Results 141 to 150 of about 6,631,135 (316)

Cortical Object Segregation And Categorization

, 2006
In this paper we present an improved scheme for line and edge detection in cortical area V1, based on responses of simple and complex cells, truly multi-scale with no free parameters.
Multi-Scale Line And, João Rodrigues
core  

Efficacy of Intermittent Theta‐Burst Stimulation for Prolonged Disorders of Consciousness: A Prospective, Randomized, Controlled Trial

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Emerging evidence suggests that low‐frequency neural oscillations are dynamically regulated by consciousness levels, with the recovery of low cortical activity potentially serving as a neurophysiological substrate for conscious emergence. Targeted enhancement of these low‐frequency rhythms in patients with disorders of consciousness
Chuan Xu, Jun Hu, Qianqian Wu, Min Wu, Yamei Yu, Hangcheng Li, Jian Gao, Jingqi Li, Nai Ding, Jie Yu, Benyan Luo   +10 more
wiley   +1 more source

SEGMENTATION METHODS FOR MEDICAL IMAGE ANALYSIS Blood vessels, multi-scale filtering and level set methods Gunnar Läthén

, 2010
Image segmentation is the problem of partitioning an image into meaningful parts, often consisting of an object and background. As an important part of many imaging applications, e.g.
Blood Vessels, Multi-scale Filtering
core  

Stability, Structure and Scale: Improvements in Multi-modal Vessel Extraction for SEEG Trajectory Planning

, 2015
Purpose Brain vessels are among the most critical landmarks that need to be assessed for mitigating surgical risks in stereo-electroencephalography (SEEG) implantation. Intracranial haemorrhage is the most common complication associated with implantation,
Anna Miserocchi, John S. Duncan, Achhala, S, Mark Nowell, Duncan, JS, Alex F. Mendelson, Maria A. Zuluaga, Sufyan Achhala, Sébastien Ourselin, Gergely Zombori, Cardoso, MJ, Ourselin, S, Nowell, M, M. Jorge Cardoso, Zombori, G, Mendelson, AF, Miserocchi, A, Rodionov, R, Roman Rodionov, Zuluaga Valencia, MA, McEvoy, AW, Andrew W. McEvoy   +21 more
core   +1 more source

Posterior Cortical Atrophy in the Asia‐Pacific: A Report From the PCA Asian Workgroup

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Posterior Cortical Atrophy (PCA) is a distinct dementia syndrome primarily affecting spatial abilities and visual processing. It is associated with degeneration in the posterior part of the brain. PCA is subclassified into PCA‐pure and PCA‐plus syndromes based on consensus criteria.
Yuttachai Likitjaroen, Ya‐Ting Chang, Levinia Lim, Pai‐Yi Chiu, Jung‐Lung Hsu, SangYun Kim, Wataru Narita, Na Young Ryoo, Kyoko Suzuki, Nagaendran Kandiah, Sebastian Crutch, Ming‐Chyi Pai   +11 more
wiley   +1 more source

Mechanistic insights into cracking suppression through process-induced microstructure relaxation in Ti-6242Si

Materials & Design
Ti-6242Si processed via laser powder bed fusion (LPBF) presents challenges in achieving crack-free components with low occurrence of pore defects. In this study, processing diagrams and temperature prediction models were employed to investigate the ...
Sagar Patel, Mohsen K. Keshavarz, Ali Rezaei, Sharon Ann Varghese, Mihaela Vlasea   +4 more
doaj   +1 more source

Dissolution of Cavities and Porous Media: a Multi-Scale View [PDF]

, 2013
Dissolution of underground cavities or porous media involves many different scales that must be taken into account in modeling attempts. This paper presents a review of some of these problems.
Quintard, Michel
core  

Normal‐Appearing White Matter Injury Mediates Chronic Deep Venous Hypoxia and Disease Progression in Multiple Sclerosis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To explore how cerebral hypoxia and Normal‐Appearing White Matter (NAWM) integrity affect MS lesion burden and clinical course. Methods Seventy‐nine MS patients, including 13 clinically isolated syndrome (CIS) patients and 66 relapsing–remitting multiple sclerosis (RRMS) patients, and 44 healthy controls (HCs) were recruited from ...
Xinli Wang, Huiying Wang, Zhizheng Zhuo, Ai Guo, Ke Lv, Decai Tian, Chao Chai, Yunyun Duan, Shuang Xia   +8 more
wiley   +1 more source

Autonomous Magnetic Navigation in Endoscopic Image Mosaics

Advanced Science
Endoscopes navigate within the human body to observe anatomical structures with minimal invasiveness. A major shortcoming of their use is their narrow field‐of‐view during navigation in large, hollow anatomical regions.
Michelle Mattille, Quentin Boehler, Jonas Lussi, Nicole Ochsenbein, Ueli Moehrlen, Bradley J. Nelson   +5 more
doaj   +1 more source

Downscaling and Gap-Filling GRACE-Based Terrestrial Water Storage Anomalies in the Qinghai–Tibet Plateau Using Deep Learning and Multi-Source Data

Remote Sensing
The Qinghai–Tibet Plateau (QTP), a critical hydrological regulator for Asia through its extensive glacier systems, high-altitude lakes, and intricate network of rivers, exhibits amplified sensitivity to climate-driven alterations in precipitation regimes
Jun Chen, Linsong Wang, Chao Chen, Zhenran Peng   +3 more
doaj   +1 more source