Articles de revista
Enviaments recents
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JPEG privacy and security framework for social networking and GLAM services
(2017-09-29)
Article
Accés obertCurrent image coding standards provide limited support for privacy and security features. An exception is the JPSEC standard, which defines security extensions in JPEG 2000 specifications (part 8). Notwithstanding this ... -
Protecting privacy of genomic information
(2017-04-28)
Article
Accés obertThe ISO/IEC committee in charge of standardizing the well-known MPEG audiovisual standards has launched, in cooperation with the ISO committee on Biotechnology, a new activity for efficient compressed storage and transmission ... -
Privacy provision in eHealth using external services
(2015-05-01)
Article
Accés obertPrivacy provision is a key issue for successful secure access to patients’ health information. Current approaches do not always provide patients with the ability to define suitable rules to access to their information in ... -
Security and privacy in a DACS
(2016-01-01)
Article
Accés obertThe management of electronic health records (EHR), in general, and clinical documents, in particular, is becoming a key issue in the daily work of Healthcare Organizations (HO). The need for providing secure and private ... -
Un modelo para diseñar actividades de aprendizaje en la enseñanza de ingenierías
(Red Estatal de Docencia Universitaria, 2016-11-01)
Article
Accés obertEn los actuales momentos nuestros estudiantes se encuentran bastante desmotivados a la hora de asistir a clase y de trabajar. Esto conduce a que sea necesario que el profesor introduzca cambios en sus clases que lo lleven ... -
Criterios para practicas de evaluación de calidad
(2012-07-31)
Article
Accés obertEl grupo de innovación GRAPA ( GRupo de la Evaluación de la Práctica Académica ) d el proyecto RIMA de la Universitat Politècnica de Catalunya ha elaborado una serie de criterios , en forma de rúbrica, como buenas prácticas ... -
Efficient coding of homogeneous textures using stochastic vector quantization and linear prediction
(1999-06)
Article
Accés obertVector quantisation (VQ) has been extensively used as an effective image coding technique. One of the most important steps in the whole process is the design of the codebook. The codebook is generally designed using the ... -
Analysis and synthesis of textures through the inference of Boolean functions
(1997-05)
Article
Accés restringit per política de l'editorialThis work deals with Boolean functions of non-linear and linear basis. The Boolean random functions of non-linear basis were proposed by Serra (1988,1989). These functions are generated through a Poisson point process upon ... -
A region-based subband coding scheme
(1997-07)
Article
Accés restringit per política de l'editorialThis paper describes a region-based subband coding scheme intended for efficient representation of the visual information contained in image regions of arbitrary shape. QMF filters are separately applied inside each region ... -
Stochastic vector quantization of images
(1997-11)
Article
Accés restringit per política de l'editorialOne of the most important steps in the vector quantization of images is the design of the codebook. The codebook is generally designed using the LBG algorithm, that is in essence a clustering algorithm which uses a large ... -
Region-based video coding using mathematical morphology
(1995-06)
Article
Accés obertThis paper presents a region-based coding algorithm for video sequences. The coding approach involves a time-recursive segmentation relying on the pixels homogeneity, a region-based motion estimation, and motion compensated ... -
An improvement on codebook search for vector quantization
(1994-02)
Article
Accés obertPresents a simple but effective algorithm to speed up the codebook search in a vector quantization scheme when a MSE criterion is used. A considerable reduction in the number of operations is achieved. This algorithm was ...