Results 91 to 100 of about 573,636 (291)

Bio‐Orthogonally Crosslinked Supramolecular Polymer Bottlebrush Hydrogels for Long‐Term 3D Cell Culture

Advanced Functional Materials, EarlyView.
Fibrous benzenetrispeptide (BTP) hydrogels, fabricated via strain‐promoted azide‐alkyne cycloaddition (SPAAC) crosslinking, form robust, bioinert networks. These hydrogels can support 3D cell culture, where cell viability and colony growth depend on the fiber content.
Ceren C. Pihlamagi, David Pretzel, Peer Nölte, Kourosh Rezaei, Ulrich S. Schubert, Johannes C. Brendel   +5 more
wiley   +1 more source

Fast template tracking in video sequences

Review of Scientific Instruments, 2011
Tracking of poorly defined, rotating and/or distorted objects in a video sequence poses significant problems especially in medical diagnostics including ultrasound (sonographic) video used for examination and diagnosis of internal movement of tissue or muscle and nerve action.
Florent, Nicoud, Guillaume, Castellazzi, Peter J, Lesniewski, John C, Thomas   +3 more
openaire   +4 more sources

Contact Lens with Moiré Patterns for High‐Precision Eye Tracking

Advanced Functional Materials, EarlyView.
This work presents a passive contact lens for high‐precision eye tracking, integrating a microscopic moiré grating label. The parallax‐induced shift of macroscopic moiré patterns enables angle measurement with 0.28° precision using a standard camera under ambient light.
Ilia M. Fradkin, Roman V. Kirtaev, Mikhail S. Mironov, Dmitriy V. Grudinin, Alexander A. Marchenko, Marina M. Chugunova, Valentin R. Solovei, Alexander V. Syuy, Andrey A. Vyshnevyy, Ilya P. Radko, Aleksey V. Arsenin, Valentyn S. Volkov   +11 more
wiley   +1 more source

Cross-Video Pedestrian Tracking Algorithm with a Coordinate Constraint

Sensors
Pedestrian tracking in surveillance videos is crucial and challenging for precise personnel management. Due to the limited coverage of a single video, the integration of multiple surveillance videos is necessary in practical applications. In the realm of
Cheng Huang, Weihong Li, Guang Yang, Jiachen Yan, Baoding Zhou, Yujun Li   +5 more
doaj   +1 more source

Simultaneous recordings of human microsaccades and drifts with a contemporary video eye tracker and the search coil technique.

PLoS ONE, 2015
Human eyes move continuously, even during visual fixation. These "fixational eye movements" (FEMs) include microsaccades, intersaccadic drift and oculomotor tremor.
Michael B McCamy, Jorge Otero-Millan, R John Leigh, Susan A King, Rosalyn M Schneider, Stephen L Macknik, Susana Martinez-Conde   +6 more
doaj   +1 more source

The TREC2001 Video Track: Information Retrieval on Digital Video Information [PDF]

, 2002
The development of techniques to support content-based access to archives of digital video information has recently started to receive much attention from the research community. During 2001, the annual TREC activity, which has been benchmarking the performance of information retrieval techniques on a range of media for 10 years, included a "track" or ...
Smeaton, Alan F., Over, Paul, Costello, Cash J., de Vries, Arjen P., Doermann, David, Hauptmann, Alexander, Rorvig, Mark E., Smith, John R., Wu, Lide   +8 more
openaire   +1 more source

Lithium Intercalation in the Anisotropic Van Der Waals Semiconductor CrSBr

Advanced Functional Materials, EarlyView.
We report the lithium intercalation in the layered van der Waals crystal CrSBr, revealing strongly anisotropic ion‐migration dynamics. Optical and electrical characterization of exfoliated CrSBr shows lithium diffusion coefficients that differ by more than an order of magnitude along a‐ and b‐directions, consistent with molecular dynamics simulations ...
Kseniia Mosina, Aljoscha Söll, Jiří Šturala, Martin Veselý, Petr Levinsky, Ondřej Kaman, Florian Dirnberger, Giuliana Materzanini, Nicola Marzari, Gian‐Marco Rignanese, Borna Radatović, Vlastimil Mazánek, David Sedmidubský, Zdeněk Sofer   +13 more
wiley   +1 more source

Football player tracking for video annotation

3rd European Conference on Visual Media Production (CVMP 2006). Part of the 2nd Multimedia Conference 2006, 2006
This paper presents a method to combine unreliable player tracks from multiple cameras to obtain a unique track for each player. A recursive graph optimisation algorithm is introduced to evaluate the best association between player tracks.
Huang, P, Hilton, A
openaire   +3 more sources

Detic-Track: Robust Detection and Tracking of Objects in Video

2022 IEEE International Conference on Multimedia and Expo Workshops (ICMEW), 2022
The automatic detection and tracking of objects in a video is crucial for many video understanding tasks. We propose a novel deep learning based algorithm for object detection and tracking, which is able to detect more than 1,000 object classes and tracks them robustly, even for challenging content. The robustness of the tracking is due to the usage of
openaire   +1 more source

Structural Porosity and Low Mineral Density in Enamel Rods Drive Molar Incisor Hypomineralisation

Advanced Functional Materials, EarlyView.
This study uses advanced imaging modalities on multiple length scales to show that molar‐incisor hypomineralization does not present as a locally homogeneous pathology. Instead, microstructural defects, characterized through non‐mineralized, protein‐rich sheaths and an altered mineral structure in between prism rods, resulting in local differences in ...
Katharina Jähn‐Rickert, Johannes Krug, Gudrun Lotze, Imke A.K. Fiedler, Diana Freund, Ezgi Deniz Türkoğlu, Christine Plumeyer, Felix N. von Brackel, Anton Davydok, Manfred Burghammer, Thomas Beikler, Thomas F. Keller, Katrin Bekes, Elizabeth A. Zimmermann, Björn Busse   +14 more
wiley   +1 more source