,</editor>
		<editor>Lopes, Hélio Côrtes Vieira,</editor>
		<booktitle>Proceedings</booktitle>
		<date>Oct. 7-10, 2007</date>
		<publisheraddress>Los Alamitos</publisheraddress>
		<publisher>IEEE Computer Society</publisher>
		<conferencelocation>Belo Horizonte</conferencelocation>
		<keywords>Image Restoration, Super-resolution, Fluorescence Microscopy.</keywords>
		<abstract>Optical microscopic images, especially with a nonconfocal microscope, are fundamentally limited because the optical transfer function (the Fourier transform of the point-spread function) is zero over a region of the spatial-frequency domain. Iterative algorithms were developed for the restoration and extrapolation of diffraction-limited imagery. In this paper we present the effectiveness of an iterative method based on the Richardson-Lucy algorithm for image restoration and a simultaneous modified version of Gerchberg-Papoulis method to extrapolate the spectrum and control the noise amplification. Good convergence stabilization results were achieved and also good numerical results were observed.</abstract>
		<language>en</language>
		<tertiarytype>Full Paper</tertiarytype>
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