Results 81 to 90 of about 1,741,443 (291)

Interactive global illumination based on coherent surface shadow maps. [PDF]

, 2008
Interactive rendering of global illumination effects is a challenging problem. While precomputed radiance transfer (PRT) is able to render such effects in real time the geometry is generally assumed static.
Seidel, H-P, Seidel, Hans-Peter, Thorsten Grosch, Grosch, Thorsten, Ritschel, T., Grosch, T., Kautz, J, Kautz, Jan, Kautz, J., Ritschel, Tobias, Tobias Ritschel, Jan Kautz, Hans-peter Seidel, Ritschel, T, Seidel, H. ; https://orcid.org/, Grosch, T   +15 more
core  

Optoelectronic Synaptic Devices Using Molecular Telluride Phase‐Change Inks for Three‐Factor Learning

Advanced Functional Materials, EarlyView.
Optoelectronic synaptic devices based on solution‐processed molecular telluride GST‐225 phase‐change inks are demonstrated for three‐factor learning. A global optical signal broadcast through a silicon waveguide induces non‐volatile conductance updates exclusively in locally electrically flagged memristors.
Kevin Portner, Dhananjeya Kumaar, Giacomo Torti, Killian Keller, Till Zellweger, Florian M. Schenk, Christoph Weilenmann, Daniel Chelladurai, Vara Prasad Jonnalagadda, Ghazi Sarwat Syed, Vanessa Wood, Jürg Leuthold, Alexandros Emboras, Maksym Yarema, Mathieu Luisier   +14 more
wiley   +1 more source

X‐Functionality–Driven Photocatalytic Hydrogen Evolution in 2D 4‐X‐PEA2SnI4 Perovskites

Advanced Functional Materials, EarlyView.
We report a water‐based synthesis of 2D 4‐X‐PEA2SnI4 perovskite microcrystals with prominent photocatalytic (PC) activity for H2 production. The synergy between organic functionalization and HI‐derived iodide scavenges holes suppress octahedral distortion, and favor electron accumulation, enabling a PC H2 evolution ∼20 µmol·g−1 and long‐term stability ...
Taeyeon Kim, Gayoung Seo, Seong Yeon Park, Juwon Jang, Yunho Ahn, Samiksha Mukesh Jain, Samrat Das Adhikari, Harumi Correa‐Leiva, Ignacio Utreras‐Asenjo, Oscar A. Douglas‐Gallardo, Carina Pareja‐Rivera, Kayoung Cho, Byeongsung Kim, Jhonatan Rodriguez‐Pereira, Eunseo Choi, JaeHong Park, Jin Ho Bang, Danilo H. Jara‐Quinteros, Sixto Giménez, Seog Joon Yoon, Andrés F. Gualdrón‐Reyes, Iván Mora‐Seró   +21 more
wiley   +1 more source

Illumination Estimation and Segmentation in Multi Illuminant Scenes

, 2023
Računalna konstantnost boje provodi se u dva koraka: procjena osvjetljenja i korekcija boje (također zvano balansiranje bijele boje). Problem procjene osvjetljenja je poddefiniran, jer je nemoguće odrediti kombinaciju osvjetljenja i refleksije koja je stvorila boju koju senzor kamere vidi.
openaire   +2 more sources

Estimation of illumination spectrum from a hyperspectral image

, 2020
Illumination separation in the red, green, blue (RGB) color space has been an essential topic for color constancy. A simple and non-iterative solution for hyperspectral illumination estimation is proposed in this study, which is based on the assumption ...
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core   +1 more source

Quantifying Subsurface Weak in‐Plane Magnetization of Mixed Phase BiFeO3 by Scanning Nitrogen Vacancy Magnetometry

Advanced Functional Materials, EarlyView.
We use scanning nitrogen vacancy magnetometry to directly image the weak in‐plane magnetic moments in mixed phase BiFeO3 at the nanoscale and quantify the local magnetic moments to be 18.8±2.0 μB/nm2 in the rhombohedral‐like phase and 1.5±0.6 μB/nm2 in the well‐known non‐magnetic tetragonal‐like phase.
Lei Wang, Zhewen Xu, Yuwen Xu, Björn Josteinsson, Simon Josephy, Dawei Zhang, Yunlong Sun, Heung‐Sik Park, Jihun Kim, Kanghyun Chu, Kyung Song, Danyang Wang, Chan‐Ho Yang, Andrea Morales, Jan Seidel   +14 more
wiley   +1 more source

Dynamic Diffuse Global Illumination Resampling

, 2022
Interactive global illumination remains a challenge in radiometrically and geometrically complex scenes. Specialized sampling strategies are effective for specular and near‐specular transport because the scattering has relatively low directional variance
Müller, Thomas, Majercik, Zander, Keller, Alexander, Nowrouzezahrai, Derek, McGuire, Morgan   +4 more
core   +1 more source

Multimode Oxide‐Based Optoelectronic Memtransistor for In‐Sensor Vision Processing

Advanced Functional Materials, EarlyView.
A multimode optoelectronic memtransistor (OEMT) is demonstrated for vision explainable artificial intelligence (VXAI) hardware. By integrating optical sensing, electrical masking, and non‐volatile memory, the device enables key operations required for generating saliency information.
Min Gu Lee, Geunyoung Kim, Hwa Young Kim, Do Hoon Kim, Hanchan Song, Huisu Noh, Jungwan Noh, Seungwoo Lee, Sang‐Hee Ko Park, Himchan Cho, Kyung Min Kim   +10 more
wiley   +1 more source

Underground low-light self-supervised image enhancement method based on structure and texture perception

Meitan xuebao
Due to the complex spatial environment and uneven artificial lighting underground, images captured by underground visual equipment often suffer from insufficient overall or partial lighting and poor visibility of image content. Existing image enhancement
Shan PAN, Ting YU, Wei CHEN, Zijian TIAN, Zhongwen YUE   +4 more
doaj   +1 more source

Ultra-wide angle lens design with relative illumination analysis [PDF]

, 2016
An ultra-wide angle lens design with relative illumination analysis is presented. The half field angle of 80°, the relative illumination of the image plane will be reduced.
Chu, P.-Y.; Department of Optics and Photonics, National Central University, Chung-Li 32001, Taiwan, Tien, C.-L.; Department of Electrical Engineering, Feng Chia University, Taichung 40724, Taiwan, Sun, W.-S.; Department of Optics and Photonics, National Central University, Chung-Li 32001, Taiwan, Chen, Y.-H.; Department of Optics and Photonics, National Central University, Chung-Li 32001, Taiwan   +3 more
core   +3 more sources