Background and amplitude encoded fringe patterns for 3D surface-shape measurement
Sign Up to like & getrecommendations! Published in 2017 at "Optics and Lasers in Engineering"
DOI: 10.1016/j.optlaseng.2017.02.014
Abstract: Abstract This paper presents a new fringe projection method for surface-shape measurement that uses background and amplitude encoded high-frequency fringe patterns. The background and amplitude, combined as a codeword, identify the wrapped phase fringe order… read more here.
Keywords: fringe patterns; shape measurement; fringe; background amplitude ... See more keywords
High-speed 3D shape measurement with structured light methods: A review
Sign Up to like & getrecommendations! Published in 2018 at "Optics and Lasers in Engineering"
DOI: 10.1016/j.optlaseng.2018.02.017
Abstract: Abstract High-speed 3D shape measurement (or imaging) has seen tremendous growths over the past decades, especially the past few years due to the improved speed of computing devices and reduced costs of hardware components. 3D… read more here.
Keywords: measurement; speed shape; shape measurement; high speed ... See more keywords
High-Dynamic-Range 3-D Shape Measurement With Adaptive Speckle Projection Through Segmentation-Based Mapping
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Transactions on Instrumentation and Measurement"
DOI: 10.1109/tim.2022.3218110
Abstract: The 3-D shape measurement of high-dynamic-range (HDR) scenes based on structured light projection is challenging because the conventional projection without considering the reflection distribution of the tested surface usually causes over-exposure and over-dark areas simultaneously… read more here.
Keywords: projection; shape measurement; adaptive speckle; speckle ... See more keywords
High-speed three-dimensional absolute shape measurement with three projected binary patterns
Sign Up to like & getrecommendations! Published in 2020 at "Optical Engineering"
DOI: 10.1117/1.oe.59.2.024104
Abstract: Abstract. Reducing the number of structured patterns for three-dimensional (3-D) reconstruction is of great importance for high-speed 3-D shape measurement. We present a method that reconstructs absolute 3-D shape using three projected binary patterns: one… read more here.
Keywords: speed; shape; shape measurement; frequency ... See more keywords
Three-dimensional shape measurement based on binary fringe conventional projection
Sign Up to like & getrecommendations! Published in 2019 at "Transactions of the Institute of Measurement and Control"
DOI: 10.1177/0142331219848029
Abstract: A three-dimensional (3D) shape measurement method based on binary fringe conventional projection is proposed. In traditional 3D shape measurement methods based on binary fringe projection, the binary fringe is used as an approximate sinusoidal fringe… read more here.
Keywords: binary fringe; projection; shape measurement; fringe ... See more keywords
Soft joint shape measurement device based on FBG with a simple demodulating system.
Sign Up to like & getrecommendations! Published in 2022 at "Applied optics"
DOI: 10.1364/ao.470013
Abstract: Soft joint shape measurement is challenging because, in most cases, it relies solely on internal sensors. Existing shape estimation methods commonly take measurements at discrete points and utilize curve-fitting schemes, which are inefficient for complex… read more here.
Keywords: system; soft joint; shape measurement; measurement ... See more keywords
High-accuracy 3D shape measurement of translucent objects by fringe projection profilometry.
Sign Up to like & getrecommendations! Published in 2019 at "Optics express"
DOI: 10.1364/oe.27.018421
Abstract: Acquiring complete and accurate 3D shape measurement results of translucent objects by fringe projection profilometry (FPP) is difficult because of the subsurface scattering effect. The phase offset introduces geometric errors, and the degraded image contrast… read more here.
Keywords: translucent objects; shape measurement; fringe projection; measurement ... See more keywords
3D shape measurement of translucent objects based on Fourier single-pixel imaging in projector-camera system.
Sign Up to like & getrecommendations! Published in 2019 at "Optics express"
DOI: 10.1364/oe.27.033564
Abstract: 3D shape measurement by structured light is a popular technique for recovering object surfaces. However, structured light technique assumes that scene points are directly illuminated by the light source(s). Consequently, global illumination effects, such as… read more here.
Keywords: translucent objects; objects based; shape measurement; based fourier ... See more keywords
High-speed 3D shape measurement using a rotary mechanical projector.
Sign Up to like & getrecommendations! Published in 2021 at "Optics express"
DOI: 10.1364/oe.419206
Abstract: In this paper, a fast rotary mechanical projector (RMP) is designed and manufactured for high-speed 3D shape measurement. Compared with the common high-speed projectors, RMP has a good performance in high-speed projection, which can obtain… read more here.
Keywords: speed; error; high speed; shape measurement ... See more keywords
High-efficiency and robust binary fringe optimization for superfast 3D shape measurement.
Sign Up to like & getrecommendations! Published in 2022 at "Optics express"
DOI: 10.1364/oe.472642
Abstract: By utilizing 1-bit binary fringe patterns instead of conventional 8-bit sinusoidal patterns, binary defocusing techniques have been successfully applied for high-speed 3D shape measurement. However, simultaneously achieving high accuracy and high speed remains challenging. To… read more here.
Keywords: shape measurement; binary fringe; fringe; optimization ... See more keywords
Optimized dithering approach for 3D shape measurement using a phase-based chaos genetic algorithm.
Sign Up to like & getrecommendations! Published in 2022 at "Applied optics"
DOI: 10.2139/ssrn.4103703
Abstract: A binary defocusing method has a significant impact on improving 3D shape measurement quality for digital fringe projector (DFP) techniques. In this paper, an optimization framework using the dithering method is presented. This framework utilizes… read more here.
Keywords: shape measurement; genetic algorithm; algorithm; phase ... See more keywords