Results 31 to 40 of about 113,063 (166)

A Parallel Multimodal Integration Framework and Application for Cake Shopping

open access: yesApplied Sciences, 2023
Multimodal interaction systems can provide users with natural and compelling interactive experiences. Despite the availability of various sensing devices, only some commercial multimodal applications are available.
Hui Fang, Dongdong Weng, Zeyu Tian
doaj   +1 more source

Dual-View and Multi-Content Head-Up Display Using a Single Picture Generation Unit and Two-Layer Volume Holographic Grating

open access: yesIEEE Photonics Journal, 2022
Considering that the driver and passengers need different display content in the vehicle display, we propose a dual-view and multi-content head-up display (HUD).
Zhenlv Lv, Juan Liu, Yan Yang
doaj   +1 more source

HiFinger: One-Handed Text Entry Technique for Virtual Environments Based on Touches between Fingers

open access: yesSensors, 2019
We present a text entry technique called HiFinger, which is an eyes-free, one-handed wearable text entry technique for immersive virtual environments by thumb-to-fingers touch.
Haiyan Jiang   +3 more
doaj   +1 more source

Recent Advancement in Optical Metasurface: Fundament to Application

open access: yesMicromachines, 2022
Metasurfaces have gained growing interest in recent years due to their simplicity in manufacturing and lower insertion losses. Meanwhile, they can provide unprecedented control over the spatial distribution of transmitted and reflected optical fields in ...
Naqeeb Ullah   +2 more
doaj   +1 more source

Nonmechanical varifocal metalens using nematic liquid crystal

open access: yesNanophotonics, 2023
Metalenses exhibit a substantial potential in replacing traditional optical component as they present a methodology for miniaturization. Lenses with tunable focal lengths can play a key role in various fields with applications in imaging, displays, and ...
Zhu Shuangqi   +3 more
doaj   +1 more source

Solution Processed Trilayer Structure for High-Performance Perovskite Photodetector

open access: yesNanoscale Research Letters, 2018
Due to their outstanding performance, low cost, ease of fabrication, diverse photonic, and optoelectronic applications, metal halides perovskite have attracted extensive interest in photodetector applications.
Abbas Ahmad Khan   +3 more
doaj   +1 more source

Ultrasensitive metasurface sensor based on quasi-bound states in the continuum

open access: yesNanophotonics
The quasi-bound state in the continuum (quasi-BIC) of dielectric metasurface provides a crucial platform for sensing, because its almost infinite Q-factor can greatly enhance the interactions between light waves and the analytes.
Li Ning   +6 more
doaj   +1 more source

Multichannel Fully Convolutional Network for Coronary Artery Segmentation in X-Ray Angiograms

open access: yesIEEE Access, 2018
Accurate segmentation of coronary arteries in X-ray angiograms is an important step for the quantitative study of coronary artery disease. However, accurate segmentation is a challenging task because coronary arteries are thin tubular structures with ...
Jingfan Fan   +8 more
doaj   +1 more source

Iterative freeform lens design for prescribed irradiance on curved target

open access: yesOpto-Electronic Advances, 2020
Current freeform illumination optical designs are mostly focused on producing prescribed irradiance distributions on planar targets. Here, we aim to design freeform optics that could generate a desired illumination on a curved target from a point source,
Feng Zexin, Cheng Dewen, Wang Yongtian
doaj   +1 more source

PAR-Net: An Enhanced Dual-Stream CNN–ESN Architecture for Human Physical Activity Recognition

open access: yesSensors
Physical exercise affects many facets of life, including mental health, social interaction, physical fitness, and illness prevention, among many others.
Imran Ullah Khan, Jong Weon Lee
doaj   +1 more source

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