Exploring the Opencv Library for Image Processing in Long-Pulse Thermography

Autor(es)

Rabelo Faria, Jose Jeronimo ^[1] ; de Faria, Alfredo Rocha ^[1]

Afiliação do(s) autor(es)

^[1] Inst Tecnol Aeronaut, Dept Engn Mecan, Praca Marechal Eduardo Gomes 50, BR-12228900 Sao Jose Dos Campos, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS; v. 24, n. 2 2021.
• Citações Web of Science: 0

Resumo

The objective of the present paper is to propose a framework, utilizing the OpenCV library, for post-processing infrared images obtained using Long-Pulse Thermography (LPT), with the goal of segmenting the images into defective and sound areas. A series of thermograms of a carbon fiber/epoxy specimen, containing precision milled flat-bottom holes, was acquired using an LPT system comprised of an uncooled microbolometer imager and halogen optical sources. Flaw detectability and planar size estimation were used to evaluate the results obtained with the proposed post-processing framework, in comparison to raw images, and images subjected only to pre-processing algorithms. (AU)

• Processo FAPESP: 19/00917-8 - Falha induzida por instabilidade em compósitos estruturais sob compressão longitudinal
• Beneficiário: Alfredo Rocha de Faria
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 18/26122-9 - Análise de defeitos internos em materiais compósitos via termografia ativa
• Beneficiário: Eduardo Torres Novais
• Modalidade de apoio: Auxílio à Pesquisa - Pesquisa Inovativa em Pequenas Empresas - PIPE