Publications related to Photographic filter

Optimal digital filter selection for remote photoplethysmography (rPPG) signal conditioning

Remote photoplethysmography (rPPG) using camera-based imaging has shown excellent potential recently in vital signs monitoring due to its contactless nature. However, the optimum filter selection for pre-processing rPPG data in signal conditioning is still ...

IOP Publishing Ltd2023

Study of Thin Film LiNbO3 Laterally Excited Bulk Acoustic Resonators

Luis Guillermo Villanueva Torrijo, Soumya Yandrapalli, Hüseyin Baris Atakan, Victor Plessky

This work presents an in-depth study of simulation and measurement results of laterally excited shear bulk acoustic resonators (XBAR) in Lithium Niobate, at 5 GHz with high electromechanical coupling factor (k(t)(2)) as high as 25%, and with impedances at ...

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC2022

Ultraviolet Filtration Passivator for Stable High-Efficiency Perovskite Solar Cells

Mohammad Khaja Nazeeruddin, Yi Zhang, Bing Zhang, Keith Gregory Brooks

Although the published values of power conversion efficiency (PCE) have increased continuously in recent years for perovskite solar cells (PSCs), improvements in the stability and performance of PSCs with conventional TiO2 or SnO2 electron transport layers ...

AMER CHEMICAL SOC2022

Towards a N77 Electroacoustic Filter Using Thin Films of Crystalline Y-cut Lithium Niobate

Luis Guillermo Villanueva Torrijo, Soumya Yandrapalli, Victor Plessky

This paper presents the use of a novel type of resonators made of a thin membrane of Y-cut Lithium Niobate that has an array of interdigitated electrodes on the top, and a floating metal on the bottom. Each electrode gives rise to a quasi-independent reson ...

IEEE2021

Polyamide Nanofiber-Based Air Filters for Transparent Face Masks

Thierry Pelet, René M. Rossi

Transparent face masks are the ultimate solution for improving communication during pandemic times while at the same time slowing the spread of pathogens. Here, we demonstrate an easily scalable process consisting of directly electrospinning polyamide nano ...

AMER CHEMICAL SOC2021

Tomographic reconstruction of the runaway distribution function in TCV using multispectral synchrotron images

Basil Duval, Joan Decker, Umar Sheikh, Artur Perek, Gergely Papp

Synchrotron radiation observed in a quiescent Tokamak a Configuration Variable (TCV) runaway discharge is studied using filtered camera images targeting three distinct wavelength intervals. Through the tomographic simultaneous algebraic reconstruction tech ...

IOP PUBLISHING LTD2021

Ultra-Compact Ka-band Metamaterial Waveguide Filters, Fabricated by Lost-Wax Casting

Romain Christophe Rémy Fleury, Maliheh Khatibi Moghaddam

This paper proposes a novel technique for the design of miniaturized Ka-band filters based on locally resonant metamaterials (LRMs), which are fabricated monolithically using lost wax casting. We implement ultra-small metamaterial filters by exploiting a n ...

IEEE2021

Figlearn: Filter And Graph Learning Using Optimal Transport

Pascal Frossard, Mireille El Gheche, Matthias Minder, Zahra Farsijani

In many applications, a dataset can be considered as a set of observed signals that live on an unknown underlying graph structure. Some of these signals may be seen as white noise that has been filtered on the graph topology by a graph filter. Hence, the k ...

IEEE2021

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Photographic filter

Optimal digital filter selection for remote photoplethysmography (rPPG) signal conditioning

Study of Thin Film LiNbO3 Laterally Excited Bulk Acoustic Resonators

Ultraviolet Filtration Passivator for Stable High-Efficiency Perovskite Solar Cells

Towards a N77 Electroacoustic Filter Using Thin Films of Crystalline Y-cut Lithium Niobate

Polyamide Nanofiber-Based Air Filters for Transparent Face Masks

Tomographic reconstruction of the runaway distribution function in TCV using multispectral synchrotron images

Filter quotients and non-presentable (∞,1)-toposes

Ultra-Compact Ka-band Metamaterial Waveguide Filters, Fabricated by Lost-Wax Casting

Figlearn: Filter And Graph Learning Using Optimal Transport

Quantification of major particulate matter species from a single filter type using infrared spectroscopy – Application to a large-scale monitoring network

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Chat with Graph Search

Polyamide Nanofiber-Based Air Filters for Transparent Face Masks

Filter quotients and non-presentable (∞,1)-toposes

Quantification of major particulate matter species from a single filter type using infrared spectroscopy – Application to a large-scale monitoring network

Optimal digital filter selection for remote photoplethysmography (rPPG) signal conditioning

Tomographic reconstruction of the runaway distribution function in TCV using multispectral synchrotron images

Ultra-Compact Ka-band Metamaterial Waveguide Filters, Fabricated by Lost-Wax Casting

Study of Thin Film LiNbO3 Laterally Excited Bulk Acoustic Resonators

Ultraviolet Filtration Passivator for Stable High-Efficiency Perovskite Solar Cells

Towards a N77 Electroacoustic Filter Using Thin Films of Crystalline Y-cut Lithium Niobate

Figlearn: Filter And Graph Learning Using Optimal Transport