Results 41 to 50 of about 2,035,117 (267)

A Two-Staged Feature Extraction Method Based on Total Variation for Hyperspectral Images

Remote Sensing, 2022
Effective feature extraction (FE) has always been the focus of hyperspectral images (HSIs). For aerial remote-sensing HSIs processing and its land cover classification, in this article, an efficient two-staged hyperspectral FE method based on total ...
Chunchao Li, Xuebin Tang, Lulu Shi, Yuanxi Peng, Yuhua Tang   +4 more
doaj   +1 more source

On Approximating Total Variation Distance

Proceedings of the Thirty-Second International Joint Conference on Artificial Intelligence, 2023
Total variation distance (TV distance) is a fundamental notion of distance between probability distributions. In this work, we introduce and study the problem of computing the TV distance of two product distributions over the domain {0,1}^n. In particular, we establish the following results. 1. The problem of exactly computing the TV distance of two
Arnab Bhattacharyya 0001, Sutanu Gayen, Kuldeep S. Meel, Dimitrios Myrisiotis, A. Pavan 0001, N. V. Vinodchandran   +5 more
openaire   +2 more sources

Hyperspectral Feature Extraction Using Sparse and Smooth Low-Rank Analysis

Remote Sensing, 2019
In this paper, we develop a hyperspectral feature extraction method called sparse and smooth low-rank analysis (SSLRA). First, we propose a new low-rank model for hyperspectral images (HSIs) where we decompose the HSI into smooth and sparse components ...
Behnood Rasti, Pedram Ghamisi, Magnus O. Ulfarsson   +2 more
doaj   +1 more source

Weighted and Well-Balanced Nonlinear TV-Based Time-Dependent Model for Image Denoising

Chaos Theory and Applications, 2023
The partial differential equation (PDE)-based models are widely used to remove additive Gaussian white noise and preserve edges, and one of the most widely used methods is the total variation denoising algorithm.
Khursheed Alam, Alka Chauhan, Santosh Kumar   +2 more
doaj   +1 more source

Health‐Related Social Needs in Children With Sickle Cell Disease Are Associated With Worse Health‐Related Quality of Life

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Children with sickle cell disease (SCD) face multiple acute and chronic medical complications that may impact their quality of life as reported by patients themselves. Health‐related social needs (HRSNs), such as food and housing insecurity, are common in people with SCD, but the association between HRSNs and patient‐reported ...
Sarah J. Marks, Molly Sonenklar, Cerelia Donald, Cecelia Valrie, Wally Smith, India Sisler   +5 more
wiley   +1 more source

Cup‐Like Nuclei Is a Hallmark of DUX4/ERG Acute Lymphoblastic Leukemia and Reveals Cytoplasmic Mitochondria Accumulation

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Cup‐like nuclei are a distinctive morphological feature observed in certain cases of acute lymphoblastic leukemia (ALL). We provide evidence that they characterize DUX4/ERG ALL independently of IKZF1 deletion and reveal marked mitochondrial accumulation in this ALL subset.
Chloé Arfeuille, Hugo Roux, Odile Fenneteau, Aurélie Caye‐Eude, Alexia Kinoo, Yoann Vial, André Baruchel, Marion Strullu, Elodie Lainey, Hélène Cavé   +9 more
wiley   +1 more source

CMOS Fixed Pattern Noise Removal Based on Low Rank Sparse Variational Method

Applied Sciences, 2020
Fixed pattern noise (FPN) has always been an important factor affecting the imaging quality of CMOS image sensor (CIS). However, the current scene-based FPN removal methods mostly focus on the image itself, and seldom consider the structure information ...
Tao Zhang, Xinyang Li, Jianfeng Li, Zhi Xu   +3 more
doaj   +1 more source

Genomic Diversity and Clinical Variability in Pediatric Primary Cutaneous Anaplastic Large Cell Lymphoma: A Case Series

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Primary cutaneous anaplastic large cell lymphoma (pcALCL) is a rare pediatric CD30‐positive T‐cell lymphoproliferative disorder with an excellent prognosis, but its genomic drivers are poorly defined. We report three children with skin‐limited disease demonstrating striking molecular heterogeneity, including NPM::ALK, NUP214::FRK, and a novel ...
Shoshana Greenberger, Efrat Bar‐Ilan, Victoria Marcu, Evgeny Grishin, Rinat Yacobi, Aviv Barzilai, Hana Golan, Assaf Arie Barg   +7 more
wiley   +1 more source

Edge-Aware Unidirectional Total Variation Model for Stripe Non-Uniformity Correction

Sensors, 2018
The problem of stripe non-uniformity in array-based infrared imaging systems has been the focus of many research studies. Among the proposed correction techniques, total variation models have been proven to significantly reduce the effect of this type of
Ayoub Boutemedjet, Chenwei Deng, Baojun Zhao   +2 more
doaj   +1 more source

The Combined Effect of Obesity and Contraceptive Use on Pulmonary Embolism in Adolescent Females Residing in the United States

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Combined oral contraceptive (COC) use in obese adult women dramatically increases the relative risk of developing a pulmonary embolism (PE). The risk of a PE in obese adolescent females taking contraceptives is currently unknown. The purpose of this investigation was to determine the effect of body mass index (BMI) and contraceptive
John Puetz, Joanne Salas
wiley   +1 more source