Topic
Moiré pattern
About: Moiré pattern is a research topic. Over the lifetime, 1917 publications have been published within this topic receiving 27176 citations. The topic is also known as: moiré fringes & moire pattern.
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TL;DR: In this paper, a three-dimensional measurement method based on frequency-carrier computer-generated moire fringe is proposed, where two sinusoidal gratings with π phase difference each other are projected onto the measured object respectively and capturing the corresponding deformed patterns, the AC component of the deformed pattern can be extracted.
4 citations
29 Dec 1999
TL;DR: In this paper, two RGB sensor and two RG-BG sensors were combined to provide a moire-the first one with RGB sensor, the second one with the RGBG sensors, both with the Siemens' star.
Abstract: If two patterns are combined with each other they create a pattern of their own. Interference between two sets of fine pattern grids, the scanner samples and the geometric structure in the original image cause moire patterns. These artifacts are generally accepted as an inevitable quality degradation of the screening process. In this paper two patterns were combined to provide a moire- the first one with RGB sensor, the second one with the RG-BG sensors, both with the Siemens' star.
4 citations
21 Jun 2004
TL;DR: The working principle, theoretical arithmetic, configuration design, test method and acquired data by digital grating sensor are presented and the packaging technology is also simplified.
Abstract: Digital grating sensor of vibration measurement is a pattern of geophone, which picks up seismic signals with grating vibrator. Along with the request of higher precision method to identify more complex geological targets, higher precision and accurate information of oil reservoirs underground must be provided through geophysical technologies for reservoirs prospecting and developing. By digital grating sensor of vibration measurement, mechanical vibrating signal of the seismic wave can be transformed into light modulating signal - moire fringes, and then converts by photoelectric element to digital electrical signal. The sensor samples the signal by counting the numbers of the moire fringes, which may prevent quality of the output data from being influenced by electric circuits, and the packaging technology is also simplified. The working principle, theoretical arithmetic, configuration design, test method and acquired data by digital grating sensor are presented in the paper.
4 citations
TL;DR: In this article, the transmission moire pattern is two-dimensional autocorrelation of transmission function (2D-ACTF) of two superimposed linear gratings that make a small angle with each other.
4 citations
TL;DR: In this article, a simple implementation of the digital Fourier transform holographic setup is used to produce these interference patterns, which could have promising applications in relevant optical interferometric fields such as profilometry, as demonstrated here, along with other industrial optomechanical applications.
4 citations