Results 71 to 80 of about 1,413 (221)

Camera-based signature verification system through Discrete Radon Transform (DRT) and Principle Component Analysis (PCA)

, 2012
This paper presents a low cost camera-based signature verification system by using discrete Radon transform (DRT) and principle component analysis (PCA).
Tee, Wilkin, Hiew, Bee-Yan, Ooi, Shih-Yin   +2 more
core  

Parameterising Arbitrary Shapes via Fourier Descriptors for Evidence-Gathering Extraction

, 1998
According to the formulation of the Hough transform it is possible to extract any shape that can be represented by an analytic equation with a number of free parameters.
Nixon, M.S., Aguado, A.S., Montiel, M.E.
core   +1 more source

Strategies for Assessing Post‐Wildfire Geomorphic Resilience in Semiarid Rivers

River Research and Applications, EarlyView.
ABSTRACT We review and summarize diverse components of a catchment that can be monitored after wildfire to assess the geomorphic resilience of the river corridor in semiarid regions. We distinguish upland portions of river catchments from river corridors.
Ellen Wohl, Shayla Triantafillou, Alex Thornton‐Dunwoody, Connor Mertz, Katie Larkin, William Keenan, Steven Griffin, Dylan Davis, Lindsey Blehm   +8 more
wiley   +1 more source

Universal Comparison Methodology for Hough Transform Approaches

Mathematics
The Hough transform (HT) is widely used in computer vision, tomography, and neural networks. Numerous algorithms for HT computation have been proposed, making their systematic comparison essential.
Danil Kazimirov, Vitalii Gulevskii, Alexey Kroshnin, Ekaterina Rybakova, Arseniy Terekhin, Elena Limonova, Dmitry Nikolaev   +6 more
doaj   +1 more source

Signal Extraction and Clustering of Partial Discharge in Motor Insulation Using Temporal Correlation‐Based Clustering

High Voltage, EarlyView.
ABSTRACT As one of the important links in energy transition and global energy interconnection, electric vehicles (EVs) are becoming increasingly major research topics in the field of energy. Partial discharge (PD) identification under repetitive impulsive voltages plays a pivotal role in evaluating the health of electric vehicle (EV) motor insulation ...
Li Wang, Jia‐Wei Zhang, Haikun Shang, Yu Zhao, Yufei Wang, Chen Song, Jianwei Zhang, Fouad Belhora   +7 more
wiley   +1 more source

Rectangles detected with the discrete Central multi-scale Radon transform

, 2021
<p>A screen recording of a demonstration mobile phone application that uses the discrete Central Radon transfom to detect, in real-time, the most prominent rectangle seen by the device's camera.</p ...
Marichal-Hernández, José G., Gómez-Cárdenes, Óscar   +1 more
core   +1 more source

A discrete approach to monogenic analysis through Radon transform

, 2012
8 pagesInternational audienceMonogenic analysis is gaining interest in the image processing community as a true signal processing tool for 2D signals. Unfortunately, it is only defined in the continuous case.
Carré, Philippe, Soulard, Raphaël
core   +1 more source

Classical Gasses with Singular Densities

Mathematics
We investigate classical continuous systems characterized by singular velocity distributions, where the corresponding Radon measures are defined over the entire space with infinite mass.
Luca Di Persio, Yuri Kondratiev, Viktorya Vardanyan   +2 more
doaj   +1 more source

Wavelength–angle characterization of high‐energy X‐ray beams from lapped Si(111) double‐crystal monochromators using rocking‐curve tomography

Journal of Synchrotron Radiation, EarlyView.
A computed‐tomography method using full‐rotation rocking curves is developed to characterize 100 keV X‐ray beams from lapped Si(111) crystals, revealing systematic wavelength broadening while maintaining constant angular divergence in DuMond space.Lapping the surfaces of Si(111) crystals in a double‐crystal monochromator (DCM) has recently been shown ...
Hiroshi Yamazaki, Kazuhiko Tahara, Yasuhiro Shimizu, Haruhiko Ohashi   +3 more
wiley   +1 more source

Using the generalized Radon transform for detection of curves in noisy images [PDF]

, 1995
In this paper the discrete generalized Radon transform will be investigated as a tool for detection of curves in noisy digital images. The discrete generalized Radon transform maps an image into a parameter domain, where curves following a specific ...
Toft, Peter Aundal, Peter A. Toft, P.A. Toft   +2 more
core   +1 more source