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Circular fringe projection profilometry

WebCircular fringe projection profilometry (CFPP), as a branch of carrier fringe projection profilometry, has attracted research interest in recent years. Circular fringe Fourier transform profilometry (CFFTP) has been used to measure out-of-plane objects quickly because the absolute phase can be obtained by employing fewer fringes. However, the … 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 …

Temporal phase-unwrapping in fringe projection profilometry: …

WebAug 12, 2024 · Fringe projection profilometry (FPP), as a common active optical three-dimensional (3D) measurement technology, has advantages of high-precision, non … 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 on the triangulation formed between the optical axis and the projected light rays of a projector. northampton wellness https://ladysrock.com

Three-dimensional measurement based on optimized …

WebFeb 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 … WebAug 1, 2024 · Fringe projection profilometry is widely used for three-dimensional (3D) measurements. System calibration is crucial to fringe projection systems, since it … WebAbstract 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 … northampton wellingborough

Efficient method for detecting a zero-phase point in off-axis …

Category:Developing a Robust Acquisition System for Fringe Projection Profilometry

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Circular fringe projection profilometry

An Improved Circular Fringe Fourier Transform Profilometry

WebCircular fringe projection profilometry. Hong Zhao, Chunwei Zhang, Changquan Zhou, Kejian Jiang, and Meiqi Fang Opt. Lett. 41(21) 4951-4954 (2016) 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 …

Circular fringe projection profilometry

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WebFeb 4, 2024 · Circular fringe projection profilometry (CFPP) is a recently proposed optical three-dimensional (3D) measurement technique. Theoretically, its optimal measurement accuracy should precede that of the conventional fringe projection profilometry. In practice, the measurement accuracy is impacted by many factors, and … WebIn this Letter, a novel three-dimensional (3D) measurement method, called the circular fringe projection profilometry (CFPP), is proposed. Similar to the conventional fringe …

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 ... WebIn fringe projection profilometry (FPP) based on temporal phase unwrapping (TPU), reducing the number of projecting patterns has become one of the most important works in recent years. To remove the $2\pi $ ambiguity independently, this paper proposes a TPU method …

WebJun 1, 2024 · Fringe projection profilometry (FPP) [1] is an important three-dimensional (3D) measurement technique with the advantages of noncontact, high accuracy, high speed, and simple instrumentation;... WebFeb 4, 2024 · Three-dimensional measurement based on optimized circular fringe projection technique Opt Express. 2024 Feb 4;27 (3):2465-2477. doi: …

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, …

WebAug 12, 2024 · Circular fringe projection profilometry (CFPP), as a branch of carrier fringe projection profilometry, has attracted research interest in recent years. Circular fringe Fourier transform profilometry (CFFTP) has been used to measure out-of-plane objects quickly because the absolute phase can be obtai … northampton wellness clinicWebMar 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 … how to replace a circuit breaker outletWebJan 1, 2016 · A projector with small field of view (FOV) is applied to achieve a full 3D reconstruction in our profilometry system. Experiments with a prototype demonstrate … northampton western australia historyWebCircular 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 … northampton west jobsWebPhase demodulation is an essential image processing stage required by digital fringe projection profilometers. Currently, several approaches for phase demodulation have been proposed. In this work, a set of phase demodulation methods useful for digital fringe projection profilometry is presented. how to replace a clock faceWebJan 1, 2016 · A projector with small field of view (FOV) is applied to achieve a full 3D reconstruction in our profilometry system. Experiments with a prototype demonstrate the validation and accuracy of the proposed calibration algorithm and system configuration. how to replace a citizen watch bandWebNov 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 … northampton west council