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Mostrando ítems 1-10 de 43
Um estudo sobre o osu do modelo de cor RGB no proceso de correspondência por correlação
(2007-01-01)
Image matching is one of the most important processes in Digital Photogrammetry, since it allows the automation of several stages of the photogrammetric pipeline. In most of the commercial software nowadays available, the ...
A photogrammetric method for single image orientation and measurement
(2005-06-01)
The aim of this paper is to present a photogrammetric method for determining the dimensions of flat surfaces, such as billboards, based on a single digital image. A mathematical model was adapted to generate linear equations ...
Classificação automática de padrões projetados por um sistema de luz estruturada
(2005-01-01)
One of the main problems in Computer Vision and Close Range Digital Photogrammetry is 3D reconstruction. 3D reconstruction with structured light is one of the existing techniques and which still has several problems, one ...
Photogrammetry: an accurate and reliable tool to detect thoracic musculoskeletal abnormalities in preterm infants
(Elsevier B.V., 2012-09-01)
Objective To analyse the accuracy and reproducibility of photogrammetry in detecting thoracic abnormalities in infants born prematurely.Design Cross-sectional study.Setting the Premature Clinic at the Federal University ...
Automatic extraction of road seeds from high-resolution aerial images
(2005-09-01)
This article presents an automatic methodology for extraction of road seeds from high-resolution aerial images. The method is based on a set of four road objects and another set of connection rules among road objects. Each ...
Extração semi-automática de rodovias em um par de imagens aéreas digitais utilizando geometria epipolar e programação dinâmica
(2006-01-01)
The purpose of this paper is to introduce a methodology for semi-automatic road extraction from aerial digital image pairs by using dynamic programming and epipolar geometry. The method uses both images from where each ...
Técnica autorradiográfica para investigação geológica - Estudo de caso na área do projeto rio preto
(2005-12-01)
The auto-radiography is a photographic method to registrate in sensitive emulsion the spatial distribution a rays emitted by radioisotopes of a sample or an object. The auto-radiography was applied to detect the presence ...
A recursive approach to space resection using straight lines
(1996-01-01)
An approach using straight lines as features to solve the photogrammetric space resection problem is presented. An explicit mathematical model relating straight lines, in both object and image space, is used. Based on this ...
A low-cost 3D reconstruction system using a single-shot projection of a pattern matrix
(Wiley-Blackwell, 2011-03-01)
The purpose of this work is to present the main features of a structured light system and some experimental results. The system, named SingleShot3DSL, is based on a single off-the-shelf digital camera and a pattern projector. ...