Results 61 to 70 of about 896 (171)

Current Trends and Advances in Image Quality Assessment

Elektronika ir Elektrotechnika, 2019
Image quality assessment (IQA) is one of the constantly active areas of research in computer vision. Starting from the idea of Universal Image Quality Index (UIQI), followed by well-known Structural Similarity (SSIM) and its numerous extensions and ...
Krzysztof Okarma
doaj   +1 more source

VR IQA NET: Deep Virtual Reality Image Quality Assessment Using Adversarial Learning [PDF]

2018 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2018
In this paper, we propose a novel virtual reality image quality assessment (VR IQA) with adversarial learning for omnidirectional images. To take into account the characteristics of the omnidirectional image, we devise deep networks including novel quality score predictor and human perception guider.
Heoun-taek Lim, Hak Gu Kim, Yong Man Ro
openaire   +2 more sources

Dynamic Factor Analysis for Sparse and Irregular Longitudinal Data: An Application to Metabolite Measurements in a COVID‐19 Study

Statistics in Medicine, Volume 45, Issue 6-7, March 2026.
ABSTRACT Factor analysis (FA) can be used to identify key biomarkers in biological processes by assuming that latent biological pathways (statistically, “latent factors”) drive the activity of measurable biomarkers (“observed variables”). However, biological pathways often interact, meaning that the classical FA assumption of independence between ...
Jiachen Cai, Robert J. B. Goudie, Brian D. M. Tom   +2 more
wiley   +1 more source

Cross-IQA: Unsupervised Learning for Image Quality Assessment

CoRR
Automatic perception of image quality is a challenging problem that impacts billions of Internet and social media users daily. To advance research in this field, we propose a no-reference image quality assessment (NR-IQA) method termed Cross-IQA based on vision transformer(ViT) model.
openaire   +2 more sources

FS-IQA: Certified Feature Smoothing for Robust Image Quality Assessment

CoRR
We propose a novel certified defense method for Image Quality Assessment (IQA) models based on randomized smoothing with noise applied in the feature space rather than the input space. Unlike prior approaches that inject Gaussian noise directly into input images, often degrading visual quality, our method preserves image fidelity while providing ...
Ekaterina Shumitskaya, Dmitriy S. Vatolin, Anastasia Antsiferova   +2 more
openaire   +2 more sources

Diaphragm Ultrasonography During Respiratory Manoeuvres

Sonography, Volume 13, Issue 1, March 2026.
ABSTRACT This study aimed to describe diaphragm ultrasonography (DU) during mouth occlusion pressure (P0.1) and maximal inspiratory pressure (MIP) in healthy participants. Four participants performed: (i) neurophysiological tests and then (ii) simultaneous DU with P0.1 and MIP.
Joao Leote, Carolina Costa, Edgar Ferreira, André Parxotamo, Maria Batista, Ricardo Loução, Filipe Gonzalez, Jacobo Bacariza, Hermínia Dias   +8 more
wiley   +1 more source

CNN-Based Medical Ultrasound Image Quality Assessment

Complexity, 2021
The quality of ultrasound image is a key information in medical related application. It is also an important index in evaluating the performance of ultrasonic imaging equipment and image processing algorithms.
Siyuan Zhang, Yifan Wang, Jiayao Jiang, Jingxian Dong, Weiwei Yi, Wenguang Hou   +5 more
doaj   +1 more source

The effectiveness of a principle‐based professional development programme in promoting teachers' high‐level talk in primary mathematics classrooms

British Journal of Educational Psychology, Volume 96, Issue 1, Page 356-381, March 2026.
Abstract Introduction We investigate whether a principle‐based professional development programme can effectively promote teachers' talk in primary mathematics classrooms. The programme aimed to implement accountable talk (AT), integrating three design principles: (a) incorporating authentic classroom episodes, alongside individual and collective ...
Noa Brandel, Merit Deri, Ronnie Karsenty, Baruch B. Schwarz   +3 more
wiley   +1 more source

Differences in response inhibition between medication‐free patients with obsessive‐compulsive disorder with and without sensory phenomena

Journal of Neuropsychology, Volume 20, Issue 1, Page 132-143, March 2026.
Abstract Obsessive‐compulsive disorder (OCD) is a heterogeneous disorder, and approximately 70% of patients with OCD experience sensory phenomena (SP). Previous studies have revealed that patients with OCD exhibit a deficit in response inhibition (RI). However, few studies have investigated the relationship between SP and RI in patients with OCD.
Keitaro Murayama, Hirofumi Tomiyama, Kenta Sashikata, Mingi Kang, Aikana Ohno, Kenta Kato, Akira Matsuo, Tomohiro Nakao   +7 more
wiley   +1 more source

Microscopic white matter changes in the cingulum contribute to memory impairment among older adults with obstructive sleep apnea in the memory clinic

Alzheimer's &Dementia, Volume 22, Issue 2, February 2026.
Abstract INTRODUCTION Obstructive sleep apnea (OSA) is prevalent in memory clinic patients and is associated with learning and memory deficits. In a memory clinic sample, we investigated the relationship between memory‐related white matter pathways and OSA.
Aaron Lam, Hannes Almgren, Jake Palmer, Angela L D'Rozario, Arkiev D'Souza, Brendon J Yee, Loren Mowszowski, Fernando Calamante, Sharon L Naismith   +8 more
wiley   +1 more source