Listar por tema "Image processing"
Mostrando ítems 1-20 de 351
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3D pose estimation using convolutional neural networks
(Universitat Politècnica de Catalunya, 2015-10)
Projecte Final de Màster Oficial
Acceso abiertoThe present Master Thesis describes a new Pose Estimation method based on Convolutional Neural Networks (CNN). This method divides the three-dimensional space in several regions and, given an input image, returns the ... -
3D reconstruction and recognition of objects using a kinect camera
(Universitat Politècnica de Catalunya, 2016-09)
Trabajo final de grado
Acceso abierto
Realizado en/con: Technische Universität MünchenThis project is based on the recent advances of 3D depth cameras, one being the Microsoft Kinect sensors. Nowadays, this technology enables to create really accurate 3D figures and scenes simplifying difficult tasks in ... -
3D shape from multi-camera views by error projection minimization
(2010)
Texto en actas de congreso
Acceso abiertoTraditional shape from silhouette methods compute the 3D shape as the intersection of the back-projected silhouettes in the 3D space, the so called visual hull. However, silhouettes that have been obtained with background ... -
3D surface reconstruction in telepresence systems
(Universitat Politècnica de Catalunya, 2017-06)
Trabajo final de grado
Acceso abiertoRegistering three-dimensional models is possible thanks to the use of multi view captures or the readings provided by depth sensors, which can be applied in Augmented or Virtual Reality systems. In this sense, this project ... -
4D Cardiac MRI Segmentation and Surface Reconstruction
(Universitat Politècnica de Catalunya, 2008-10-10)
Proyecto/Trabajo final de carrera
Acceso abierto -
4D Cardiac Segmentation and Respiratory Motion Modeling of the Human Heart
(Universitat Politècnica de Catalunya, 2009-06)
Proyecto/Trabajo final de carrera
Acceso abiertoAtrial Fibrillation (AF) is a growing problem in modern societies with an enormous impact in both short term quality of life and long term survival. A recently developed promising approach to cure AF uses radiofrequency ... -
Accelerating super-resolution for 4K upscaling
(Institute of Electrical and Electronics Engineers (IEEE), 2015)
Texto en actas de congreso
Acceso restringido por política de la editorialThis paper presents a fast Super-Resolution (SR) algorithm based on a selective patch processing. Motivated by the observation that some regions of images are smooth and unfocused and can be properly upscaled with fast ... -
ACCHER Sistema de control de consumo de energías domésticas
(Universitat Politècnica de Catalunya, 2018-01)
Trabajo final de grado
Acceso restringido por decisión del autor
Realizado en/con: EverisThe name ACCHER comes from the abbreviations of the project's name (Automation of Consumption Control of Household Energy Resources). This project is carried out in collaboration with Everis (Company dedicated to consulting), ... -
Accurate video object tracking using a region-based particle filter
(Universitat Politècnica de Catalunya, 2017-02-06)
Projecte Final de Màster Oficial
Acceso abiertoUsually, in particle filters applied to video tracking, a simple geometrical shape, typically an ellipse, is used in order to bound the object being tracked. Although it is a good tracker, it tends to a bad object ... -
A compact 3D representation for multi-view video
(2011)
Texto en actas de congreso
Acceso restringido por política de la editorialThis paper presents a methodology for obtaining a 3D reconstruction of a dynamic scene in multi-camera settings. Our target is to derive a compact representation of the 3D scene which is effective and accurate, whatever ... -
A comparative study between Elliptic Fourier and B-spline descriptors for object contour representation
(2014)
Texto en actas de congreso
Acceso restringido por política de la editorialIn this work, a comparative study between Elliptic Fourier and B-spline descriptors is carried out for comparing their efficiency in characterizing the contour shape of image objects. In both cases, the goal is to obtain ... -
A comparison of contrast enhancement methods for 2D radiographic images: Applied to patient positioning in proton therapy
(Universitat Politècnica de Catalunya, 2015-05-08)
Proyecto/Trabajo final de carrera
Acceso abierto
Realizado en/con: Université Catholique de LouvainDifferent methods for radiographic image contrast enhancement are studied, implemented and compared. The efficiency of the techniques in improving image contrast is then evaluated both on a subjective evaluation from ... -
Action recognition using the Rf Transform on optical flow images
(SCITEPRESS, 2017)
Texto en actas de congreso
Acceso abiertoThe objective of this paper is the automatic recognition of human actions in video sequences. The use of spatio-temporal features for action recognition has become very popular in recent literature Instead of extracting ... -
Active mesh coding and rate-distortion theory
(Institute of Electrical and Electronics Engineers (IEEE), 1996)
Comunicación de congreso
Acceso abiertoThis paper presents a video coding scheme for very low bit rate applications. The coding approach relies on active meshes and can be viewed as a particular case of region-based coding. The active mesh is used to efficiently ... -
Adaptive Filter Solution For Processing Lidar Returns: Optical Parameter Estimation
(OPTICAL SOC AMER, 1998-01-31)
Artículo
Acceso abiertoJoint estimation of extinction and backscatter simulated profiles from elastic-backscatter lidar return signals is tackled by means of an extended Kalman filter (EKF). First, we introduced the issue from a theoretical point ... -
A digital image processing method for urban scenes brightness assessment
(Centre de Política del Sòl i Valoracions - Universitat Politècnica de Catalunya, 2016-10)
Artículo
Acceso abiertoThe appearance of the city is strongly linked to many aspects such as climate, culture and sociological background. In cities with a prevalence of clear skies, one of the determining aspects is the climatic condition, which ... -
A discrete labelling approach to attributed graph matching using SIFT features
(2010)
Texto en actas de congreso
Acceso abiertoLocal invariant feature extraction methods are widely used for image-features matching. There exist a number of approaches aimed at the refinement of the matches between image-features. It is a common strategy among these ... -
Algoritmos de reconstrucción de escenas 3D paralelizados en GPU para aplicaciones en tiempo real
(Universitat Politècnica de Catalunya, 2010-01-21)
Proyecto/Trabajo final de carrera
Acceso abiertoSe presenta una adaptación de algoritmos de reconstrucción 3D en escenarios multi-cámara a un entorno multiprocesador que permita aprovechar la capacidad de cálculo de los nuevos procesadores gráficos (GPUs), con el objetivo ... -
Allowing content-based functionalities in segmentation-based coding schemes
(1997-08)
Artículo
Acceso abiertoThis paper deals with the use of the segmentation tools and principles presented in [10] and [13] for allowing content-based functionalities. In this framework, means for supervised selection of objects in the scene are ... -
An adaptive pyramid image coding system
(Institute of Electrical and Electronics Engineers (IEEE), 1988)
Texto en actas de congreso
Acceso abiertoThe Laplacian Pyramid is a new and efficient method for image encoding. The method is of increasing interest as band-pass pyramids and multiresolution images are being used in other image processing applications. The Pyramid ...
