Results 71 to 80 of about 56,657 (221)

The intersective Hough transform for geophysical applications

open access: yesGeofísica 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
doaj   +1 more source

‘Mere Amateurs’? Elementary Teachers and the Making of Scientific Authority in the British Child Study Movement

open access: yesHistory, EarlyView.
Abstract This article offers new perspectives on the relationship between elementary teaching, scientific expertise and the professionalization of the human sciences. Previous scholarship has demonstrated the ready existence of ‘amateur’ science societies in the nineteenth century where cross‐class exchanges were common.
Julia Gustavsson
wiley   +1 more source

Progressive Probabilistic Hough Transform [PDF]

open access: yesProcedings of the British Machine Vision Conference 1998, 1998
This thesis presents the Progressive Probabilistic Hough Transform (PPHT). Unlike the Probabilistic HT [46] where the Standard HT is performed on a pre-selected fraction of input points, the PPHT minimises the amount of computation needed to detect lines by exploiting the difference in the fraction of votes needed to reliably detect lines with ...
J. Matas, C. Galambos, J. Kittler
openaire   +1 more source

Expanding Phenotype of GINS1 Deficiency: A Case Report and Review of the Literature

open access: yesClinical Genetics, EarlyView.
The authors present a novel case and review of individuals with GINS1 deficiency, causing severe growth restriction and combined immunodeficiency. Only the ninth case of this ultrarare disorder, it highlights the role of these variants in disease, glaucoma as a feature, and the possibility of immunodeficiency without infections in affected individuals.
Michael P. Mackley   +6 more
wiley   +1 more source

Multi-Stage Hough Space Calculation for Lane Markings Detection via IMU and Vision Fusion

open access: yesSensors, 2019
It is challenging to achieve robust lane detection based on a single frame, particularly when complicated driving scenarios are present. A novel approach based on multiple frames is proposed in this paper by taking advantage of the fusion of vision and ...
Yi Sun, Jian Li, Zhenping Sun
doaj   +1 more source

Detection of Airport Runway Edges using Line Detection Techniques [PDF]

open access: yes, 2011
Airport runway detection is a vital aspect for both military and commercial applications. An algorithm to extract runway edges based on edge detection and line detection techniques is discussed.
Garlin, Delphina, Naidu, VPS
core  

An Improved Iris Segmentation Technique Using Circular Hough Transform [PDF]

open access: yes, 2018
It is quite easy to spoof an automated iris recognition system using fake iris such as paper print and artificial lens. False Rejection Rate (FRR) and False Acceptance Rate (FAR) of a specific approach can be as a result of noise introduced in the ...
Ajulibe, Akachukwu   +3 more
core   +1 more source

An algebraic approach to Hough transforms

open access: yesJournal 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
openaire   +4 more sources

Evolution of Patient and Public Involvement and Engagement in Health‐Related Research: A Concept Analysis

open access: yesJournal of Advanced Nursing, EarlyView.
ABSTRACT Aims To clarify the definition and evolution of Patient and Public Involvement and Engagement (PPIE) and identify its attributes, antecedents, and consequences in health‐related research. Design This study follows Rodgers' evolutionary concept analysis with a seven‐step framework.
Wenze Lu   +9 more
wiley   +1 more source

Polar plumes' orientation and the Sun's global magnetic field [PDF]

open access: yes, 2013
We characterize the orientation of polar plumes as a tracer of the large-scale coronal magnetic field configuration. We monitor in particular the north and south magnetic pole locations and the magnetic opening during 2007-2008 and provide some ...
Cameron, Robert   +2 more
core   +1 more source

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