Results 71 to 80 of about 5,912,595 (286)

An Efficient Image Reconstruction Framework Using Total Variation Regularization with Lp-Quasinorm and Group Gradient Sparsity

open access: yesInformation, 2019
The total variation (TV) regularization-based methods are proven to be effective in removing random noise. However, these solutions usually have staircase effects.
Fan Lin   +5 more
doaj   +1 more source

Tube-Based Taut String Algorithms for Total Variation Regularization

open access: yesMathematics, 2020
Removing noise from signals using total variation regularization is a challenging signal processing problem arising in many practical applications.
Artyom Makovetskii   +3 more
doaj   +1 more source

When total variation is additive [PDF]

open access: yesProceedings of the American Mathematical Society, 1982
Let f f and g g be continuous functions of bounded variation on [ 0 , 1 ] [0,1] . We use the Dini derivates of f f and g g to give a necessary and sufficient condition that the equation V ( f +
openaire   +2 more sources

Minimizing total variation flow [PDF]

open access: yesComptes Rendus de l'Académie des Sciences - Series I - Mathematics, 2000
Summary: We prove existence and uniqueness of weak solutions for the minimizing total variation flow with initial data in \(L^1\) under Neumann boundary conditions. We prove that the \({\mathcal H}^{N-1}\) measure of the boundaries of level sets of the solution decreases with time, as one would expect.
Andreu, F.   +3 more
openaire   +3 more sources

Utility of Computed Tomography Surveillance of Asymptomatic Infection in Children and Young Adults Before Allogeneic Hematopoietic Stem Cell Transplant

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Asymptomatic infection poses a significant risk for children undergoing hematopoietic stem cell transplantation (HSCT). Pre‐transplant surveillance computed tomography (CT) is commonly used to identify occult infection, though its diagnostic yield remains uncertain.
Tyler Obermark   +9 more
wiley   +1 more source

Unheard and Under‐Supported: Health‐Related Quality of Life in Children, Adolescents, and Young Adults With Sickle Cell Disease

open access: yesPediatric Blood &Cancer, EarlyView.
Abstract Background Sickle cell disease (SCD) is an autosomal recessive hemoglobinopathy affecting millions of individuals worldwide. The clinical expression and psychosocial burden of SCD vary widely across geographical, cultural, and healthcare system contexts, underscoring the need for setting‐specific approaches to assessment.
Desiré Fantasia   +7 more
wiley   +1 more source

Imaging of High‐Risk Neuroblastoma: Recommendations From SIOPEN Radiology and Nuclear Medicine Specialty Committees

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Neuroblastoma is the most common extracranial solid tumor in early childhood. Its clinical behavior is highly variable, ranging from spontaneous regression to fatal outcome despite intensive treatment. The International Society of Pediatric Oncology Europe Neuroblastoma Group (SIOPEN) Radiology and Nuclear Medicine Specialty Committees ...
Annemieke Littooij   +11 more
wiley   +1 more source

Effects of Cancer Treatment on Somatosensory and Nociceptive Processing in Children and Adolescents: A Systematic Review

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Chemotherapy‐induced peripheral neuropathy remains a major complication in pediatric cancer, with disrupted somatosensory and nociceptive processing being a key aspect. This review synthesizes empirical studies on alterations in somatosensory and nociceptive processing in children and adolescents with cancer.
Julia Schweiger   +4 more
wiley   +1 more source

The Total Variation Flow in RN

open access: yesJournal of Differential Equations, 2002
In this paper, we study the minimizing total variation flow ut=div(Du/∣Du∣) in N for initial data u0 in Lloc1(N), proving an existence and uniqueness result. Then we characterize all bounded sets Ω of finite perimeter in 2 which evolve without distortion of the boundary.
BELLETTINI G   +2 more
openaire   +5 more sources

Results of the Childhood Cancer and Leukaemia Group's United Kingdom Relapsed Wilms Tumour Trial

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background The United Kingdom relapsed Wilms tumour (UKW‐R) trial aimed to improve the historically low survival rates after relapse of Wilms tumour (WT) through a prospective national risk‐stratified protocol. The trial also evaluated efficacy and toxicity of high‐dose melphalan.
Sucheta J. Vaidya   +10 more
wiley   +1 more source

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