Circular fringe projection profilometry
WebTemporal phase-unwrapping methods for fringe projection profilometry, mainly represented by the multi-frequency and multi-wavelength classes, are fundamental to recovering the 3D information from the continuous phase, also allowing measure discontinuities and isolated objects. In this paper, it is proposed a temporal phase … WebSep 21, 2014 · Abstract Industrial metrology and inspection systems commonly rely on phase measurement profilometry (PMP) using sinusoidal fringe patterns projecting, yielding dense, and accurate 3D reconstruction regardless of the presence of texture.
Circular fringe projection profilometry
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WebNov 1, 2016 · In [15], circular fringe projection profilometry (CFPP) was presented to accomplish 3D measurement. CFPP can be regarded as a variant of FPP which is called … WebNov 1, 2016 · In this Letter, a novel three-dimensional (3D) measurement method, called the circular fringe projection profilometry (CFPP), is proposed. Similar to the conventional …
WebSep 6, 2024 · Circular fringe projection profilometry (CFPP) is a special kind of FPP with telecentric lenses [35–37]. The specialty lies in that CFPP recovers the 3D profile based … WebMay 15, 2024 · We report that fringe projection profilometry is a well-established technique for optical 3D shape measurement. However, in many applications, it is desirable to make 3D measurements at very high speed, especially with fast moving or shape changing objects. In this work, we demonstrate a new 3D dynamic imaging technique, …
WebMar 1, 2024 · Typically there are 3 phase shifting directions and they are 1) one-direction FPP, i.e. phase directly shifting along a fixed angle, 2) two-direction FPP, i.e. phases … WebIn phase-shifting fringe projection profilometry, the projector nonlinearity has been recognized as one of the main error-inducing factors, especially when only very few fringe patterns are available. For solving this issue, this paper presents a simple and effective method, that allows us to recognize and remove, directly from a calculated ...
WebAug 12, 2024 · Fringe projection profilometry (FPP), as a common active optical three-dimensional (3D) measurement technology, has advantages of high-precision, non …
WebCircular fringe Fourier transform profilometry (CFFTP) based on a triangulation system has the capability of whole out-of-plane measurement using fewer fringes. To the best of … churchillkentthomas gmail.comWebIn 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 … churchill keep calmWebAbstract In fringe projection profilometry (FPP), temporal phase unwrapping is an essential procedure to recover an unambiguous absolute phase even in the presence of large discontinuities or spatially isolated surfaces. So far, there are typically three groups of temporal phase unwrapping algorithms proposed in the literature: multi-frequency … churchill justiceWebMar 1, 2024 · In this paper, based on the extended epipolar geometry, we propose circular fringe projection profilometry to overcome the direction issue without doubling the … devon and blakely charlotte menuWebIn this Letter, a novel three-dimensional (3D) measurement method, called the circular fringe projection profilometry (CFPP), is proposed. Similar to the conventional fringe … churchill keep buggering onWebJun 1, 2024 · Abstract Since Fringe Projection Profilometry (FPP) is an intensity-based coding strategy, it is prone to improper optical setup arrangement, surface texture and reflectance, uneven illumination distribution, among others. These conditions introduce errors in phase retrieval which lead to an inaccurate 3-D reconstruction. devon and blakely foggy bottom dcWebFeb 26, 2024 · Circular fringe projection profilometry (CFPP) is a special kind of FPP with telecentric lenses [ 35 – 37 ]. The specialty lies in that CFPP recovers the 3D profile … churchill kennels cornwall