El GPI fa recerca en Processament d'Imatge i Vídeo per representació, codificació, indexació i anàlisi del contingut visual. L'expertesa del grup en Morfologia i segmentació ha estat la base de contribucions als estàndards ISO MPEG-4 i MPEG-7. La recerca en anàlisi d'imatge l'ha permès participar en projectes europeus des de 1992 als programes RACE (Morpheco, coord.), ACTS (MAVT, MoMuSys, Vidas), IST (Diceman, Hypermedia, INTERFACE, ADViSOR, MASCOT, FAETHON), xarxes d'excel·lència (SCHEMA, SIMILAR, MUSCLE), i projectes integrats FP6 (CHIL) i FP7 (FASCINATE).

http://futur.upc.edu/GPI

El Grupo de Procesado de Imagen y Vídeo investiga técnicas de tratamiento de imagen y vídeo en los campos de compresión, análisis, indexación, representación e interfaces multimodales. El Grupo se ha especializado en herramientas básicas de filtrado no lineal y morfología matemática, segmentación, seguimiento de objetos, detección y reconocimiento de caras, análisis de emociones y modelitzación de la actividad humana, que han sido la base de aplicaciones de codificación basada en el contenido, representación de vídeo mediante índices y tablas de contenido, y contribuciones a estándares internacionales como MPEG4 y MPEG7. El Grupo también desarrolla aplicaciones biomédicas, de teledetección y marcado.

http://futur.upc.edu/GPI

The research of the Image and Video Processing Group focuses on the areas of compression, analysis, indexing, representation and multimodal interfaces. The group specialises in basic tools for nonlinear filtering, mathematical morphology, segmentation, object tracking, face detection and recognition, emotion analysis and modelling of human activity, which have been the basis of applications related to content-based video coding, video indexing and the creation of tables of content and contributions to international standardisation processes such as MPEG-4 and MPEG-7. The group also develops biomedical, remote-sensing and watermarking applications.

http://futur.upc.edu/GPI

The research of the Image and Video Processing Group focuses on the areas of compression, analysis, indexing, representation and multimodal interfaces. The group specialises in basic tools for nonlinear filtering, mathematical morphology, segmentation, object tracking, face detection and recognition, emotion analysis and modelling of human activity, which have been the basis of applications related to content-based video coding, video indexing and the creation of tables of content and contributions to international standardisation processes such as MPEG-4 and MPEG-7. The group also develops biomedical, remote-sensing and watermarking applications.

http://futur.upc.edu/GPI

Enviaments recents

  • Strong edge features for image coding 

    Casas Pla, Josep Ramon; Torres Urgell, Lluís (P. MARAGOS, R.W. SCHAFER KLUWER ACADEMIA PUBLISHERS, 1996)
    Text en actes de congrés
    Accés obert
    A two-component model is proposed for perceptual image coding. For the first component of the model, the watershed operator is used to detect strong edge features. Then, an efficient morphological interpolation algorithm ...
  • Partition coding using multi-grid chain code and motion compensation 

    Marqués Acosta, Fernando; Gasull Llampallas, Antoni (?, 1996)
    Text en actes de congrés
    Accés obert
    In 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 ...
  • A segmentation-based coding system allowing manipulation of objects (sesame) 

    Marqués Acosta, Fernando; Salembier Clairon, Philippe Jean; Pardàs Feliu, Montse; Marcotegui Iturmendi, Beatriz (?, 1996)
    Text en actes de congrés
    Accés obert
    We present a coding scheme that achieves, for each image in the sequence, the best segmentation in terms of rate-distortion theory. It is obtained from a set of initial regions and a set of available coding techniques. The ...
  • 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 obert
    In 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 ...
  • Segmentation-based video coding:temporals links 

    Salembier Clairon, Philippe Jean; Marqués Acosta, Fernando; Pardàs Feliu, Montse (1996)
    Text en actes de congrés
    Accés obert
    This paper analyzes the main elements that a segmentation-based video coding approach should be based on so that it can address coding efficiency and content-based functionalities. Such elements can be defined as temporal ...
  • Prediction error image coding using a modified stochastic vector quantization scheme 

    Torres Urgell, Lluís; Casas Pla, Josep Ramon (IEEE IEEE, 1996)
    Text en actes de congrés
    Accés obert
    The objective of this paper is to provide an efficient and yet simple method to encode the prediction error image of video sequences, based on a stochastic vector quantization (SVQ) approach that has been modified to cope ...
  • Morphological operators for very low bit rate video coding 

    Salembier Clairon, Philippe Jean; Meyer, F; Brigger, P; Bouchard, L (IEEE IEEE, 1996)
    Text en actes de congrés
    Accés obert
    This paper deals with the use of some morphological tools for video coding at very low bit rates. Rather than describing a complete coding algorithm, the purpose of this paper is to focus on morphological connected operators ...
  • From pixels to sentiment: fine-tuning CNNs for visual sentiment prediction 

    Campos Camunez, Victor; Jou, Brendan; Giró Nieto, Xavier (2017-02-05)
    Article
    Accés restringit per política de l'editorial
    Visual multimedia have become an inseparable part of our digital social lives, and they often capture moments tied with deep affections. Automated visual sentiment analysis tools can provide a means of extracting the rich ...
  • An efficient technique of texture representation in segmentation-based image coding schemes 

    Torres Urgell, Lluís; Casas Pla, Josep Ramon; Campins, J (IEEE IEEE, 1995)
    Text en actes de congrés
    Accés obert
    In segmentation-based image coding techniques the image to be compressed is first segmented. Then, the information is coded describing the shape and the interior of the regions. A new method to encode the texture obtained ...
  • 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 obert
    This 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 ...

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