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Mostrando ítems 1-10 de 17
Detection and thinning of edges in previously known directions
(Universidade Federal do Paraná (UFPR), Centro Politecnico, 2009-01-01)
This work presents a study on the generation of digital masks aiming at edge detection with previously known directions. This solution is important when edge direction is available either from a direction histogram or from ...
Detecção e afinamento de bordas em direções previamente conhecidas
(2009-08-04)
This work presents a study on the generation of digital masks aiming at edge detection with previously known directions. This solution is important when edge direction is available either from a direction histogram or from ...
3D edge detection based on Boolean functions and local operators
(World ScientificSingapore, 2015)
Edge detection is one of the most commonly used operations in image processing and computer vision areas. Edges correspond to the boundaries between regions in an image, which are useful for object segmentation and recognition ...
3d Edge Detection Based On Boolean Functions And Local Operators
(WORLD SCIENTIFIC PUBL CO PTE LTDSINGAPORE, 2015)
Multi-Scale Landscape Influences on Genetic Diversity and Adaptive Traits in a Neotropical Savanna Tree
(Frontiers Media Sa, 2020-03-25)
Changes in landscape structure can affect essential population ecological features, such as dispersal and recruitment, and thus genetic processes. Here, we analyze the effects of landscape metrics on adaptive quantitative ...
Anisotropic BV–L2 regularization of linear inverse ill-posed problems
(Academic Press Inc Elsevier Science, 2017-06)
During the last two decades several generalizations of the traditional Tikhonov-Phillips regularization method for solving inverse ill-posed problems have been proposed. Many of these variants consist essentially of ...
MagAO imaging of long-period objects (MILO). II. A puzzling white dwarfaround the sun-like star HD 11112
(IOP Publishing, 2016)
HD 11112 is an old, Sun-like star that has a long-term radial velocity (RV) trend indicative of a massive companion on a wide orbit. Here we present direct images of the source responsible for the trend using the Magellan ...
Separating extended disc features from the protoplanet in PDS 70 using VLT/SINFONI
(Oxford University Press, 2019)
Transition discs are prime targets to look for protoplanets and study planet.disc interactions. We present VLT/SINFONI observations of PDS 70, a transition disc with a recently claimed embedded protoplanet. We take advantage ...
Snake‐based model for automatic roof boundary extraction in the object space integrating a high‐resolution aerial images stereo pair and 3d roof models
(2021-04-02)
The accelerated urban development over the last decades has made it necessary to update spatial information rapidly and constantly. Therefore, citiesʹ three‐dimensional models have been widely used as a study base for ...