Binary fringe
WebMay 23, 2024 · a quasi-sinusoidal fringe, the squared binary pattern needs to be defocused. A simulation is presented here to show the effectiveness of binary defocusing. A Gaussian convolution is applied to simulate the defocusing with the kernel modeled as () πσ σ =− + g xy xy, 1 2 exp 2. 2 22 (1) Here, σ is the standard deviation of the filter kernel ... WebJul 15, 2024 · Robust binary fringe generation method with defocus adaptability Current …
Binary fringe
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WebPhase shifting profilometry (PSP) using binary fringe patterns with projector defocusing is promising for high-speed 3D shape measurement. To obtain a high-quality phase, the projector usually requires a high defocusing level, which leads to … WebNov 4, 2024 · Abstract. The optimization-based binary fringe generation method can …
WebNormal fringe pattern is represented by a pure binary-code pattern which is commonly utilized in image processing. Thus, the triangular fringe pattern sequence is projected on the surface of testing targets. The wrapped phase values are calculated by applying seven-step phase-shifting calculation in equation (2). WebApr 11, 2024 · 3.Design of the pattern. This section introduces a method for generating a tricolor binary RGB fringe pattern that ensures accurate and dense depth measurement, as shown in Fig. 3.Considering the practicability of the proposed method, a tricolor binary pattern is designed to avoid the non-sinusoidal problem caused by directly captured …
WebJan 1, 2024 · Current patch-based binary fringe patterns are periodic and carry strong … WebJun 10, 2024 · Binary coding is a simple and widely used technique that encodes the fringe order into a sequence of binary patterns. Specifically, if every fringe period corresponds to a unique code word that consists of binary intensities in a sequence of patterns, then the fringe order is determined by the code word.
WebAug 3, 2024 · The binary defocusing fringe projection profilometry (FPP) technique has demonstrated various advantages for high-speed and high-accuracy three-dimensional (3D) surface measurement. However, higher fringe frequency does not necessarily give better measurements in binary defocusing FPP.
WebMay 26, 2024 · Two computer-generated Moiré fringes are as shown in Fig. 5 e. Finally, the 3D shape of the measured star model can be reconstructed, and the reconstructed result is shown in Fig. 5 f. It can be... iowa city iowa cost of livingWebIn this Letter, a new infrared phase measuring deflectometry (PMD) based on defocused … ool steamship lineWebApr 1, 2024 · The binary defocusing technique has been proven successful for high-quality 3D shape measurements with relatively low fringe periods. Nevertheless, this technique suffers when the fringe period is large [27]. iowa city iowa code of ordinancesWebFeb 1, 2005 · A color-coded binary fringe projection technique that solves the … ool pharmaWebNov 1, 2014 · Binary fringe defocused projection can resolve the problem caused by the … iowa city internetWebNov 24, 2024 · In this paper, we present a kernel-optimized dithering technique based on the Floyd–Steinberg dithering method and establish an optimization strategy considering both intensity and phase aspects to generate high-quality sinusoidal fringes for 3D measurement by utilizing the binary defocusing technique. ool shootingWebMay 11, 2024 · The method consists in generating a binary pattern in the form of a synthetic off-axis hologram and its further reconstruction. The fringes in an analog hologram can be used to change the phase... oolong wish