Results 1 to 10 of about 777 (123)

Fringe Projection Profilometry Based on Saturated Fringe Restoration in High Dynamic Range Scenes [PDF]

open access: yesSensors (Basel), 2023
In high dynamic scenes, fringe projection profilometry (FPP) may encounter fringe saturation, and the phase calculated will also be affected to produce errors.
Peng Tian   +7 more
core   +2 more sources

Fringe Projection Profilometry in Production Metrology: A Multi-Scale Comparison in Sheet-Bulk Metal Forming [PDF]

open access: yesSensors (Basel), 2021
Fringe projection profilometry in combination with other optical measuring technologies has established itself over the last decades as an essential complement to conventional, tactile measuring devices.
Müller, Philipp   +31 more
core   +6 more sources

An Improved Circular Fringe Fourier Transform Profilometry [PDF]

open access: yes, 2022
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 ...
Han, Mengqi   +7 more
core   +1 more source

A Separation Method of Superimposed Gratings in Double-Projector Fringe Projection Profilometry Using a Color Camera [PDF]

open access: yes, 2021
Fringe projection profilometry has been intensively studied for several decades. However, due to the limitation of the field range of a single projector, when measuring objects with complex surfaces, there are always shadow areas in the captured images ...
Xinghua Qu   +3 more
core   +1 more source

Fiber-based high-speed fringe projection profilometry [PDF]

open access: yes
Phase shift profilometry has become a standard technique for recording the surface of an object using the projection of sinusoidal patterns. We present a method of projecting the patterns via a pair of single-mode optical fibers mounted within a needle ...
Johnson, Steven   +3 more
core   +12 more sources

Characteristics of phase-shifting projected fringe profilometry using 2D fringe projections in the tele-centric system [PDF]

open access: yes, 2023
This paper proposes the use of a two-dimensional fringe pattern integrated into a centrifugal system to improve the inability of traditional fringe projection profilometry to measure the surface discontinuities of test objects.
Lin, Cheng-Yueh
core  

Investigation of Phase Pattern Modulation for Digital Fringe Projection Profilometry [PDF]

open access: yes, 2020
The fringe projection profilometry with sinusoidal patterns based on phase-shifting algorithms is commonly distorted by the nonlinear intensity response of commercial projector.
Liu Cheng-Yang, Wang Chung-Yi
core   +1 more source

Fringe Order Correction for Fringe Projection Profilometry Based on Robust Principal Component Analysis [PDF]

open access: yes, 2021
Temporal phase unwrapping is among the most robust and efficient phase unwrapping methods in fringe projection profilometry. They can recover the fringe orders even in the presence of surface discontinuities. However, fringe order errors may occur due to
Yiwei Zhang (1448599)   +5 more
core  

Self-supervised phase unwrapping in fringe projection profilometry [PDF]

open access: yes, 2023
Fast-speed and high-accuracy three-dimensional (3D) shape measurement has been the goal all along in fringe projection profilometry (FPP). The dual-frequency phase shifting (DF-PS) is one of the prominent technologies to achieve this goal.
Song, Wanzhong   +7 more
core   +2 more sources

Carrier and aberrations removal in interferometric fringe projection profilometry [PDF]

open access: yes, 2012
A profilometer which takes advantage of polarization states splitting technique and monochromatic light projection method as a way to overcome ambient lighting for in-situ measurement is under development [1, 2].
Y. Renotte   +7 more
core   +1 more source

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