Exploració per autor "Marqués Acosta, Fernando"
Ara es mostren els items 46-65 de 100
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Improving retrieval accuracy of Hierarchical Cellular Trees for generic metric spaces
Ventura Royo, Carles; Vilaplana Besler, Verónica; Giró Nieto, Xavier; Marqués Acosta, Fernando (2013-09)
Article
Accés restringit per política de l'editorialAbstract Metric Access Methods (MAMs) are indexing techniques which al- low working in generic metric spaces. Therefore, MAMs are specially useful for Content-Based Image Retrieval systems based on features which use ... -
Interpolation and extrapolation of image partitions using Fourier descriptors: application to segmentation-based coding schemes
Marqués Acosta, Fernando; Llorens, Bernat; Gasull Llampallas, Antoni (. S.N., 1995)
Text en actes de congrés
Accés obertThis paper presents an interpolation/extrapolation technique for sequence partitions. It consists of four steps: region parametrization, region interpolation, region ordering and partition creation. The evolution of each ... -
Matehematic morphology approach for renal biopsy analysis
Marqués Acosta, Fernando; Cuberas, Gemma; Gasull Llampallas, Antoni; Seron, Daniel; Moreso, Francesc; Joshi, Nayana (Institute of Electrical and Electronics Engineers (IEEE), 2004)
Text en actes de congrés
Accés restringit per política de l'editorialThis paper proposes a new technique for the analysis of renal biopsies stained with Sirius red and digitized under non-polarized light. The renal interstitial space, the cortex area and the tubules should be segmented to ... -
Materials transversals per a l'aprenentatge actiu de les matèries de processat d'imatge i vídeo
Morros Rubió, Josep Ramon; Vilaplana Besler, Verónica; Ruiz Hidalgo, Javier; Casas Pla, Josep Ramon; Gasull Llampallas, Antoni; Marqués Acosta, Fernando; Pardàs Feliu, Montse; Salembier Clairon, Philippe Jean (2014)
Text en actes de congrés
Accés obertAquest treball vol promoure la col·laboració i coordinació entre assignatures de processat d'imatge/vídeo amb l’objectiu de potenciar els resultats en l'aprenentatge. Les principals contribucions son a) la creació d’un ... -
Measures and meta-measures for the supervised evaluation of image segmentation
Pont Tuset, Jordi; Marqués Acosta, Fernando (IEEE Computer Society Publications, 2013)
Text en actes de congrés
Accés obertThis paper tackles the supervised evaluation of image segmentation algorithms. First, it surveys and structures the measures used to compare the segmentation results with a ground truth database, and proposes a new measure: ... -
La Millor Metodologia Docent
Marqués Acosta, Fernando (Universitat Politècnica de Catalunya. Institut de Ciències de l'Educació, 2013-06)
Altres
Accés obertEn aquesta xerrada defensaré la que jo considero que és la millor metodologia docent i com es pot aplicar. Intentaré argumentar els diferents punts amb exemples personals o propers per tal de poder donar referències clares ... -
Morphological detection based on size and contrast criteria. Application to cells detection
Salembier Clairon, Philippe Jean; Gasull Llampallas, Antoni; Marqués Acosta, Fernando; Sayrol Clols, Elisa (. IEEE, 1992)
Text en actes de congrés
Accés obertThis paper deals with a detection algorithm relying on size and contrast criteria. It is suitable for a large range of applications where a priori information about the size and the contrast of the objects to detect is ... -
MPEG-4 : una nueva representación de la información audio-visual
Casas Pla, Josep Ramon; Marqués Acosta, Fernando; Salembier Clairon, Philippe Jean (Escola Tècnica Superior d'Enginyers de Telecomunicació de Barcelona, 1996)
Article
Accés obert -
Multiresolution co-clustering for uncalibrated multiview segmentation
Ventura, Carles; Varas, David; Vilaplana Besler, Verónica; Giró Nieto, Xavier; Marqués Acosta, Fernando (2019-05-04)
Article
Accés obertWe propose a technique for coherently co-clustering uncalibrated views of a scene with a contour-based representation. Our work extends the previous framework, an iterative algorithm for segmenting sequences with small ... -
Multiresolution hierarchy co-clustering for semantic segmentation in sequences with small variations
Varas González, David; Alfaro Vendrell, Mónica; Marqués Acosta, Fernando (Institute of Electrical and Electronics Engineers (IEEE), 2015)
Text en actes de congrés
Accés restringit per política de l'editorialThis paper presents a co-clustering technique that, given a collection of images and their hierarchies, clusters nodes from these hierarchies to obtain a coherent multiresolution representation of the image collection. We ... -
Multiresolution image segmentation based on camporend random fields: Application to image coding
Marqués Acosta, Fernando (Universitat Politècnica de Catalunya, 1992-11-22)
Tesi
Accés obertLa segmentación de imágenes es una técnica que tiene como finalidad dividir una imagen en un conjunto de regiones, asignando a cada objeto en la escena una o varias regiones. Para obtener una segmentación correcta, cada ... -
Multiscale combinatorial grouping
Arbelaez, Pablo Andres; Pont Tuset, Jordi; Barron, Jonathan; Marqués Acosta, Fernando; Malik, Jitendra (Institute of Electrical and Electronics Engineers (IEEE), 2014)
Text en actes de congrés
Accés obertWe propose a unified approach for bottom-up hierarchical image segmentation and object candidate generation for recognition, called Multiscale Combinatorial Grouping (MCG). For this purpose, we first develop a fast normalized ... -
Multiscale combinatorial grouping for image segmentation and object proposal generation
Pont Tuset, Jordi; Arbelaez, Pablo Andrés; Barron, Jonathan; Marqués Acosta, Fernando; Malik, Jitendra (2017-01-01)
Article
Accés obertWe propose a unified approach for bottom-up hierarchical image segmentation and object proposal generation for recognition, called Multiscale Combinatorial Grouping (MCG). For this purpose, we first develop a fast normalized ... -
Multiview depth coding based on combined color/depth segmentation
Ruiz Hidalgo, Javier; Morros Rubió, Josep Ramon; Aflaki, Payman; Calderero Patino, Felipe; Marqués Acosta, Fernando (2012-01)
Article
Accés restringit per política de l'editorialIn this paper, a new coding method for multiview depth video is presented. Considering the smooth structure and sharp edges of depth maps, a segmentation based approach is proposed. This allows further preserving the depth ... -
Object detection and segmentation on a hierarchical region-based image representation
Vilaplana Besler, Verónica; Marqués Acosta, Fernando; León Cristóbal, Míriam; Gasull Llampallas, Antoni (2010)
Comunicació de congrés
Accés obertIn this paper we present a general framework for object detection and segmentation. Using a bottom-up unsupervised merging algorithm, a region-based hierarchy that represents the image at different resolution levels is ... -
Object retrieval with deep convolutional features
Mohedano, Eva; Salvador Aguilera, Amaia; McGuinness, Kevin; Giró Nieto, Xavier; O'Connor, Noel; Marqués Acosta, Fernando (IOS Press, 2017-11-23)
Capítol de llibre
Accés restringit per política de l'editorialDeep learning and image processing are two areas of great interest to academics and industry professionals alike. The areas of application of these two disciplines range widely, encompassing fields such as medicine, robotics, ... -
Object-based evaluation of hierarchical region-based representations based on information theory statistical measures
Calderero Patino, Felipe; Marqués Acosta, Fernando (IEEE Computer Society Publications, 2008)
Text en actes de congrés
Accés obertThis work presents an evaluation in terms of object representation of the hierarchical region-based representations created by a family of general statistical region merging algorithms. These merging techniques are based ... -
Obtencion de un esqueleto morfologico sin puntos redundantes
Marqués Acosta, Fernando; Gasull Llampallas, Antoni; Torres Urgell, Lluís (1991)
Text en actes de congrés
Accés obertSkeleton is a powerful method to describe binary images. Although there are different possibilities to define a skeleton, is very common to use morphological skeleton because it is easy and fast for implementation purposes. ... -
Partition coding using multi-grid chain code and motion compensation
Marqués Acosta, Fernando; Gasull Llampallas, Antoni (IEEE, 1996)
Text en actes de congrés
Accés obertIn this paper, a lossy partition coding technique is presented which leads to decoded partitions with unnoticeable losses. It uses a hexagonal grid for contour representation and it is based on the concept of multi-grid ... -
Partition tree for a segmentation-based video coding system
Pardàs Feliu, Montse; Salembier Clairon, Philippe Jean; Marqués Acosta, Fernando; Morros, R (Institute of Electrical and Electronics Engineers (IEEE), 1996)
Text en actes de congrés
Accés obertIn this paper we describe a very low bit rate video coding system that belongs to the class of object based coding systems. The system takes advantage of homogeneity in both gray level and motion, trying to use the most ...