PROGRAMA - CBMO
ISBN: 978-65-994975-9-9
(Palestras e Apresentações Orais)
QUARTA-FEIRA
14 h – 14 h 20 min
| Ruy Soares (Welight) |   |
14 h 20 min – 14 h 40 min
| Silvia Maria Carneiro de Campos |  |
14 h 40 min – 15 h
| Claudia Amorim (UNB) |   |
15 h – 15 h 20 min
| Giovanna Borghi Almeida (Inmetro) |   |
15 h 20 min – 15 h 40 min
| Sandra Batista Guarda (Auxtrat) |   |
15 h 40 min – 16 h
16 h 40 min – 17 h
[309208] An accurate double-faced optical-interferometric strategy for estimation of gauge block Fo/Fu dimensional variations
Autores: Ricardo dos Santos França
Resumo: A new and fast calculation method for length variations or Fo/Fu, as estimations for gauge blocks, uses a double-face-wringing interferometric approach, through length scanning of their five center and corner points, as defined through their optical inspection in both opposite gauge measurement surfaces. This method achieves realistic dimensional/bidirectional length definitions for such dimensional standard parameters as obtained by optical measurements.
17 h – 17 h 20 min
[329698] Evaluation of the influence of digital camera acquisition parameters for the accuracy of colorimetric measurements
Autores: A E Moura , G S Barcelos , J M Napolitano , L C Dias , I L R Amorim , P B Costa
Resumo: Law 9,972 of 2000 instituted the classification of vegetable products, byproducts, and waste of economic value, making their classification mandatory when intended for human consumption, in purchase and sale operations, and at ports and airports when destined for export. The classification of these vegetables consists of separating the product into different categories of quality according to their peculiarities, forming homogeneous batches, as well as determining the quality based on official standards. Among the quality standards to be observed in this classification process are shape, size, weight, defects in the skin, and color, which will be the focus of this work. Currently, much of this classification process is carried out manually, based on the knowledge and experience of operators. With a focus on automating this type of process, studies in the field of computer vision are being developed with the aim of autonomously reproducing the classification of fruits and vegetables usually carried out by trained operators. However, in various applications in the current literature, digital cameras are used to extract quantitative measurements. These pieces of information require metrological analyses like any other conventional measurement system. In this sense, the present paper proposes a study to evaluate the errors in the application of a digital camera for color measurement. Results will be shown from tests comparing numerical aperture, exposure time, and ISO parameters with the results of a colorimeter using a color chart as a measurand. The goal is to evaluate the accuracy and estimate the error curves of a conventional sensor when applied to color metrology. This study is an important step in ensuring the reliability of color measurements using digital cameras for automatic fruit and vegetable classification systems.
17 h 20 min – 17 h 40 min
[306307] Calibração de lâmpadas incandescentes em temperatura de cor correlata por espectrorradiometria e abordagem por Monte Carlo –
Autores: Thiago Ferreira da Silva
Resumo: O sistema de espectrorradiometria do Instituto Nacional de Metrologia, Qualidade e Tecnologia – Inmetro é utilizado para calibração de lâmpadas incandescentes em irradiância espectral por comparação. Os resultados no espectro visível podem ser utilizados para a determinação da temperatura de cor correlate (TCC). Este trabalho apresenta a metodologia empregada e os resultados obtidos na determinação da TCC de lâmpadas incandescentes a partir do sistema de irradiância espectral, incluindo a incerteza pela abordagem de Monte-Carlo. Os resultados foram validados no intervalo de 2000 K a 3200 K utilizando-se uma lâmpada com TCC conhecida e permitem a retomada da oferta do serviço de calibração.
17 h 40 min – 18 h
[301008] Overview of the status of the development of an OCT probe for the diagnosis of precursor cancer lesions in the uterine colon
Autores: Andrew Henry Cordes, Jean Pierre von der Weid, Ana Paula Dornelles De Alvarenga, Iakyra Borrakuens Couceiro, Christian Tolentino Dominguez, Igor Malinovsky, Cecilia Vianna de Andrade, Fábio Bastos Russomano
Resumo: Optical Coherence Tomography (OCT) is used to generate images of uterine tissue capable of being compared with those obtained by light microscopy in post processed slides. Based on commercial instruments, the paper shows OCT images of the precursor lesions of cervical cancer. SD-OCT images were taken on cervical ex vivo samples and compared with histology images of the same samples in order to optimize the images obtained to maximize ease of classification. For the application of the technique in the real time exam (in vivo) at the doctor’s office, a probe has been developed which is capable of being adapted to commercially available instruments to be inserted as an auxiliary tool in the colposcopic and stereoscopic examinations. In-vivo measurements using this probe are being planned.
SESSÃO DE PÔSTER 1
16 h - 16 h 40 min
QUARTA-FEIRA
29/11
303770
Adaptação de algoritmos na segmentação e classificação de esferoides celulares em imagens de tomografia de coerência óptica (OCT)
Autores: Aldo Patrick Assumpção Corrêa, José Mauro Granjeiro, Leonardo da Cunha Boldrini Pereira, Guilherme de Almeida Miranda, Leandra Baptista, Ana Paula Dornelles de Alvarenga, Iakyra Borrakuens Couceiro
305998
Calibration system for polarization mode dispersion (PMD) of optical fibers
Autores: Thiago Ferreira da Silva, Giovanna Borghi de Almeida
305997
Caracterização de espectrorradiômetro para calibrações e ensaios fotométricos e colorimétricos
Autores: Thiago Ferreira da Silva, André S. Sardinha
311297
Desenvolvimento de sistema de calibração de células solares de referência rastreado a padrões radiométricos nacionais
Autores: Thiago Ferreira da Silva
309206
Evaluation of the systematic effects in Mitutoyo short gauge interferometer related to optics and imaging
Autores: Walter Oliveira Jr., Igor Malinovski, Ricardo dos Santos França, Iakyra Borrakuens Couceiro
311299
Modernização de radiômetro de filtro para realização da escala de irradiância espectral
Autores: Priscila Azevedo Costa Bessa, Elisama Melo da Silva Carvalho, Thiago Ferreira da Silva
300097
Proposta de abordagem conceitualmente simples para estimativa de incertezas de grandezas colorimétricas obtidas a partir de distribuições espectrais
Autores: Ivo Ázara, Thiago Menegotto
300104
Proposta de abordagem conceitualmente simples para estimativa de incertezas do índice Ra de reprodução de cores
Autores: Ivo Ázara, Thiago Menegotto
301012
Realização da unidade lúmen no Inmetro
Autores: André da Silva Sardinha
303492
Update of Inmetro’s Primary Spectral Regular Transmittance Calibration System
Autores: Willian Anderson Tavares de Sousa, Thiago Ferreira da Silva
303135
Validação do método de determinação da temperatura na placa de quartzo no polarímetro do Laopt
Autores: Marcelo Bezerra Guedes, Ana Paula Dornelles de Alvarenga