169,847 research outputs found
Hierarchical image analysis using Radon Transform: an application to error concealment
No full textIn this contribution, we show how a hierarchical edge image analysis at macroblock, block and subblock levels allows identifying prominent directional image components. The analysis, performed in the Radon domain, selects the scale level at which the image features present a directional structure that can be better reconstructed by a directional spatial interpolation. When the directional information is known at the decoder side it can drive the spatial error concealment. The experimental results, referring to the case of H.264 coded video, show the significant improvement of the decoded video visual quality achievable by the described technique. © 2005 IEEE
The Rear as an Unintentional Façade. The Farnesina ai Baullari in Rome
No full textThe design for Thomas Le Roy’s palace in Rome, although conditioned by the small, irregular site, was conceived as a C-shape plan around a square courtyard, in order to provide a sophisticated, celebrative route leading from the opaque, solid facade in Vicolo dell’Aquila to the loggia at the noble floor. When the building was still under construction, Paul III Farnese promoted urban works that caused the demolition of part of the insula the palace belonged to and exhibited its previously hidden rear on Via dei Baullari, turning it into the most visible part of the palace. From that moment onwards, both the works of the different owners and the graphical interpretations provided by artists from XVII to XIX century contributed to connote the verso as the new recto. While the original experience of the palace is being gradually lost, the rear is elected as an unintentional façade, conditioning the Farnesina’s role and development till the XX century
Imaging techniques in ALS
No full textAmyotrophic Lateral Sclerosis (ALS) is a progressive neurodegenerative disease characterized by degeneration of both upper and lower motor neuron located in the spinal cord and brainstem. Diagnosis of ALS is predominantly clinical, nevertheless, electromyography and Magnetic Resonance Imaging (MRI) may provide support. Several advanced MRI techniques have been proven useful for ALS diagnosis and, indeed, the combination of different MRI techniques demonstrated an improvement in sensitivity and specificity as far as 90%. This review focus on the imaging techniques currently used in the diagnosis and management of ALS with brief considerations on future applications
L’Objet Trouvé come modello tra approcci analogici e digitali
No full text[EN] This article frames and discusses the use of found-objects as scale models or part of them in the architecture design and communication. While this age of digital technologies and semiautomatic production techniques has affected most of the traditional workflow and tools of architectural design process, the use of foundobjects in model-making is still practiced, revealed and promoted by contemporary architects and teachers. The historical roots and critical function of this practice in the artistic vanguards is here briefly presented before discussing their potential roles in relationship with the digital tools currently permeating the design process. Three different categories of found-objects modeling are finally identified and discussed, in relationship with the semantic and operative opportunities they offer to architectural representation.[IT] Sebbene questa stagione di tecnologie digitali e tecniche di produzione semiautomatica ha condizionato la maggior parte della tradizionale catena di montaggio e gli strumenti del processo di progettazione e rappresentazione, l'uso di found-objects nella modellistica è ancora praticato, rivelato e promosso da architetti e docenti contemporanei. Questo potrebbe essere interpretato come il sintomo di una sorta di resistenza analogica o un modo per introdurre incidenti pianificati e incertezza in un processo di progettazione deterministico e omologante, ma lo scenario è sfaccettato. Questo contributo discute l'uso di found-objects come modelli nella progettazione dell'architettura e nella pratica della comunicazione. In particolare, descrive le loro radici storiche e la loro funzione critica nella ricerca delle avanguardie artistiche, classifica il loro ruolo nelle diverse fasi del processo di progettazione tradizionale e contemporaneo e si concentra su interazioni e differenze degli approcci analogici e digitali, in relazione alle opportunità semantiche della rappresentazione architettonica.Colonnese, F. (2020). Mapping the Objet Trouvée as a model, between analogical and digital approaches. EGA Expresión Gráfica Arquitectónica. 25(40):156-167. https://doi.org/10.4995/ega.2020.12934OJS1561672540- Buchloh, B., 1985. Readymade, Objet Trouvée, Idée Reçue. In: Dissent: The issue of Modern Art in Boston. Boston: Institute of Contemporary Art, pp. 106-22. Carpo, M., 2001. Architecture in the Age of Printing. Cambridge, MA: The MIT Press. Dal Co, F. (ed.), 2010. M9: a new Museum for a New City. Bergamo: Mondadori.- Ford, C., 2012. The Found Object in Design. Forward: The Design Journal of AIA NAC, no. 112, pp. 38-51. Gay, F., 2004. Tra forma e figura. Venezia: Cafoscarina.- Hertzberger , H., 1959. Untitled. Forum voor Architectuur en Daarmee Verbonden Kunsten, no. 14, 8, pp. 271-277.- Isenberg, B., 2009. Conversations with Frank Gehry. New York: Knopf Doubleday Publishing.- Le Corbusier, 1957. Entretiens avec les étudaints des écoled d'Architecture. Paris: Minuit.- Mindrup, M., 2014. Kurt Schwitters' architectural models. Kurt Schwitter Society Journal, no. 4, pp. 23-38.- OMA, 2004. Prada-sponge. https://oma.eu/projects/prada-sponge (September 2013).- Politakis , C., 2017. Architectural Colossi and the Human Body. London: Routledge. https://doi.org/10.4324/9781315512938- Robbins, D., 1990. The Independent Group: Postwar Britain and The Aesthetics of Plenty. Cambridge, MA: The MIT Press.- Samonà, G. (ed.), 1974. Frülicht (1902-22). Milano, Mazzotta.- Supermodels, 2014. A+U, no. 522.- Ungers, O.M., 1976. Designing and Thinking in Images, Metaphors and Analogies. In: Hans Hollein (ed.), MANtransFORMS: An International Exhibition on Aspects of Design. New York: Smithsonian Institution, pp. 98-113.- Weston, R., 2002. Utzon: Inspiration, Vision, Architecture. Hellerup: Bløndal.- Yagou, A., 2013. Modernist complexity on a small scale: The Dandanah glass building blocks of 1920 from an object-based research perspective. Deutsches Museum Preprint, no. 6, pp. 5-62.- Yaneva , A., 2009. Made by the Office for Metropolitan Architecture: An Ethnography of Design. Rotterdam, 010 Publishers.- McKnight, J., 2015. Sou Fujimoto creates installation from potato chips and ping-pong balls. Dezeen, 23 October 2015. https://www.dezeen.com/2015/10/23/sou-fujimoto-architecture-is-everywhere- installation-chicago-biennial-2015-household-items
The Critical Agency of Full-Size Models, from Michelangelo and Bernini to the Picturesque Garden
No full textThis article maps and investigates the practice of 1:1 modeling between the sixteenth and eighteenth centuries to demonstrate its critical agency in emphasizing vision over proportional and mathematical tools of composition, in promoting innovative and interdisciplinary approaches, and in encouraging a general circulation of ideas, techniques, and forms between architecture, sculpture, and garden design. Generally applied to solve exceptional cruxes, full-size models were mostly developed by artists like Michelangelo Buonarroti and Giovan Lorenzo Bernini, who were both sculptors and architects and who helped create a specific operative tradition later also adopted in parallel fields, such as the picturesque garden design endorsed by the marquis de Girardin. While clients and public require denotative detailed mock-ups, rough full-size models can provide their creators with both visual control of the design development on-site, sometimes promoting a “direct forming” approach to architectural design, and heuristic explorations that may lead them to unpredictable solutions
Blind equalization for correlated input symbols: a Bussgang approach
No full textThis paper addresses the problem of blind equalization in the case of correlated input symbols, and it shows how the knowledge of the symbol sequence probability distribution can be directly incorporated in a Bussgang blind equalization scheme. Numerical results pertaining to both linear and nonlinear modulation schemes show that a significant improvement in equalization performance is obtained by exploiting the symbol sequence probability distribution using the approach herein described
- …
