منابع مشابه
Scanning Projection Grating Moire Topography
One problem with moiré topography for 3D surface metrology is the so called 2π-ambiguity limiting the maximum step height difference between two neighboring sample points to be less than half the equivalent wavelength of moiré fringes. To cope with the ambiguity problem, a special scheme of scanning moiré technique is proposed by resorting to the frequency domain fringe analysis that is in fact...
متن کاملEvaluation of scoliosis screening using Moire topography in school children
Objective Screening of school children for scoliosis is an orthopedic examination that has a direct effect on the health of these children. Screening can be performed using various methods. Since 1983, in our prefecture, we have used Moire topography for screening. The purpose of this study was to evaluate the prevalence rate of scoliosis diagnosed by screening school children using Moire topog...
متن کاملCoupled Plasmonic Cavities on Moire Surfaces
Surface plasmon polariton (SPP) waveguides formed by coupled plasmonic cavities on metallic Moire surfaces have been investigated both experimentally and numerically. The Moire surface, fabricated by interference lithography, contains periodic arrays of one-dimensional cavities. The coupling strength between the cavities has been controlled by changing the periodicities of the Moire surface. Th...
متن کاملMoire Technique in Control of Epidemic Spinal
MOIRE TECHNIQUE IN CONTROL OF EPIDEMIC SPINAL CURVATURE Aleksandra Bujakiewicz, D.Sc., Ph.D. Associate Professor, Surveying Department, University of Zimbabwe, P.O. Box MP 167, Mt. Pleasant, HARARE, Zimbabwe. Commission No. V. In this paper the results of extensive experim~nts dealing with the use of the Moire technique in control of youths' spines are presented. Measurement of the spines of se...
متن کاملSuppression of moire patterns via spectral analysis
In this paper we focus on the detection of moiré patterns, which may appear during film-to-video transfer using Telecine devices. A model of moiré distortion is created and studied. A new suppression algorithm using the spectral model is presented and applied for real video sequences. The non-linear filter is based on analysis of the magnitude of the Fourier spectrum of the image. As an alterna...
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ژورنال
عنوان ژورنال: Orthopedics & Traumatology
سال: 1984
ISSN: 1349-4333,0037-1033
DOI: 10.5035/nishiseisai.33.437