Results 71 to 80 of about 57,221 (223)
An algebraic approach to Hough transforms
Journal of Algebra, 2012 The main purpose of this paper is to lay the foundations of a general theory which encompasses the features of the classical Hough transform and extend them to general algebraic objects such as affine schemes. The main motivation comes from problems of detection of special shapes in medical and astronomical images.
BELTRAMETTI, MAURO CARLO +1 more
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Representing Directions for Hough Transforms [PDF]
, 2007 Many algorithms in computer vision operate with directions, i. e. with representations of 3D-points by ignoring their distance to the origin. Even though minimal parametrizations of directions may contain singularities, they can enhance convergence in optimization algorithms and are required e. g. for accumulator spaces in Hough transforms.
Wenzel, Fabian, Grigat, Rolf-Rainer
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Remote Sensing, 2023 Traditional two-step localization methods and direct localization methods have practical problems when they are used for underwater acoustic source localization.
Lu Wang +4 more
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Computational methods for automated center determination in electron diffraction patterns
Journal of Applied Crystallography, EarlyView.This study evaluates and compares automated methods for center detection in 2D diffractograms. The methods have been implemented in EDIFF, an open‐source user‐friendly Python package for the processing of electron diffraction patterns.Accurate center detection in electron diffraction patterns is critical for all subsequent processing of experimental ...
Pavlina Sikorova +3 more
wiley +1 more source
CT Lilun yu yingyong yanjiuIn this paper, a Hough transform method based on image gradient featured extraction is proposed to eliminate the ring artifacts of CT scanning system.
Bicheng LIU +4 more
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Cybernetics and Information Technologies, 2018 This paper proposes an algorithm that assesses the angular orientation of a mobile robot with respect to its referential position or a map of the surrounding space.
Aldoshkin Dmitry N., Tsarev Roman Y.
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The intersective Hough transform for geophysical applications
Geofísica Internacional, 2014 La transformada de Hough es una herramienta ampliamente utilizada para identificación de alineamientos, pero el método de votación utilizado usualmente en esta transformada presenta serios problemas cuando las alineaciones no son exactas.
F. Alejandro Nava
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The Coherent Circle Hough Transform [PDF]
Procedings of the British Machine Vision Conference 1993, 1993 We introduce a novel formulation of the Circle Hough Transform that we call the Coherent Circle Hough Transform. The technique uses phase to code for radii of circles. The usual simplifications of the Circle Hough Transform (CHT) are used in which lines pointing away from edge points are plotted rather than circles.
Tim J. Atherton, Darren J. Kerbyson
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Cefdinir binding to a class A β‐lactamase revealed by serial cryo‐crystallography
Acta Crystallographica Section D, EarlyView.Serial cryo‐crystallography reveals the structure of the extended‐spectrum β‐lactamase CTX‐M‐14 in complex with the third‐generation cephalosporin antibiotic cefdinir.One of the most common resistance mechanisms against antibiotics employed by Gram‐negative bacteria involves the production of β‐lactamases, resulting in rapid hydrolysis of the ...
Gargi Gore +4 more
wiley +1 more source
, 2018 The quality of eye image data become degraded particularly when the image is taken in the non-cooperative acquisition environment such as under visible wavelength illumination.
Ahmad, Asraful Syifaa’ +6 more
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