| Texto completo | |
| Autor(es): |
Ponti, Moacir P.
;
Mascarenhas, Nelson D. A.
;
Suazo, Claudio A. T.
Número total de Autores: 3
|
| Tipo de documento: | Artigo Científico |
| Fonte: | 2009 XXII BRAZILIAN SYMPOSIUM ON COMPUTER GRAPHICS AND IMAGE PROCESSING (SIBGRAPI 2009); v. N/A, p. 3-pg., 2007-01-01. |
| Resumo | |
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. (AU) | |
| Processo FAPESP: | 02/07153-2 - Algoritmos para a reconstrução tomográfica: otimização, restauração, quantificação e aplicação |
| Beneficiário: | Sergio Shiguemi Furuie |
| Modalidade de apoio: | Auxílio à Pesquisa - Temático |