Articles with "projector" as a keyword



Dynamic Ultrasound Projector Controlled by Light

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Published in 2022 at "Advanced Science"

DOI: 10.1002/advs.202104401

Abstract: Abstract Dynamic acoustic wavefront control is essential for many acoustic applications, including biomedical imaging and particle manipulation. Conventional methods are either static or in the case of phased transducer arrays are limited to a few… read more here.

Keywords: ultrasound projector; controlled light; dynamic ultrasound; dynamic acoustic ... See more keywords
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Patterned Optogenetic Stimulation Using a DMD Projector.

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Published in 2021 at "Methods in molecular biology"

DOI: 10.1007/978-1-0716-0830-2_11

Abstract: Optical manipulation is a powerful way to control neural activity in vitro and in vivo with millisecond precision. Patterning of light provides the remarkable ability to simultaneously target spatially segregated neurons from a population. Commercially… read more here.

Keywords: projector; using dmd; stimulation using; patterned optogenetic ... See more keywords

Shape Holomorphy of the Calderón Projector for the Laplacian in $${\mathbb {R}}^2$$

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Published in 2021 at "Integral Equations and Operator Theory"

DOI: 10.1007/s00020-021-02653-5

Abstract: We establish the holomorphic dependence of the boundary integral operators (BIOs) comprising the Calderon projector for the Laplacian in two dimensions on the boundary shape. More precisely, we show that the Calderon projector, as an… read more here.

Keywords: shape; holomorphy calder; projector; shape holomorphy ... See more keywords

Rapid tracking of extrinsic projector parameters in fringe projection using machine learning

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Published in 2019 at "Optics and Lasers in Engineering"

DOI: 10.1016/j.optlaseng.2018.08.018

Abstract: Abstract In this work, we propose to enable the angular re-orientation of a projector within a fringe projection system in real-time without the need for re-calibrating the system. The estimation of the extrinsic orientation parameters… read more here.

Keywords: neural network; fringe projection; projector; rapid tracking ... See more keywords

Projector distortion residual compensation in fringe projection system

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Published in 2019 at "Optics and Lasers in Engineering"

DOI: 10.1016/j.optlaseng.2018.10.015

Abstract: Abstract In fringe projection profilometry system, the lens distortion of the projector is usually represented with the distortion coefficients, but it will result in large residual. To compensate this residual, a projector distortion residual compensation… read more here.

Keywords: system; distortion; fringe projection; projector ... See more keywords

A 0.18 cubic centimeter 3D meta-holographic zoom micro-projector

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Published in 2025 at "Nature Communications"

DOI: 10.1038/s41467-025-65764-2

Abstract: Meta-holography has become a frontier hot spot of photonics, thanks to the rapid advancement of nanofabrication. Tunable meta-holography significantly enhances information capacity and meets the growing demands of adaptive imaging, offering tremendous application prospects in… read more here.

Keywords: micro projector; meta; meta holographic; zoom micro ... See more keywords

Automatic projector defocus measurement method with large depth of field for fringe projection system

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Published in 2025 at "Measurement Science and Technology"

DOI: 10.1088/1361-6501/addff4

Abstract: The optimal defocus method is proved to be helpful to improve the accuracy of fringe projection measurement system. Using this characteristic, this paper proposes an automatic projector defocus method by using a self-designed control module… read more here.

Keywords: method; defocus; point; fringe projection ... See more keywords
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Projector and Camera Shade Detection Based on Stripe Pattern Sequence for High Quality Structured Light Depth Imaging

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Published in 2021 at "IEEE Access"

DOI: 10.1109/access.2021.3070655

Abstract: Structured light depth imaging offers a high precision of 3D measurement for applications to industrial modeling, inspection, reproduction and archiving. Despite recent progress, however, structured light depth imaging has yet to settle the trade-off between… read more here.

Keywords: light depth; projector camera; projector; depth imaging ... See more keywords

Multiprojector Multicamera Structured Light Surface Scanner

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Published in 2022 at "IEEE Access"

DOI: 10.1109/access.2022.3200388

Abstract: Structured light surface scanners are usually limited to a single projector and cannot provide a full surface profile in a single scan. Multiple projectors must be employed to extend the imaging area over the whole… read more here.

Keywords: surface scanner; light surface; surface; approach ... See more keywords

The Effects of Manufacturing Inaccuracies in an Underwater Acoustic Projector Array on the Acoustic Interactions

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Published in 2021 at "IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control"

DOI: 10.1109/tuffc.2020.3032762

Abstract: We report on the importance of considering manufacturing inaccuracies in underwater acoustic projectors by elucidating how small variations affect the response characteristics of a projector array in the presence of mutual-loading effects. A wave-based distributed… read more here.

Keywords: effects manufacturing; underwater acoustic; projector; projector array ... See more keywords
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Adjustable Acoustic Field Controlled by “Ultrasonic Projector” on Ultrasound Application

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Published in 2022 at "IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control"

DOI: 10.1109/tuffc.2021.3106712

Abstract: The control of acoustic field has great potential in many applications such as medical treatment, neuro-modulation, and bio-imaging. Recently, acoustic lenses and phased arrays have become common ways of controlling acoustic fields. However, the shortcomings… read more here.

Keywords: field; acoustic field; adjustable acoustic; control ... See more keywords