Results 11 to 20 of about 100,690 (267)

Robust Image Processing Framework for Intelligent Multi-Stage Malaria Parasite Recognition of Thick and Thin Smear Images

open access: yesDiagnostics, 2023
Malaria is a pressing medical issue in tropical and subtropical regions. Currently, the manual microscopic examination remains the gold standard malaria diagnosis method. Nevertheless, this procedure required highly skilled lab technicians to prepare and
Thaqifah Ahmad Aris   +5 more
doaj   +1 more source

On the threshold of intractability [PDF]

open access: yesJournal of Computer and System Sciences, 2015
We study the computational complexity of the graph modification problems Threshold Editing and Chain Editing, adding and deleting as few edges as possible to transform the input into a threshold (or chain) graph. In this article, we show that both problems are NP-complete, resolving a conjecture by Natanzon, Shamir, and Sharan (Discrete Applied ...
Pål Grønås Drange   +3 more
openaire   +2 more sources

Threshold sampling

open access: yesTheoretical Computer Science, 2023
Abstract We consider the problem of sampling elements with some desired property from a large set, without testing the property of interest, but with the (probabilistic) assurance to have at least one match among the random sample. Like in ranked set sampling, we consider an infinite population under study, whose properties of interest are too ...
Rass, Stefan   +3 more
openaire   +1 more source

Prevalence and practices of immunofluorescent cell image processing: a systematic review

open access: yesFrontiers in Cellular Neuroscience, 2023
BackgroundWe performed a systematic review that identified at least 9,000 scientific papers on PubMed that include immunofluorescent images of cells from the central nervous system (CNS).
Hawley Helmbrecht   +5 more
doaj   +1 more source

Shell rupture threshold, fragmentation threshold, blake threshold [PDF]

open access: yesIEEE Ultrasonics Symposium, 2005., 2006
The disruption of contrast agent microbubbles has been implicated in novel techniques for high-MI imaging and local drug delivery. At MI>0.6, microbubble fragmentation has been observed with thin-shelled agent (≈10 nm), and shell rupture with thick-shelled agent (≈250 nm).
Postema, Michiel   +2 more
openaire   +2 more sources

Renkli Görüntüler İçin Tek Boyutlu Histogram

open access: yesDüzce Üniversitesi Bilim ve Teknoloji Dergisi, 2018
Histogramsayısal görüntülerdeki piksellerin dağılımını gösteren önemli bir bilgi temsilyöntemidir. Gri seviyeli görüntülerde tek boyutlu dizi işlenirken, renkligörüntülerde üç boyutlu dizinin analizinin yapılması gereklidir.
Mahmut Kılıçaslan   +2 more
doaj   +1 more source

Effects of thresholding on correlation-based image similarity metrics

open access: yesFrontiers in Neuroscience, 2015
The computation of image similarity is important for a wide range of analyses in neuroimaging, from decoding to meta-analysis. In many cases the images being compared have empty voxels, but the effects of such empty voxels on image similarity metrics ...
Vanessa V Sochat   +6 more
doaj   +1 more source

Segmentation by Fractional Order Darwinian Particle Swarm Optimization Based Multilevel Thresholding and Improved Lossless Prediction Based Compression Algorithm for Medical Images

open access: yesIEEE Access, 2019
The image segmentation refers to the extraction of region of interest and it plays a vital role in medical image processing. This work proposes multilevel thresholding based on optimization technique for the extraction of region of interest and ...
A. Ahilan   +11 more
doaj   +1 more source

Alternative Thresholding Technique for Image Segmentation Based on Cuckoo Search and Generalized Gaussians

open access: yesMathematics, 2021
Object segmentation is a widely studied topic in digital image processing, as to it can be used for countless applications in several fields. This process is traditionally achieved by computing an optimal threshold from the image intensity histogram ...
Jorge Munoz-Minjares   +3 more
doaj   +1 more source

A new straightforward method for semi-automated segmentation of trabecular bone from cortical bone in diverse and challenging morphologies

open access: yesRoyal Society Open Science, 2021
Many physiological, biomechanical, evolutionary and clinical studies that explore skeletal structure and function require successful separation of trabecular from cortical compartments of a bone that has been imaged by X-ray micro-computed tomography ...
Eva C. Herbst   +5 more
doaj   +1 more source

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