2009
DOI: 10.1016/j.biosystemseng.2008.09.031
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Suppression of border effects in moiré techniques using three-dimensional methods

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Cited by 7 publications
(5 citation statements)
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“…Figure 3 shows the 3D result of the correction using the unwarping method for one of the fruits. The threedimensional representation of half the fruit shows a smooth surface, without noise and without problems of discontinuity on the edges, as questioned by Braga et al (2009), evidencing that the use of only one camera associated with digital correction can overcome the problems caused by the perspective. The correction or "unwarping" is a necessary step for the improvement of images, according to Gholipour et al (2011) and Sevegnani et al (2005).…”
Section: Resultsmentioning
confidence: 99%
See 1 more Smart Citation
“…Figure 3 shows the 3D result of the correction using the unwarping method for one of the fruits. The threedimensional representation of half the fruit shows a smooth surface, without noise and without problems of discontinuity on the edges, as questioned by Braga et al (2009), evidencing that the use of only one camera associated with digital correction can overcome the problems caused by the perspective. The correction or "unwarping" is a necessary step for the improvement of images, according to Gholipour et al (2011) and Sevegnani et al (2005).…”
Section: Resultsmentioning
confidence: 99%
“…Profilometry, for being a powerful tool in the determination of forms and surfaces, allows the classification and evaluation of materials with distinct forms and behaviors (Srinivasan et al, 1985). Among various techniques for the construction of profilometry, the Moiré technique can be considered as a theoretical basis for many methods and digitalization equipment (Sciammarella, 1982;Braga et al, 2009).…”
Section: Introductionmentioning
confidence: 99%
“…A técnica de Moiré já vem sendo empregada em alguns ramos da engenharia agrícola, tais como, criar modelos digitais, na reconstrução da superfície de maçãs (BRAGA et al, 2009). Lino A sequência de processamento de imagens dos corpos de prova (laranja e corpo esférico de plástico) foi realizada da seguinte forma: primeiramente obtiveram-se os dados dimensionais em pixels da esfera de plástico obtidos pela técnica de Moiré e os dados dimensionais obtidos pelo paquímetro para estabelecer a relação pixel/cm.…”
Section: Introductionunclassified
“…In agriculture, Funnell and Decraemer (1998) used MT to study of the topography of cats tympanis. Braga et al (2009) proposed a 3D protocol to obtain digital images using projection moiré. Shitakubo et al (2003) used the projection of MT for modelling physical characteristics of fish.…”
Section: Introductionmentioning
confidence: 99%