| Texto completo | |
| Autor(es): |
da Silva, Gustavo Lelis
;
Stolfi, Jorge
;
da Gama Leitao, Helena Cristina
;
DeCeglia, D
;
Raposo, M
;
Albella, P
;
Ribeiro, P
Número total de Autores: 7
|
| Tipo de documento: | Artigo Científico |
| Fonte: | PROCEEDINGS OF THE 10TH INTERNATIONAL CONFERENCE ON PHOTONICS, OPTICS AND LASER TECHNOLOGY (PHOTOPTICS); v. N/A, p. 8-pg., 2021-01-01. |
| Resumo | |
Multifocal microscopy is an established technique to combine several reflected-light microscopy images of an object, each with a limited depth of focus, into a single image that shows the whole object in focus. Photo-metric stereo is an independent technique to recover the third dimension of an opaque object, given several images taken from the same viewpoint with different illumination conditions. We describe a low-cost motorized positioning device for the automatic acquisition of multiple reflected-light low-power microscope images of an object for combined multifocal and photometric stereo capture of millimeter-scale objects. The device automatically varies the microscope-to-object distance and the light direction, under control of an Arduino microcontroller. The device consists of a supporting frame, a microscope holder with motorized vertical displacement, an illumination stage with multiple light sources, and control electronics. The mechanical and structural parts are largely 3D-printed. The electronics is based on the Arduino microcontroller. The device is driven through an USB cable by a Python program that runs on a PC. (AU) | |
| Processo FAPESP: | 13/07699-0 - Centro de Pesquisa, Inovação e Difusão em Neuromatemática - NeuroMat |
| Beneficiário: | Oswaldo Baffa Filho |
| Modalidade de apoio: | Auxílio à Pesquisa - Centros de Pesquisa, Inovação e Difusão - CEPIDs |