| Journal: | Polibits |
| Database: | PERIÓDICA |
| System number: | 000355844 |
| ISSN: | 1870-9044 |
| Authors: | Jiménez, Julio1 Sossa, Humberto1 Cuevas, Francisco2 Gómez, Laura1 |
| Institutions: | 1Instituto Politécnico Nacional, Centro de Investigación en Computación, México, Distrito Federal. México 2Centro de Investigaciones en Optica A.C., León, Guanajuato. México |
| Year: | 2012 |
| Number: | 45 |
| Country: | México |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Analítico, descriptivo |
| English abstract | A parametric method to carry out fringe pattern demodulation by means of a particle swarm optimization is presented. The phase is approximated by the parametric estimation of an «th-grade polynomial so that no further unwrapping is required. A particle swarm is used to optimize the input parameters of the function that estimates the phase. A fitness function is established to evaluate the particles, which considers: (a) the closeness between the observed fringes and the recovered fringes, (b) the phase smoothness and c) the prior knowledge of the object, such as its shape and size. The swarm of particles evolves until a fitness average threshold is obtained. We demonstrate that the method is able to successfully demodulate fringe patterns and even a one-image closed-fringe pattern |
| Disciplines: | Ciencias de la computación |
| Keyword: | Procesamiento de datos, Metrología óptica, Análisis de borde, Recuperación de fase |
| Keyword: | Computer science, Data processing, Optical metrology, Fringe analysis, Phase retrieval |
| Full text: | Texto completo (Ver HTML) |
