A Novel Framework for Highlight Reflectance Transformation Imaging

We propose a novel pipeline and related software tools for processing the multi-light image collections (MLICs) acquired in different application contexts to obtain shape and appearance information of captured surfaces, as well as to derive compact relightable representations of them. Our pipeline extends the popular Highlight Reflectance Transformation Imaging (H-RTI) framework, which is widely used in the Cultural Heritage domain. We support, in particular, perspective camera modeling, per-pixel interpolated light direction estimation, as well as light normalization correcting vignetting and uneven non-directional illumination. Furthermore, we propose two novel easy-to-use software tools to simplify all processing steps. The tools, in addition to support easy processing and encoding of pixel data, implement a variety of visualizations, as well as multiple reflectance-model-fitting options. Experimental tests on synthetic and real-world MLICs demonstrate the usefulness of the novel algorithmic framework and the potential benefits of the proposed tools for end-user applications.Terms: "European Union (EU)" & "Horizon 2020" / Action: H2020-EU.3.6.3. - Reflective societies - cultural heritage and European identity / Acronym: Scan4Reco / Grant number: 665091DSURF project (PRIN 2015) funded by the Italian Ministry of University and ResearchSardinian Regional Authorities under projects VIGEC and Vis&VideoLa

La sperimentazione dello strumento valutativo ACEI-IGA nelle scuole dell’infanzia comunali di Parma: un percorso di ricerca-formazione

Il percorso di formazione-ricerca qui presentato si colloca all’interno di un progetto più ampio di adattamento e sperimentazionedel Global Guidelines Assessment tool (GGA) sviluppato dall’Association for Childhood Education International (ACEI). Gliitem di tale strumento (nella versione italiana denominato IGA - Indicazioni Globali per l’Autovalutazione) prevedono valutazionisia quantitative (scale ordinali) sia qualitative (esempi/commenti). Il progetto ha coinvolto 32 insegnanti delle scuole dell’infanzia comunali di Parma, le quali hanno utilizzato l’ACEI-IGA per valutare una sezione della propria scuola. I dati raccolti hanno fornito sia informazioni utili alla riflessione delle insegnanti sulla propria attività professionale, sia feedback riguardanti i contenuti e le modalità di somministrazione dello strumento, utili tanto alle insegnanti quanto al gruppo di ricerca

A Coarse-grained model for diffusion in zeolites based on clustering of short MD trajectories

Zeolites form a class of microporous aluminosilicates of great interest due to their multifarious applications in industry and everyday life. Their porous structure allows small molecules to be adsorbed and to diffuse inside crystals, and depending on the zeolite type and on the diffusant species a variety of behaviours is possible. Molecular Dynamics is now widely used in order to understand the microscopic mechanisms of adsorption and diffusion occurring within these materials as well as in MOFs and ZIFs. A major drawback of MD for this kind of systems is its high computational cost, so that coarse-grained methods, speeding up simulations without losing the essential features of dynamics, are valuable tools for exploring the behaviour of guest molecules on time and space scales hardly, if at all, reachable with ordinary MD. The first step in our proposed method is the clustering of MD trajectories to obtain a discretized version of the motion of adsorbed molecules within the zeolite. Each pore in the aluminosilicate is partitioned in a number of regions and each point in the original trajectory is mapped to the proper region based on a distance criterion. The regions correspond roughly to the main basins in the potential energy surface (PES)

Lo spazio che fa la differenza: l'esperienza dei bambini, oltre la soglia

Il contributo affronta il tema del rapporto tra bambini e ambiente urbano analizzando i disegni del percorso casa-scuola raccolti durante un progetto di educazione civica realizzato in una scuola primaria di Reggio Emilia. L’analisi dei dati ha permesso di esplorare alcuni aspetti metodologici sull’utilizzo del disegno come strumento di ricerca e messo in evidenza un rapporto critico dei bambini con il loro ambiente di vita, che si configura come fortemente influenzato dal tema della mobilità. Gli elementi emersi sono coerenti con la letteratura che fa riferimento al campo di studi sia dell’educazione all’aperto (Farné, Bortolotti, Terrusi, 2018), che di quelli di matrice fenomenologica (Amadini, 2012), che evidenziano un progressivo impoverimento della qualità educativa dell’ambiente urbano

La valutazione della qualità dei servizi rivolti all’educazione e alla cura della prima infanzia: uno studio sull’attendibilità dello strumento valutativo ACEI-IGA

The current study is part of an international research on the psychometric properties of Global Guidelines Assessment tool developed by the Association of Childhood Education International (Italian version named “IGA – Indicazioni Globali per l’Autovalutazione”). Participants were 23 teachers and 9 pedagogical coordinators from kindergartens run by the Municipality of Parma (Italy). The results show strong internal consistency for the IGA as well as moderate interrater consistency.Lo studio qui presentato, realizzato con 23 insegnanti e 9 coordinatori pedagogici delle scuole dell’infanzia comunali di Parma, si colloca all’interno di una ricerca internazionale volta ad indagare le proprietà psicometriche del Global Guidelines Assessment tool sviluppato dall’Association for Childhood Education International (versione italiana denominato Indicazioni Globali per l’Autovalutazione – IGA). Le analisi dei dati mostrano da un lato una buona consistenza interna dell’IGA dall’altro una basso grado di accordo tra valutatori

Building the Web of Things with WS-BPEL and Visual Tags. Web of Things using Service-oriented Architecture standards

The Web of things is an emerging scenario in which everyday objects are connected to the Internet and can answer to HTTP queries with structured data. This paper presents a system that allows users to build networks of everyday objects using visual tags as proximity technology. The system backend is based on Service-oriented Architecture languages and tools for the runtime composition of “things” establishing connections we call hyperpipes.357-36

Itv as a community-to-community collaborative system

Web-forums and Instant Messengers provide a unique opportunity for the users to create and support spontaneous communities. However, such systems tend to focus on the one-to-one and one-to-many approaches. Community-to- Community interaction, described as two groups of people which communicate by means of a network, is still missing. This work describes early implementation of an interactive television (iTV) chat system, which dynamically creates chat rooms where users can discuss, share their TV experience and access web resources.337-33