234 research outputs found
An adaptive probabilistic model for straight edge-extraction within a multilevel MRF framework
No full textStatistical approaches to ill-posed image processing problems such as restoration, segmentation and edge-detection have been proposed previously that were based on Markov random fields (MRFs). MRFs provide a regularization framework where a-priori knowledge expressed in a probabilistic way can be used together with available data for obtaining solutions characterized by a "good" global behaviour. A-priori knowledge and evidential knowledge can be used to specify constraints on the solution within a probabilistic functional. Observation models are necessary to capture evidential knowledge, i.e., the relations between the solution and data acquired either by a physical or a logical device. The present paper is based on a multilevel MRF approach introduced in Regazzoni (1994) and Regazzoni and Venetsanopoulos aiming at three different tasks: 1) to detect straight lines, 2) to restore the original image, and 3) to detect edge points. In particular, a new line detection approach is introduced, consisting in a progressive relaxation of the threshold used to establish the line presence in an appropriate parameter space. The method is applied to SAR remote sensing
A Distributed Extended Kalman Filtering network for estimation and tracking of multiple objects
No full textThe author presents a strategy for tracking areas occupied by many objects moving in a scene and monitored by means of image sequences. The proposed strategy can be used to solve the problems of crowding estimation and localisation of groups of people in underground stations
Out of the box: Kosellecks Figuren als Manifestationen von Denkspielräumen
No full textBrandt B. Out of the box: Kosellecks Figuren als Manifestationen von Denkspielräumen. In: Regazzoni L, ed. Im Zwischenraum der Dinge. Eine Annäherung an die Figurensammlung Reinhart Koselleck. Bielefeld: BiUP; 2023
Unità di senso della storia nell'orizzonte contemporaneo
No full textMaj B, Regazzoni L, eds. Unità di senso della storia nell'orizzonte contemporaneo. Discipline Filosofiche. 2000;X(1)
Dieses clair-obskure Objekt der Begierde
No full textRegazzoni L. Dieses clair-obskure Objekt der Begierde. In: Förster B, ed. Dantes Verse. Göttingen: Wallstein Verlag; 2021: 211–213
Il problema della penale «irrisoria» nella prospettiva delle clausole di esonero da responsabilità
No full textIl commento esamina criticamente gli orientamenti in merito al sindacato giudiziale sulle clausole penali di ammontare «irrisorio», individuandone il fondamento (anche in esito ad un confronto con l’ordinamento francese) in un’applicazione diretta alla clausola penale dell’art. 1229 c.c., qualora l’importo pattuito risulti notevolmente inferiore all’entità del danno prevedibile. Si analizzano inoltre gli effetti che la previsione di nullità ex art. 1229 può sortire in questa fattispecie, con lo scopo di salvaguardare le utilità derivanti dalla penale in favore del creditore.The author critically examines the various theses about the judicial review of an «extremely modest» penalty clause. After a comparison with the French legal system, the author argues that such review is allowed by the direct application of Art. 1229 of the Civil Code to the penalty clause, where the agreed amount is significantly lower than the foreseeable damage. Furthermore, an analysis is drawn of the effects that the provision of nullity under Art. 1229 may have in such a case, with the aim of maintaining the benefits granted by the penalty to the creditor
"Maury B. Carbón Sierra. Seis notas sobre Alejo Carpentier, La Habana: Ediciones Extramuros, 2009, pp. 80"
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