Search results for "Zoom"
showing 10 items of 28 documents
IL TERRITORIO NELL’ARCHITETTURA. Grande scala e agricoltura nell’architettura italiana, 1966-1978.
2020
Nel quadro composito di superamento del Moderno, il rinnovamento dell'architettura italiana si lega al Territorio a partire dagli anni Sessanta. Vittorio Gregotti, Aldo Rossi, Superstudio, Archizoom, Studio 9999, ne animano i due distinti filoni principali, includendo fra le matrici del procedimento progettuale la storia urbana, la geografia umana, la fotografia aerea dei territori, con riferimento sia ai segni antropici arcaici che all’agricoltura e a tecniche moderne per la trasformazione produttiva dei luoghi. L'articolo rievoca i temi e i progetti principali di tale quadro, con l'obiettivo di mostrare che la flessibilità di estensione di buona parte dell’orientamento disciplinare contem…
Advanced energetics of a Multiple Effects Evaporation (MEE) desalination plant Part I: 2nd principle analysis by a zooming representation at single-e…
2010
This paper represents the Part I of a paper in two parts, aimed at proposing a 2nd principle and thermoeconomic analysis for a Multiple Effects Evaporation (MEE) process and discussing solutions for optimization and energy saving. After a brief analysis of the thermochemical fundamentals of desalination, the minimum theoretical work of separation is introduced to represent a reference condition for the assessment of plants' efficiency. A forward feed MEE configuration is then analysed, abandoning the conventional approach to “at overall plant-level”-analysis; a zooming strategy, based on focusing on the physical model of a generic stage (i.e. effect), is preferred to best recognize the marg…
Pedestrian Tracking in 360 Video by Virtual PTZ Cameras
2018
Since the data acquired by a PTZ camera change while adjusting the pan, tilt and zoom parameters, the results of tracking algorithms are difficult to reproduce; such diffi- culty limits the development and the comparison of tracking algorithms with PTZ cameras. The recently introduced 360- degree cameras acquire spherical views of the environment, generally stored as equirectangular images. Each pixel of an equirectangular image corresponds to a point on the spherical surface. A gnomonic projection can be used to project the points on the spherical surface onto a plane tangent to the sphere. Such tangent plane can be interpreted as the image plane of a virtual PTZ camera oriented towards th…
Elicitation and evaluation of zoom gestures for touchless interaction with desktop displays
2019
Touchless gestural interaction has been widely studied and adopted in many contexts. Furthermore, the growing availability of low-cost enabling devices, such as Kinect or Leap Motion, boosted up the interest in such interaction both for commercial and scientific purposes, both for large public displays and for personal displays. The problem of choosing the right touchless gesture for the right action is thus still an open issue, depending on several aspects, such as context, purpose, users' culture, etc. In this work, we first present the results of a gesture elicitation study that allowed us to identify a set of touchless gestures for performing zoom actions while interacting with desktop …
Automatic concept maps generation in support of educational processes
2014
A VLE is a system where three main actors can be devised: the teacher in the role of instructional designer, the tutor, and the stu- dent. Instructional designers need easy interaction for specifying the course domain structure to the system, and for controlling how well the learning materials agree to such a structure. Tutors need tools for having a holistic perception of the evolution of single students and/or groups in the VLE during the learning process. Finally, students need self regulation in terms of controlling their learning rate, reflect on their learning strategies, and comparing with other people in the class. In this work we claim that sharing an implicit representation of the…
Zoologia, musica, linguaggio
2017
A partire dagli anni Ottanta del secolo scorso si è andato sviluppando un nuovo settore della musicologia orientato a indagare sotto un profilo estetico i sistemi sonori impiegati a vario scopo da molte specie animali: la cosiddetta zoomusicologia. L’opzione di fondo che caratterizza questo nuovo orientamento di studi consiste nell’ipotizzare una “universale” base biologica dei comportamenti sonori e cinestetici che accomuna le specie viventi e che i Sapiens sapiens hanno specificamente sviluppato ponendola a fondamento di miti e pratiche variamente funzionali nell’ambito del lavoro, del gioco, della ritualità e della comunicazione paralinguistica in genere. In questo contributo si offre un…
Super Resolution Methods Implementing Diffractive Masks Having a Certain Degree of Periodicity
2011
This section presents an approach that provides super resolved imaging at the center of the field of view and yet allows to see the remaining of the original field of view with original resolution. This operation resembles optical zooming while the zoomed and the nonzoomed images are obtained simultaneously. This is obtained by taking a single snap-shot and using a single imaging lens. The technique utilizes a special static/still coding element and a postprocessing algorithmic, without any mechanical movements.
A new method for linear affine self-calibration of stationary zooming stereo cameras
2012
This paper presents a simple, yet effective, method to recover the affine structure of a scene from a (stereo) pair of stationary zooming cameras. The proposed method solely relies on point correspondences across images and no knowledge about the scene whatsoever is required. Our method exploits implicit properties of the projective camera matrices of zooming cameras and allows to estimate the affine structure of a scene by solving a linear system of equations. The 3D reconstruction results obtained by using our method, on both real and simulated data, have remarkably validated its feasibility.
Particle Filtering for Tracking in 360 Degrees Videos Using Virtual PTZ Cameras
2019
360 degrees cameras are devices able to record spherical images of the environment. Such images can be used to generate views of the scene by projecting the spherical surface onto planes tangent to the sphere. Each of these views can be considered as the output of a virtual PTZ (vPTZ) camera with specific pan, tilt and zoom parameters. This paper proposes to formulate the visual tracking problem as the one of selecting, at each time, the vPTZ camera to foveate on the target from the unlimited set of simultaneously generated vPTZ camera views. Assuming that the selected vPTZ camera is a stochastic variable, the paper proposes to model the posterior distribution of the underlying stochastic p…
Semiotics
2019
The field of musical semiotics has developed since the 1970s, and it consists of a wide range of approaches and analyses into different genres of music and dance (e.g., art, popular, ethnic, folk), even extending into that sphere of animal life called zoomusicology. In general, the term semiotics refers to the study of meaning making and of sign process. The background of semiotics can be traced back to the first half of 20th century, with reference to the development of theoretical linguistics and the consequent application of linguistic models to other fields of expression and communication. The term semiotic was introduced by the American logician and philosopher Charles Sanders Peirce a…