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The currently used assessment techniques for measuring neurological deficits are time consuming and may lack of sensibility and repeatability. Previous studies suggested that the cinematic analysis of the movement, might represent a reliable alternative instrument for documenting the degree of motor impairment. To verify this hypothesis we investigated(More)
This paper presents the EPFL proposal to MPEG-4 video coding standardization activity 1]. The proposed technique is based on a novel approach to audiovisual data compression entitled dynamic coding. The newly born multimedia environment supports a plethora of applications which can not be covered adequately by a single compression technique. Dynamic coding(More)
In this paper, benchmarking results of watermarking techniques are presented. The benchmark includes evaluation of the watermark robustness and the subjective visual image quality. Four different algorithms are compared, and exhaustively tested. One goal of these tests is to evaluate the feasibility of a Common Functional Model (CFM) developed in the(More)
In this paper, we present an overview of the dynamic coding approach, together with recent developments carried out in this framework. Dynamic coding is a general approach to the problem of visual data representation in the context of multimedia. This approach consists in a dynamic combination of multiple representation models and segmentation strategies.(More)
Structural plasticity of G-protein coupled receptors (GPCRs) is of basic importance for their interactions with ligands, in particular with other proteins such as receptors or receptor-modifying proteins that can lead to different functions for the same GPCR. In the present paper, structural plasticity of GPCRs has been investigated discussing allosteric(More)
MPEG-4 aims at providing standardized core technologies allowing efficient storage, transmission and manipulation of video data in multimedia environments. In order to achieve this broad goal, rather than a solution for a narrow set of applications, functionalities common to clusters of applications are under consideration. The encoded representation, along(More)
In this paper a hypothesis that some special signals ("key-signals" excito-amino acids, beta-amyloid peptides and alpha-synuclein) are not only involved in information handling by the neuronal circuits, but also trigger out substantial structural and/or functional changes in the Central Nervous System (CNS) is introduced. This forces the neuronal circuits(More)