Digital fringe projection profilometry
WebNov 23, 2024 · This paper proposes to build the digital twin of an FPP system and perform virtual scanning using computer graphics, which can significantly save cost and labor and extracts 3D geometry directly from a single-shot fringe image. High-accuracy and high-speed three-dimensional (3D) fringe projection profilometry (FPP) has been widely … WebIn fringe projection profilometry, high-order harmonics information of distorted fringe will lead to errors in the phase estimation. In order to solve this problem, a point-wise phase estimation method based on a neural network (PWPE-NN) is proposed in this paper. The complex nonlinear mapping relationship between the gray values and the phase under …
Digital fringe projection profilometry
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WebOct 10, 2013 · Existing digital fringe projection (DFP) systems mainly use either horizontal or vertical fringe patterns for three-dimensional shape measurement. This paper reveals … Over the past few years, we have been developing techniques for high-speed … A fringe projection based quantitative three-dimensional microscopy (FP-3DM) is … The imaging model of a camera with a telecentric lens can be illustrated by Fig. … Digital fringe pattern projection. As previously stated, the advent of low-cost … 1. Introduction. With the recent advancement in digital display devices, … Fig. 1 shows the optical geometry for the fringe projection and imaging system … This paper presents a shape measurement method based on the use of a long … Spatio temporal phase unwrapping for the measurement of discontinuous objects … As a fringe sweeps by the detector, the counter is unchanged, incremented, or … Fringe projection profilometry (FPP) is a powerful method for three-dimensional …
WebJan 5, 2024 · In many fields such as experimental mechanics and optics, the fringe projection profilometry (FPP) and the 3D digital image correlation (3D-DIC) methods are among the most established and widely used 3D imaging and shape measurement techniques owing to their robustness and accuracy [25–32]. The FPP technique, a kind … WebFeb 1, 2024 · Digital fringe projection profilometry: a) schematic diagram . and b) photograph. Fig.2. Projective fringe patterns with a) sinusoidal, b) square, and . c) triangular periodic waveforms. Cross ...
WebMay 6, 2024 · There are many optical methods for extracting the geometric information of an object from an image. The structured light method based on digital fringe projection is … WebNov 23, 2024 · The proposed method extracts 3D geometry directly from a single-shot fringe image, and real-world experiments have demonstrated the success of the …
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WebJan 13, 2024 · Digital fringe projection profilometry utilizes a digital video projector as a structured light source and thus gains great flexibility. However, the gamma nonlinearity of the video projector ... life beyond the farmWebAug 28, 2006 · Simulations and experiments show that the proposed DCT-SE is a fast, accurate, and efficient reconstruction algorithm for digital projection- based fringe … life beyond the sea reekayWebAug 28, 2006 · Simulations and experiments show that the proposed DCT-SE is a fast, accurate, and efficient reconstruction algorithm for digital projection- based fringe pattern profilometry techniques. Read ... life beyond gameplayWebApr 11, 2024 · PDF Fringe projection profilometry (FPP) has been broadly applied in three-dimensional (3D) measurements, but the existing multi-shot methods, which... Find, read and cite all the research you ... life beyond the neutral zoneWebMay 14, 2024 · Fringe projection profilometry (FPP) is a three-dimensional (3D) surface imaging technique that employs optical deflectometry to detect surface morphology of specular objects 1.The technique has ... life beyond the shadowsWebMay 10, 2004 · Digital fringe projection profilometry utilizes a digital video projector as a structured light source and thus gains great flexibility. However, the gamma … mcmurray lane port hopeWebJul 5, 2024 · Digital fringe projection profilometry (DFPP) is one of the most widely used techniques in optical 3D shape measurement [1, 2]. It has the merits of high speed, high resolution and high accuracy . After decades of development, diverse industrial implementations of DFPP have been achieved [4, 5]. The performance assessment of … mcmurray lab miami university