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A sub-pixel edge detector: an implementation of the Canny/Devernay Algorithm
(Udelar. FI-IIE, 2017)
An image edge detector is described which produces chained edge points with sub-pixel accuracy.
The method incorporates the main ideas of the classic Canny and Devernay algorithms. The
analysis shows that a slight ...
Quantum theory of spin waves in finite chiral spin chains
(American Physical Society, 2014)
We calculate the effect of spin waves on the properties of finite-size spin chains with a chiral spin ground
state observed on biatomic Fe chains deposited on iridium(001). The system is described with a Heisenberg
model ...
Two problems about convex polygons in discrete geometry
(Facultad de Ciencias - UASLP, 2022)
The density profile of the six vertex model with domain wall boundary conditions
(IOP Publishing, 2020)
The 'breaking the chains' migration model for super-Earth foation: The effect of collisional fragmentation
(2022-01-01)
Planets between 1 and 4 R (Earth radius) with orbital periods <100 d are strikingly common. The migration model proposes that super-Earths migrate inwards and pile up at the disc inner edge in chains of mean motion resonances. ...
Protein cutoff scanning: aplicação da varredura exaustiva de distâncias inter-resíduos na análise de contatos intracadeia em proteínas globulares
(Universidade Federal de Minas GeraisUFMG, 2008-02-27)
In this study we carried out a comparative analysis between two classical methodologies used to prospect residue contacts in proteins: the traditional cutoff dependent (CD) approach and the cutoff free Delaunay tessellation ...
Edge linking and image segmentation by combining optical and digital methods
(2013)
We present a hybrid method for segmentation of intensity images, which combines an optical contouring technique and digital algorithms for linking edge points or image segmentation. In a first stage, the digital image to ...