Results 111 to 120 of about 26,933,679 (277)

Blind image and video quality assessment using natural scene and motion models [PDF]

open access: yes, 2013
textWe tackle the problems of no-reference/blind image and video quality evaluation. The approach we take is that of modeling the statistical characteristics of natural images and videos, and utilizing deviations from those natural statistics as ...
Saad, Michele Antoine
core  

A Novel Full Reference Metric for Image Quality Assessment Based on Human Vision System

open access: yes, 2011
With the tremendous growth in field of digital image processing, there is a need to store and maintain digital images efficently. Digital images are captured, processed, compressed, stored and transmitted through various devices.
Mittal, Sumit
core   +1 more source

Objective quality assessment of digital retinal images in screening study

open access: yesСистемный анализ и прикладная информатика
The paper presents a new method for automated no-reference quantitative assessment of the quality of digital retinal images for diabetic retinopathy screening. The proposed method does not require localization of anatomical structures and is based on the
Yu. I. Golub, V. Starovoitov
doaj   +1 more source

Functional comparison of EncB and EncC cargo proteins in iron storage within the Myxococcus xanthus encapsulin

open access: yesFEBS Letters, EarlyView.
Encapsulins are protein nanocompartments that play an important role in iron storage. In the Myxococcus xanthus encapsulin system, two cargo proteins called EncB and EncC contribute to iron mineralization. Here, we show that EncB and EncC generate iron‐containing minerals with distinct chemical compositions, suggesting that the composition of stored ...
Harry B. McDowell   +2 more
wiley   +1 more source

The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation

open access: yesFEBS Letters, EarlyView.
Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge   +6 more
wiley   +1 more source

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

open access: yesMolecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

Circular RNA expression landscapes in myelodysplastic neoplasms: Associations with mutational signatures and disease progression

open access: yesMolecular Oncology, EarlyView.
In this explorative study, the abundance of circular RNA molecules in bone marrow stem cells was found to be elevated in patients with high‐risk myelodysplastic neoplasms, and to be associated with an increased risk of progression to acute myeloid leukemia.
Eileen Wedge   +17 more
wiley   +1 more source

Optimizing Natural Image Quality Evaluators for Quality Measurement in CT Scan Denoising

open access: yesComputers
Evaluating the results of image denoising algorithms in Computed Tomography (CT) scans typically involves several key metrics to assess noise reduction while preserving essential details.
Rudy Gunawan   +4 more
doaj   +1 more source

KDM7A and KDM1A inhibition suppresses tumour promoting pathways in prostate cancer

open access: yesMolecular Oncology, EarlyView.
Treatment resistance is a major challenge for patients with advanced prostate cancer. This study examined an alternative approach to target the major prostate cancer‐promoting pathway by targeting epigenetic factors, whose levels are higher in tumours.
Jennie N Jeyapalan   +16 more
wiley   +1 more source

No Reference Image Quality Assessment Based on DCT and SOM Clustering

open access: yesIEEE Access
The quality of images and videos is an important research topic due to their wide applications. The research should match the human subjective evaluation of quality.
Mohammadreza Zamani   +1 more
doaj   +1 more source

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