Moiré topography: Characteristics and clinical application

Porto, Flávia; Gurgel, Jonas Lí­rio; Russomano, Thaís; Farinatti, Paulo

doi:10.1016/j.gaitpost.2010.06.017

Cited by 58 publications

(58 citation statements)

References 9 publications

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“…Rev Bras present and the low angular value is the beginning of a scoliosis. As scoliosis below 10 o are imperceptible to physical examination, the MT confirmed to be a method of easy detection of low angular value scoliosis and the data are in accordance to the literature [9][10][11][12][13] , which deviation of half-fringe in region W1 was detected in 70.3% of subjects.…”

Section: Discussionsupporting

confidence: 86%

“…The light fell on the Moire plate at 45 o ( Figure 1). All components of MT respected the Takasaki equation 9,13 .…”

Section: Methodsmentioning

confidence: 99%

“…Among the techniques for evaluation of scoliosis, we can highlight the Moiré topography, which bases its analysis through a phenomenon of shadow projection derived from optical, wherein the light projected on the back, passes through a plate and this way lines are formed, first in a reference plane, and then on the body surface, delineating surface topographically 9,13 . Through "fringes"and according to the asymmetry of the shadows, scoliosis is detected.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Estereofotografia de Moirè: uma alternativa para avaliação da escoliose na saúde de escolares

Silva

Almeida

Costa

et al. 2014

J. Hum. Growth Dev.

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A Estereofotografia de Moiré (EFM) é um método que através da assimetria das sombras formadas no dorso detecta escoliose. Poucos os estudos tem discutido o tempo de análise, interpretação e custo operacional desta técnica. Os objetivos deste trabalho foram analisar os aspectos operacionais da (EFM) em escolares e; verificar desvios posturais pela EFM nesse mesmo grupo. Neste estudo foram analisadas 58 meninos e através da EFM, foram avaliadas a presença de sombras (franjas) no dorso, onde cada assimetria corresponde cerca de 10º no ângulo de Cobb. As marcações do EFM foram utilizadas para determinar os possíveis desvios. Os dados interesse receberam tratamento estatístico descritivo nas variáveis massa corporal total, índice de massa corporal (IMC), estatura, escoliose, tempo médio de análise e diagnóstico e, uma avaliação do custo operacional do equipamento. Os sujeitos (9,91 ± 0,79 anos) apresentaram uma massa corporal total de 37,83 ± 10,45kg, estatura 1,42 ± 0,11m e o IMC de 18,53 ± 4,15 kg/m2. O tempo médio para análise foi de 3,25 ± 0,29min. Na amostra, 75% tiveram um desvio de até uma franja na região toracolombar o que indica uma escoliose menor que 10º. A EFM constituiu um método rápido e de baixo custo operacional podendo ser um instrumento importante no rastreamento de escoliose. Concluímos que a EFM de confirmou ser prático e de fácil manuseio que 94,6% dos sujeitos apresentaram escoliose. Os nossos dados sugerem que a é viável a inserção da EFM nos programas de saúde em escolares de detecção das escolioses.

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Section: Discussionsupporting

confidence: 86%

“…The light fell on the Moire plate at 45 o ( Figure 1). All components of MT respected the Takasaki equation 9,13 .…”

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Estereofotografia de Moirè: uma alternativa para avaliação da escoliose na saúde de escolares

Silva

Almeida

Costa

et al. 2014

J. Hum. Growth Dev.

View full text Add to dashboard Cite

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“…All of the measurements were conducted according to commonly accepted principles and guidelines [17]. The moiré method is based on the principle of light beam refraction between the grid screen and its generated shadow, which is projected onto the patient who is positioned behind the screen.…”

Section: Measurement Systemmentioning

confidence: 99%

The development of anterior-posterior spinal curvature in children aged 7–12 years

Drzał–Grabiec

Snela

Truszczyńska

2016

Biomedical Human Kinetics

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SummaryStudy aim: Body posture changes depend on numerous factors. The purpose of this study was to assess the changes in posture in the sagittal plane of children aged 7-12 years. Material and methods: Postural changes were determined by assessing the postural parameters in the sagittal plane. The measurements were recorded in children attending selected primary schools. In total, 562 subjects were included in the study, including 278 boys and 284 girls. The body posture was assessed photogrammetrically based on the moiré effect, whereby 5 postural parameters were integrated within the measurement methodology. Results:The results indicated a naturalistic tendency in postural development -the postural parameters changed with age in a dynamic fashion; and the postural measurements for boys and girls differed in terms of their range. Conclusions:The study findings can be used for the accurate mapping of normal postural development and, inter alia, for the detection and diagnosis of an emerging abnormal posture. Importantly, a correct postural assessment algorithm for children should include the subject's age and sex.

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“…The reconstitution of a topographic contour with symmetrical or asymmetrical geometry is applied to various fields of sciences, such as biology, orthopedics, human prosthetics and orthotics, medical diagnostics [7], predicting surgical outcomes, veterinary medicine, quality control and industrial inspection, reverse engineering, mathematical modeling, solid mechanics, structural design, machine elements, robotics and machine vision. Moiré techniques have also been developed and applied for deformation measurements on the nanometer scale [8].…”

Section: David Publishingmentioning

confidence: 99%

The Efficiency of the Moiré Technique for Three-Dimensional Measures of Grape Bunches

Fracarolli¹,

Suzigan²,

Fabbro³

2016

JAST-B

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Abstract:This study was carried out in the University of Campinas to study the three-dimensional reconstruction of grape bunches through the application of the Moiré technique as an alternative and innovative method, using low-cost equipment for data acquisition. This study proposed the three-dimensional visualization of grapes and topography on X i axes through the Moiré projection technique. The artificial grapes with a 20 cm long bunch and 18.45 mm average diameter for each grape were used. A projector was used to generate a grid with light and dark lines. The grape bunch was placed on a holder, illuminated by a sinusoidal grid and photographed. After processing the images, a three-dimensional map of the fruit and topography on X i axes were obtained. The three-dimensional fruit observation allows the visualization of the higher and lower regions of the three-dimensional configuration through a color map. This result makes it possible to obtain size and shape of the grape bunch, allowing for the process automation of product selection and classification.

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Moiré topography: Characteristics and clinical application

Cited by 58 publications

References 9 publications

Estereofotografia de Moirè: uma alternativa para avaliação da escoliose na saúde de escolares

Estereofotografia de Moirè: uma alternativa para avaliação da escoliose na saúde de escolares

The development of anterior-posterior spinal curvature in children aged 7–12 years

The Efficiency of the Moiré Technique for Three-Dimensional Measures of Grape Bunches

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