Results 11 to 20 of about 68,003 (260)

A personalized approach to non-invasive ventilation masks in amyotrophic lateral sclerosis using facial scanning and 3D-printing

open access: yesAnnals of 3D Printed Medicine, 2021
We fabricated personalized non-invasive ventilation (NIV) mask interfaces for amyotrophic lateral sclerosis (ALS) participants. A NIV cushion design was fit to a contact profile from the participant's topographic facial model obtained from a 3D scanner ...
Stephen A. Goutman   +6 more
doaj   +1 more source

WAVELET FRAMES WITH MATCHED MASKS

open access: yesJournal of Mathematical Sciences, 2022
In the paper we design a Parseval wavelet frame with a compact support and many vanishing moments. The corresponding refinement mask approximates an arbitrary continuous periodic function $f$, $f(0)=1$. The refinable function has stable integer shifts.
openaire   +3 more sources

Mask Wearing Detection Algorithm Based on Improved YOLOv3 in Complex Scenes [PDF]

open access: yesJisuanji gongcheng, 2020
The transmission of COVID-19 virus through respiratory droplets can be effectively prevented by correct mask wearing.However,complex factors in natural scenes including occlusion,crowds,and small-scale targets frequently affect the detection of mask ...
WANG Yihao, DING Hongwei, LI Bo, YANG Zhijun, YANG Jundong
doaj   +1 more source

“The mask is not for you” : A framing analysis of pro- and anti-mask sentiment on Twitter

open access: yesHealth & New Media Research, 2022
In the midst of the COVID-19 pandemic, widespread adoption of facemasks has been recognized as a low-cost, simple public health intervention that can reduce the transmission of the virus. However, early in the pandemic significant public opposition emerged in the U.S. and other parts of the world.
Scott S.D. Mitchell, Josh Beanlands
openaire   +1 more source

A Modified Surgical Face Mask to Improve Protection and Wearing Comfort

open access: yesBuildings, 2022
Wearing face masks is essential for reducing infection during the COVID-19 pandemic. However, ordinary surgical face masks can provide only moderate protection.
Tengfei (Tim) Zhang   +2 more
doaj   +1 more source

Capturing Topic Framing via Masked Language Modeling

open access: yesFindings of the Association for Computational Linguistics: EMNLP 2022, 2022
In Findings of EMNLP ...
Xiaobo Guo   +2 more
openaire   +3 more sources

Contrastive Learning with Positive-Negative Frame Mask\\ for Music Representation

open access: yesProceedings of the ACM Web Conference 2022, 2022
Self-supervised learning, especially contrastive learning, has made an outstanding contribution to the development of many deep learning research fields. Recently, researchers in the acoustic signal processing field noticed its success and leveraged contrastive learning for better music representation.
Joshua Romphf   +7 more
openaire   +2 more sources

Loop Closure Detection for Mobile Robot based on Multidimensional Image Feature Fusion

open access: yesMachines, 2022
Loop closure detection is a crucial part of VSLAM. However, the traditional loop closure detection algorithms are difficult to adapt to complex and changeable scenes.
Jinming Li   +4 more
doaj   +1 more source

3D Printed Mask Frames Improve the Inward Protection Efficiency of a Cloth Mask

open access: yesACS ES&T Engineering, 2021
Here, we show that improving the fit of a cloth mask using a low-cost 3D-printed frame significantly improves its inward protection efficiency for airborne particles known to transmit SARS-CoV-2. We found that a 3D-printed flexible frame (i.e., brace) increased the inward protection efficiency of a cotton-based cloth mask by 13-43% for particles ...
Yuxin Tong   +5 more
openaire   +1 more source

SMART GESTURE USING REAL TIME OBJECT TRACKING [PDF]

open access: yesICTACT Journal on Image and Video Processing, 2019
Gesture can be used to interact with the computer without any physical contact. The use of keyboard and mouse can be minimized. Gesture can be of various types. One such type is movement of hand in a particular posture.
Sumanth Bhat, N Lavanya, M A Anusuya
doaj   +1 more source

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