Results 71 to 80 of about 92,260,850 (247)

Unlocking Terahertz Steganography: Authentication of Hidden Images in Flexible Media

Advanced Materials Technologies, EarlyView.
Hidden information in multilayered devices, such as steganographic portraits, is detected and authenticated using reflection‐mode terahertz time‐domain imaging. Image reconstruction relies on a dedicated figure‐of‐merit obtained by integrating the signal intensity over the time‐window associated with the reflection from the metallic mirror backing the ...
Tiziana Ritacco, Francesca Vittorioso, Dimitrios C. Zografopoulos, Romeo Beccherelli, Walter Fuscaldo   +4 more
wiley   +1 more source

Spectral Reconstruction Using Broadband Inkjet‐Printed Optical Filters

Advanced Optical Materials, EarlyView.
A proof‐of‐concept for a reconstructive spectrometer based on inkjet‐printed interferometric optical filters is demonstrated. Through adaptive encoding and robust post‐processing algorithms, spectral reconstruction is achieved over a 400 nm visible bandwidth at a fraction of the cost and complexity of typical encoders while maintaining high optical ...
Leonardo Baini, Qihao Jin, Qiaoshuang Zhang, Guillaume Gomard, Uli Lemmer, Paolo Bartolini, Andrea Taschin, Diederik S. Wiersma, Renato Torre, Alice Boschetti   +9 more
wiley   +1 more source

Automated volumetric evaluation of stereoscopic disc photography

, 2010
PURPOSE: To develop a fully automated algorithm (AP) to perform a volumetric measure of the optic disc using conventional stereoscopic optic nerve head (ONH) photographs, and to compare algorithm-produced parameters with manual photogrammetry (MP ...
David Mackey (14743045), Wollstein, G (15537572), Craig, JE (15485495), Ishikawa, H (15537569), Bilonick, RA (15537575), Alexander Hewitt (14739028), Schuman, JS (15537581), Kagemann, L (15537578), Xu, J (15514127)   +8 more
core   +2 more sources

Fig 1 -

, 2022
Disc photographs from two WHISE participants, outlining vertical disc and cup diameters with cup-to-disc ratio ≥ 0.6 (B).
Joelle A. Hallak (7927457), Pauline M. Maki (7246670), Mary N. Haan (9532826), Stacy M. Meuer (2630104), Rawan Allozi Rupnow (9908007), Mark A. Espeland (9514396), Barbara E. Klein (6881468), Abhishek Sethi (9580157), Sasha Kravets (5545475), Stephen R. Rapp (481871), Thasarat Sutabutr Vajaranant (14034873), Louis R. Pasquale (7168736)   +11 more
core   +1 more source

Continuum Mechanics Modeling of Flexible Spring Joints in Surgical Robots

Advanced Robotics Research, EarlyView.
A new mechanical model of a tendon‐actuated helical extension spring joint in surgical robots is built using Cosserat rod theory. The model can implicitly handle the unknown contacts between adjacent coils and numerically predict spring shapes from straight to significantly bent under actuation forces.
Botian Sun, Liang Zhang, Jianwen Zeng, Xuefeng Wang   +3 more
wiley   +1 more source

Universal Gripper for Industrial Manipulation With Enhanced Rigid Mechanics and Self‐Adaptable Fingers

Advanced Robotics Research, EarlyView.
An enhanced universal gripper combining rigid mechanics with self‐adaptable fingers is presented for industrial automation. The novel six‐bar linkage with integrated compliant pad eliminates mechanical interference while enabling passive shape adaptation.
Muhammad Usman Khalid, Nirmal Kumar Ravikumar, Mattia Frascio, Sumanth Nagalakunta, Alessandro Seitone, Benoît Lévesque, Alessandro Zanella, Matteo Zoppi   +7 more
wiley   +1 more source

Classification of eye diseases using optic cup segmentation and optic disc ratio and its implementation using VHDL [PDF]

, 2018
The proposed work consists reprocessing using morphological operations and then segmentation of optic disc and optic cup by using the morphological operations.
Mariappan, R., Naik, B. Balaji
core   +1 more source

Push the Limits: Human‐Like Multimodal Extreme Embodied Intelligence for Autonomous Racing

Advanced Robotics Research, EarlyView.
Autonomous racing tests embodied intelligence under extreme control limits of speed, actuation, and decision‐making. Inspired by human multimodality, we present Apex, an embodied agent deployed on a super‐formula racing car at Yas Marina. Integrating physics‐informed perception, multimodal learning, and tasking, Apex cuts lap times by 15% and achieves ...
Yanxin Zhou, Baichuan Lou, Wenhui Huang, Binbin Hu, Haohan Yang, Haochen Liu, Xiangkun He, Chee Kiong Ong, Yiran Zhang, Tianchu Su, Bolin Zhao, Xiaoyu Mo, Holden King Ho Li, Chen Lv   +13 more
wiley   +1 more source

Example of vertical cup/disc ratio.

, 2019
Here, the boundaries of the cup and disc were determined using the ORIGA-GT software (modified from [16]). This software generates boundaries by fitting two ellipses using human expert landmark identification and least squares fitting.
Gabriela Czanner (3233217), Silvester Czanner (6195158), George L. Spaeth (6195164), Emery N. Brown (153928), Yalin Zheng (587113), Colin E. Willoughby (2636707), Ian J. C. MacCormick (512819), Baidaa Al-Bander (6195155), Rob Cheeseman (6195161), Bryan M. Williams (6195152), Kun Li (277035)   +10 more
core   +1 more source

Flexible Sensors for Robotics Tactile Perception: A Review

Advanced Robotics Research, EarlyView.
Flexible tactile sensing for robotics is reviewed through four interconnected dimensions. Physical mechanisms include piezoresistive, capacitive, piezoelectric, triboelectric, iontronic, and optical sensing. Structural design includes bioinspired, defect‐based, and MEMS‐based tactile systems.
Yu Song, Ying Chen, Yihao Chen, Xue Feng
wiley   +1 more source