Articles with "image focus" as a keyword



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Image focus: an uncommon cause of isolated right-sided heart failure

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Published in 2019 at "Acta Cardiologica"

DOI: 10.1080/00015385.2019.1627020

Abstract: Tuberculous constrictive pericarditis is one of the most serious sequels of tuberculous pericarditis. Often this diagnosis is delayed or missed, resulting in even worse outcomes. Considering the st... read more here.

Keywords: right sided; isolated right; focus uncommon; image focus ... See more keywords

Image focus: giant spontaneous pseudoaneurysm of the ascending aorta

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Published in 2022 at "Acta Cardiologica"

DOI: 10.1080/00015385.2022.2111124

Abstract: A 74-year-old male with known arterial hypertension, treated with amlodipine five milligrams daily, was diagnosed with a T3N2bM2 colon adenocarcinoma. As part of the necessary staging examinations, a thoracic computerised tomography (CT) scan was performed,… read more here.

Keywords: spontaneous pseudoaneurysm; giant spontaneous; giant; pseudoaneurysm ... See more keywords
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A Perceptual-Based Robust Measure of Image Focus

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Published in 2022 at "IEEE Signal Processing Letters"

DOI: 10.1109/lsp.2023.3235647

Abstract: The focus measure is commonly used in the passive autofocus imaging system, which gives a sign of the image focus level. However, most methods are sensitive to image noise. The construction of an anti-noise focus… read more here.

Keywords: image focus; based robust; perceptual based; focus ... See more keywords
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Analytical Solutions and a Clock for Orbital Progress Based on Symmetry of the Ellipse

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Published in 2023 at "Symmetry"

DOI: 10.3390/sym15030641

Abstract: Kepler’s discoveries were permitted by his remarkable insight to place the Sun at the focus of an elliptical planetary orbit. This coordinate system reduces a 2-dimensional orbit to a single spatial dimension. We consider an… read more here.

Keywords: symmetry; symmetry ellipse; focus; image focus ... See more keywords
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Adaptive window iteration algorithm for enhancing 3D shape recovery from image focus

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Published in 2019 at "Chinese Optics Letters"

DOI: 10.3788/col201917.061001

Abstract: Depth from focus (DFF) is a technique for estimating the depth and three-dimensional (3D) shape of an object from a multi-focus image sequence. At present, focus evaluation algorithms based on DFF technology will always cause… read more here.

Keywords: window iteration; adaptive window; evaluation; focus ... See more keywords