Buscar
Mostrando ítems 11-20 de 2045
Classification of LiDAR data over building roofs using k-means and principal component analysisClassificação de dados LiDAR sobre telhados de edificações usando k-médias e análise de componentes principais
(2018-01-01)
The classification is an important step in the extraction of geometric primitives from LiDAR data. Normally, it is applied for the identification of points sampled on geometric primitives of interest. In the literature ...
Georeferenced road extraction and formulation of hypotheses for new road segments
(2000-01-01)
The acquisition and update of Geographic Information System (GIS) data are typically carried out using aerial or satellite imagery. Since new roads are usually linked to georeferenced pre-existing road network, the extraction ...
A brief analysis of the holistically-nested edge detector
(Centre Borelli, ENS Paris-Saclay; DMI, Universitat de les Illes Balears; Fing, Universidad de la República., 2022)
This work describes the HED method for edge detection. HED uses a neural network based on a VGG16 backbone, supplemented with some extra layers for merging the results at different scales. The training was performed on an ...
Edge Enhancement Investigations by Means of Experiments and Simulations
(Elsevier, 2017-06)
Standard neutron imaging procedures are based on the “shadow” of the transmitted radiation, attenuated by the sample material. Under certain conditions significant deviations from pure transmission can be found in the form ...
Clustering based physical-layer authentication in edge computing systems with asymmetric resources
(MDPI AG, 2019)
In this paper, we propose a clustering based physical-layer authentication scheme (CPAS) to overcome the drawback of traditional cipher-based authentication schemes that suffer from heavy costs and are limited by ...
SherlockFog: a new tool to support application analysis in Fog and Edge computing
(Springer, 2019-05)
The Fog and Edge Computing paradigms have emerged as a solution to limitations of the Cloud Computing model to serve a huge amount of connected devices efficiently. These devices have unused computing power that could be ...
Road segment delineation using active testing principle and an edge-based post-processing strategy
(2003-12-01)
This paper presents a semi-automated method for extracting road segments from medium-resolution images based on active testing and edge analysis. The method is based on two sequential and independent stages. Firstly, an ...
Road segment delineation using active testing principle and an edge-based post-processing strategy
(2003-12-01)
This paper presents a semi-automated method for extracting road segments from medium-resolution images based on active testing and edge analysis. The method is based on two sequential and independent stages. Firstly, an ...
A comparison of gradient versus color and texture analysis for lane detection and tracking
(IEEE, 2009)
Accurate lane detection in real-time is a critical task in autonomous vehicle guidance and lane departure warning for driver assistance. Existing vision-based approaches rely mostly on some analysis of the spatial gradient ...
An exact series solution for the vibration analysis of cylindrical shells with arbitrary boundary conditions
(2013-03-01)
In this paper, an exact series solution for the vibration analysis of circular cylindrical shells with arbitrary boundary conditions is obtained, using the elastic equations based on Flügge's theory. Each of the three ...