Results 91 to 100 of about 6,266 (254)

Retinal adaptive optics imaging with a pyramid wavefront sensor. [PDF]

Biomed Opt Express, 2021
Brunner E, Shatokhina J, Shirazi MF, Drexler W, Leitgeb R, Pollreisz A, Hitzenberger CK, Ramlau R, Pircher M.   +8 more
europepmc   +1 more source

Assessing and mitigating alignment defects of the pyramid wavefront sensor: a translation insensitive control method [PDF]

, 2018
Vincent Déo, É. Gendron, G. Rousset, Fabrice Vidal, Tristan Buey, M. Cohen   +5 more
openalex   +1 more source

Design of Compact Liquid Crystal on Silicon Projection Optics Utilizing a Common Freeform Optical Path for Augmented Reality Displays

Advanced Intelligent Systems, EarlyView.
This study presents a compact freeform projection optics using dual wedge prisms for waveguide displays. Unlike previous designs that separate illumination and imaging paths, a freeform optical path integrates both. The system achieves a 32º field of view, 37.5 pixels per degree, and a total volume of less than 2 cm3.
Ximeng Wang, Dewen Cheng, Yuefan Shan, Da Wang, Tong Yang, Yongtian Wang   +5 more
wiley   +1 more source

Shack-Hartmann wavefront sensor optical dynamic range. [PDF]

Opt Express, 2021
Akondi V, Dubra A.
europepmc   +1 more source

Gaze‐Engineered 3D Augmented Reality

Advanced Intelligent Systems, EarlyView.
Augmented Reality (AR) systems serve as a critical interface bridging users with the metaverse. This study explores the application of human factors engineering in metaverse development, specifically investigating the integration of eye‐tracking technology to enhance AR display performance.
Naiqin Zhao, Jiasheng Xiao, Runze Zhu, Hao Zhang   +3 more
wiley   +1 more source

Multi-Spectral and Single-Shot Wavefront Detection Technique Based on Neural Networks

Photonics
Conventional wavefront sensors face challenges when detecting frequency-domain information. In this study, we developed a high-precision, and fast multi-spectral wavefront detection technique based on neural networks.
Xunzheng Li, Aoyang Wang, Mao Fan, Lianghong Yu, Xiaoyan Liang   +4 more
doaj   +1 more source

Study of the LIFT focal-plane wavefront sensor for GALACSI NFM [PDF]

, 2022
Arseniy Kuznetsov, Sylvain Oberti, Cédric Taïssir Héritier, Cédric Plantet, Benoît Neichel, Thierry Fusco, Stefan Ströbele, Carlos M. Correia   +7 more
openalex   +1 more source

Precise Real‐Time Measurement of Liquid Viscosity Using Digital Video Data

Advanced Intelligent Systems, EarlyView.
Frame‐by‐frame image similarity analysis is employed to obtain the viscosity of moving liquids in real time. The method allows for online implementation even in harsh environments, replacing complex and invasive experiments. Quantitative knowledge of liquid viscosity is of fundamental importance in many areas of materials synthesis and processing ...
Zhiwen Pan, Tina Waurischk, Alexis Duval, Ralf Müller, Joachim Deubener, N. M. Anoop Krishnan, Katrin Wondraczek, Lothar Wondraczek   +7 more
wiley   +1 more source

Optimization of Iterative Control Algorithms for High-Resolution Adaptive Optics Systems

IEEE Photonics Journal
As the number of wavefront sensor subapertures and deformable mirror actuators in adaptive optics systems increases, the computational time of the direct gradient wavefront control algorithm is excessively long, which is a major factor affecting the ...
Shenghu Liu, Wang Zhao, Shuai Wang, Kangjian Yang, Ping Yang, Hongli Guan, Han Guo, Ruifeng He   +7 more
doaj   +1 more source

Memory‐Reduced Convolutional Neural Network for Fast Phase Hologram Generation

Advanced Intelligent Systems, EarlyView.
This article reports a lightweight convolutional neural network framework using INT8 quantization to efficiently generate 3D computer‐generated holograms from a single 2D image. The quantized model reduces memory usage and computational cost, accelerates inference speed, and maintains high output quality, enabling real‐time holographic display on low ...
Chenliang Chang, Chenzhou Zhao, Bo Dai, Qi Wang, Dawei Zhang, Songlin Zhuang, Chao Ping Chen   +6 more
wiley   +1 more source