Three Dimensional Tracking
Mostrando 1-12 de 27 artigos, teses e dissertações.
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1. Chronic Obstructive Pulmonary Disease: The Role of Myocardial Deformation Indices and Right Ventricle Three-Dimensional Echocardiography
Abstract Background: Right ventricular dysfunction is a major complication in chronic obstructive pulmonary disease (COPD) and, despite its prognostic implications, is rarely considered in routine clinical analysis. Objectives: To compare RV function variables with standard and advanced echocardiographic techniques in patients with stable COPD and controls
International Journal of Cardiovascular Sciences. Publicado em: 2022
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2. Evaluation of Left Ventricular Systolic Function in Patients with Coronary Microvascular Dysfunction by Three-Dimensional Speckle-Tracking Imaging
Abstract Introduction: The objective of this study is to evaluate the left ventricular systolic function of patients with coronary microvascular dysfunction (CMD) using the three-dimensional speckle-tracking imaging (3D-STI) technique. Methods: From June 2018 to June 2019,72 subjects from Huzhou Central Hospital were enrolled, including 42 CMD in-patients
Brazilian Journal of Cardiovascular Surgery. Publicado em: 2022
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3. The Use of Two-Dimensional Strain Measured by Speckle Tracking in the Identification of Incipient Ventricular Dysfunction in HIV-Infected Patients on Antiretroviral Therapy, Untreated HIV Patients and Healthy Controls
Resumo Fundamento: A maior parte das alterações cardiovasculares dos pacientes infectados pelo vírus da imunodeficiência humana (HIV) tem sido associada ao dano miocárdico causado diretamente pelo vírus. Alguns casos, porém, podem estar associados a efeitos adversos da terapia antirretroviral (TARV). Novas técnicas de avaliação da função ventric
Arq. Bras. Cardiol.. Publicado em: 02/09/2019
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4. 3-Dimensional Echocardiography and 2-D Strain Analysis of Left Ventricular, Left Atrial and Right Ventricular Function in Healthy Brazilian Volunteers
Resumo Fundamentos: Novas técnicas ecocardiográficas são utilizadas no diagnóstico e prognóstico de diversas cardiopatias. No entanto, muitos desses novos índices ainda carecem de valores de referência em diferentes populações. Estudamos esses novos parâmetros ecocardiográficos em um grupo de brasileiros sem doença cardiovascular conhecida. Obj
Arq. Bras. Cardiol.. Publicado em: 29/08/2019
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5. Path Planning for Unmanned Underwater Vehicle in 3D Space with Obstacles Using Spline-Imperialist Competitive Algorithm and Optimal Interval Type-2 Fuzzy Logic Controller
Abstract In this research, generation of a short and smooth path in three-dimensional space with obstacles for guiding an Unmanned Underwater Vehicle (UUV) without collision is investigated. This is done by utilizing spline technique, in which the spline control points positions are determined by Imperialist Competitive Algorithm (ICA) in three-dimensional s
Lat. Am. j. solids struct.. Publicado em: 2016-06
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6. Early assessment of percutaneous coronary interventions for chronic total occlusions analyzed by novel echocardiographic techniques
OBJECTIVE: Successful revascularization of chronic total occlusions has been associated with improved left ventricular systolic function, reduced anginal symptoms, increased exercise capacity, and increased survival. This study was conducted to determine the impact of revascularization in chronic total occlusion on left ventricular function using novel echo
Clinics. Publicado em: 2013-10
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7. Modelagem 3D para a determinação do comprimento de arcos elétricos usando imagens estereoscópicas = : 3D modeling for determination of lenght of electrical arcs using stereo images / 3D modeling for determination of lenght of electrical arcs using stereo images
O comprimento do arco elétrico é um parâmetro importante para a modelagem matem ática do arco elétrico. O perfil da variação do comprimento do arco atualmente é estimado pela análise da tensão medida entre os terminais do arco e da corrente do arco. Porém esses resultados não são conclusivos, pois não apresentam uma medição (escala métrica)
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/07/2012
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8. Reconhecimento de texto e rastreamento de objetos 2D/3D / Text recognition and 2D/3D object tracking
In this thesis we address three computer vision problems: (1) the detection and recognition of flat text objects in images of real scenes; (2) the tracking of such text objects in a digital video; and (3) the tracking an arbitrary three-dimensional rigid object with known markings in a digital video. For each problem we developed innovative algorithms, which
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 19/03/2012
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9. APLICAÇÃO DO MÉTODO DAS DIFERENÇAS FINITAS NO DOMÍNIO DO TEMPO NA ANÁLISE DE COBERTURA EM AMBIENTES INTERIORES / APPLICATION OF FINITE DIFFERENCE TIME DOMAIN IN THE ANALYSIS OF INDOOR COVERAGE
The growing interest in broadband wireless local networks and high trans- mission rates requires an increasingly reliable modeling of radio propagation channels, specially for indoor scenarios. The use of optical methods of elec- tromagnetic field tracking along (ray) trajectories between transmission and observation points, via high-frequency analysis of sc
Publicado em: 2008
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10. Validação da escala South Oaks Gambling Screen em população brasileira / Validity of the South Oaks Gambling Screen in brazilian population
Pathological gambling is considered a behavioral addiction that shares similarities with drug addiction. The South Oaks Gambling Screen - SOGS is the most employed screening tool for pathological gambling. The SOGS investigates gambling games and behaviors associated to gambling. Answering at least 5 from 20 questions classifies the respondent as a probable
Publicado em: 2006
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11. An engineering vector-like approach to attitude kinematics and nominal attitude state tracking control.
In dealing with rigid body three-dimensional rotational motion, one is inevitably led to face the fact that rotations are not vector quantities. They may, however, be treated as such when the angle of rotation is (very) small. In this context, i.e. the infinitesimal case analysis, the time derivatives of the rotation variables hold simple (sometimes vector-l
Publicado em: 2002
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12. SCENE TRACKING WITH AUTOMATIC CAMERA CALIBRATION / ACOMPANHAMENTO DE CENAS COM CALIBRAÇÃO AUTOMÁTICA DE CÂMERAS
In the television casting of sports events, it has become very common to insert synthetic elements to the images in real time, such as adds, marks on the field, etc. Usually, this insertion is made using special cameras, previously calibrated and provided with features that record their movements and parameter changes. With such information, inserting new ob
Publicado em: 2001