Results 41 to 50 of about 3,006,340 (243)

Gravity‐Dependent Modulation of Downbeat Nystagmus: Insights From Velocity‐Storage Dysfunction

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Downbeat nystagmus varies with head position, a phenomenon termed gravity‐dependent modulation. We aimed to clarify its mechanism using a velocity‐storage model. Methods In 10 patients with downbeat nystagmus due to cerebellar disorders, we recorded eye movements at different pitch‐ and roll‐axis head positions.
Ji‐Hyung Park, Eun‐Hyuk Choi, Jorge Otero‐Millan, David S. Zee, Jeong‐Yoon Choi, Ji‐Soo Kim   +5 more
wiley   +1 more source

Arterial Spin‐Labeling MRI at the Cortical‐CSF Interface: A Novel Biomarker in Alzheimer Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background/Objective Arterial spin‐labeling (ASL) MRI can measure perfusion signal adjacent to CSF spaces and may provide information regarding CSF‐adjacent water transport physiology. We developed an automated pipeline to extract cortical‐CSF interface (IF) perfusion for comparison between Alzheimer disease (AD) and cognitively normal ...
Mona Asghariahmadabad, Pouya Metanat, Michael Thomas, Luke W. Bonham, Tyson Lam, Mehmet Kurt, Hong Nguyen, Tara Ellingson, Mauro Zucchelli, Stefano Casagranda, Quin Lu, Andreas M. Rauschecker, Leo Sugrue, Luis E. Savastano, Christopher P. Hess, Kamalini Ranasinghe, S. Andrew Josephson, Bruce L. Miller, Jennifer S. Yokoyama, Gil D. Rabinovici, Peter A. Ljubenkov, Lawren VandeVrede, Kambiz Nael   +22 more
wiley   +1 more source

Bat echolocation behavior from highspeed 3D video [PDF]

, 2011
As part of the ChiRoPing research project we have been observing the 3D position and orientation of several different species of bats, as well as making measurements of different aspects of their bodies.
Xiao, Y., Fisher, R. B.
core  

Multi-Layer Features Fusion Model-Guided Low-Complexity 3D-HEVC Intra Coding

IEEE Access
Three-dimensional (3D) video with depth information is essential for many applications in the consumer electronics industry. The 3D-high efficiency video coding (3D-HEVC) is the latest 3D video coding standard.
Chang Liu, Kebin Jia
doaj   +1 more source

Dynamic adaptive streaming over HTTP-based 3D resource allocation algorithm

The Journal of Engineering, 2019
With the improvement of people's quality of life, the demand for three-dimensional (3D) video has gradually grown in recent years. However, there are many challenges to providing high-definition and high-fidelity 3D video.
Yujie Deng, Zhan Xu, Zhigang Tian
doaj   +1 more source

Automated Hand Flexor Tendon–Thickness Measurement in Systemic Sclerosis

Arthritis Care &Research, EarlyView.
Objective Systemic sclerosis (SSc) can affect flexor tendons, contributing to hand function problems and reduced quality of life. Tendon changes are currently assessed with ultrasonography and measured manually, a time‐consuming process prone to interobserver variability.
Mark Greveling, Ties van het Erve, Yvette van de Berg, Simon Mastbergen, Julia Spierings   +4 more
wiley   +1 more source

A Novel Approach to Assess Sleep-Related Rhythmic Movement Disorder in Children Using Automatic 3D Analysis

Frontiers in Psychiatry, 2019
Background: Unlike other episodic sleep disorders in childhood, there are no agreed severity indices for rhythmic movement disorder. While movements can be characterized in detail by polysomnography, in our experience most children inhibit rhythmic ...
Markus Gall, Bernhard Kohn, Christoph Wiesmeyr, Rachel M. van Sluijs, Rachel M. van Sluijs, Elisabeth Wilhelm, Quincy Rondei, Lukas Jäger, Peter Achermann, Peter Achermann, Peter Achermann, Hans-Peter Landolt, Hans-Peter Landolt, Oskar G. Jenni, Oskar G. Jenni, Robert Riener, Robert Riener, Robert Riener, Heinrich Garn, Catherine M. Hill   +19 more
doaj   +1 more source

DEVELOPMENT OF 3D CITY MODEL USING VIDEOGRAMMETRY TECHNIQUE [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019
3D city model is a representation of urban area in digital format that contains building and other information. The current approaches are using photogrammetry and laser scanning to develop 3D city model.
A. Hairuddin, S. Azri, U. Ujang, M. G. Cuétara, G. M. Retortillo, S. Mohd Salleh   +5 more
doaj   +1 more source

Controlling Grain Growth in Powder Bed Fusion of Yttria‐Stabilized Zirconia Using Femtosecond Lasers: Challenges and Methodological Insights

Advanced Engineering Materials, EarlyView.
Binder‐free laser powder bed fusion of 8YSZ with a femtosecond laser is used to map process windows linking scan strategy, heat accumulation, and grain growth. Time‐resolved thermography and simulations reveal thermal regimes that enable continuous, vitrified, and fine‐grained 8YSZ surface layers without absorptive additives and demonstrate ...
Markus Kühn, Sarah Kaden, Andrea Barz, Daniel Störzner, Jens Bliedtner, Andrés Fabián Lasagni   +5 more
wiley   +1 more source

Sliding Adjustment for 3D Video Representation

EURASIP Journal on Advances in Signal Processing, 2002
This paper deals with video coding of static scenes viewed by a moving camera. We propose an automatic way to encode such video sequences using several 3D models.
Galpin Franck, Morin Luce
doaj   +1 more source