Performance analysis and evaluation of direct phase measuring deflectometry
Abstract Three-dimensional (3D) shape measurement of specular objects plays an important
role in intelligent manufacturing applications. Phase measuring deflectometry (PMD)-based …
role in intelligent manufacturing applications. Phase measuring deflectometry (PMD)-based …
Adaptive pixel-to-pixel projection intensity adjustment for measuring a shiny surface using orthogonal color fringe pattern projection
C Chen, N Gao, X Wang, Z Zhang - Measurement Science and …, 2018 - iopscience.iop.org
Abstract Three-dimensional (3D) shape measurement based on fringe pattern projection
techniques has been commonly used in various fields. One of the remaining challenges in …
techniques has been commonly used in various fields. One of the remaining challenges in …
An improved stair phase encoding method for absolute phase retrieval
C Zhou, T Liu, S Si, J Xu, Y Liu, Z Lei - Optics and Lasers in Engineering, 2015 - Elsevier
An improved phase unwrapping method is proposed to reduce the projection fringes in three-
dimensional (3D) surface measurement. Color fringe patterns are generated by encoding …
dimensional (3D) surface measurement. Color fringe patterns are generated by encoding …
Activity recognition in residential spaces with internet of things devices and thermal imaging
In this paper, we design algorithms for indoor activity recognition and 3D thermal model
generation using thermal images, RGB images, captured from external sensors, and the …
generation using thermal images, RGB images, captured from external sensors, and the …
3D shape measurement of discontinuous specular objects based on advanced PMD with bi-telecentric lens
This paper presents an advanced phase measuring deflectometry (PMD) method based on
a novel mathematical model to obtain three dimensional (3D) shape of discontinuous …
a novel mathematical model to obtain three dimensional (3D) shape of discontinuous …
High-accuracy projector calibration method for fringe projection profilometry considering perspective transformation
Camera and projector are the key components of structured light three-dimensional (3-D)
measurements, and Digital Light Processing (DLP) projector has been widely used for …
measurements, and Digital Light Processing (DLP) projector has been widely used for …
Generic exponential fringe model for alleviating phase error in phase measuring profilometry
Phase measuring profilometry (PMP) is susceptible to phase error caused by gamma
distortion that leads to the captured fringe patterns deviating from ideal sinusoidal …
distortion that leads to the captured fringe patterns deviating from ideal sinusoidal …
3D reconstruction method based on N-step phase unwrapping
L Wang, L Yi, Y Zhang, X Wang, W Wang, X Wang… - The Visual …, 2024 - Springer
Reducing the number of images in fringe projection profilometry has emerged as a
significant research focus. Traditional temporal phase unwrapping algorithms typically …
significant research focus. Traditional temporal phase unwrapping algorithms typically …
High sensitivity fringe projection profilometry combining optimal fringe frequency and optimal fringe direction
Phase sensitivity plays a vital role in accurately retrieving three-dimensional (3D) shape of
diffused objects in fringe projection profilometry (FPP). With regard to traditional means that …
diffused objects in fringe projection profilometry (FPP). With regard to traditional means that …
An iterative distortion compensation algorithm for camera calibration based on phase target
Camera distortion is a critical factor affecting the accuracy of camera calibration. A
conventional calibration approach cannot satisfy the requirement of a measurement system …
conventional calibration approach cannot satisfy the requirement of a measurement system …