GRAPH CNN WITH RADIUS DISTANCE FOR SEMANTIC SEGMENTATION OF HISTORICAL BUILDINGS TLS POINT CLOUDS

Abstract. Point clouds obtained via Terrestrial Laser Scanning (TLS) surveys of historical buildings are generally transformed into semantically structured 3D models with manual and time-consuming workflows. The importance of automatizing this process is widely recognized within the research community. Recently, deep neural architectures have been applied for semantic segmentation of point clouds, but few studies have evaluated them in the Cultural Heritage domain, where complex shapes and mouldings make this task challenging. In this paper, we describe our experiments with the DGCNN architecture to semantically segment historical buildings point clouds, acquired with TLS. We propose a variation of the original approach where a radius distance based technique is used instead of K-Nearest Neighbors (KNN) to represent the neighborhood of points. We show that our approach provides better results by evaluating it on two real TLS point clouds, representing two Italian historical buildings: the Ducal Palace in Urbino and the Palazzo Ferretti in Ancona

Augmented reality experience: from high-resolution acquisition to real time augmented contents

This paper presents results of a research project "dUcale" that experiments ICT solutions for the museum of Palazzo Ducale (Urbino). In this project, the famed painting the "Città Ideale" becomes a case to exemplify a specific approach to the digital mediation of cultural heritage. An augmented reality (AR) mobile application, able to enhance the museum visit experience, is presented. The computing technologies involved in the project (websites, desktop and social applications, mobile software, and AR) constitute a persuasive environment for the artwork knowledge. The overall goal of our research is to provide to cultural institutions best practices efficiently on low budgets. Therefore, we present a low cost method for high-resolution acquisition of paintings; the image is used as a base in AR approach. The proposed methodology consists of an improved SIFT extractor for real time image. The other novelty of this work is the multipoint probabilistic layer. Experimental results demonstrated the robustness of the proposed approach with extensive use of the AR application in front of the "Città Ideale" painting. To prove the usability of the application and to ensure a good user experience, we also carried out several users tests in the real scenario

Spore-forming bacteria in soil cultivated with GM white poplars: isolation and characterization

The impact of transgenic white poplars (Populus alba L. cv. ‘Villafranca’) was assessed on the soil aerobic spore-forming bacteria (SFB). The genetically modified poplars, expressing either the StSy gene for resveratrol production or the bar gene for herbicide tolerance, were cultivated in greenhouse. The occurrence of SFB was monitored in soil samples collected at eight different timepoints over a two-year period. The total culturable bacterial population of the StSy and bar trials underwent significant seasonal fluctuations in the range of 106–2.5 × 108 CFU/g dry soil and of 104–5 × 108 CFU/g dry soil, respectively. Changes occurred also within the culturable SFB population with size varying at 103–5 × 104 CFU/g dry soil and 102–2 × 105 CFU/g dry soil in the StSy and bar trials, respectively. No significant differences in the size of the total and SFB culturable populations were observed when comparing each transgenic line with the nontransformed control line while seasonal shifts of soil bacterial populations were evident in both trials. The culturable SFB fraction included three isolates (SFB-1, SFB-2 and SFB-3) classified by 16S rDNA sequence analysis as members of the Bacillus genus. According to the reported data, cultivation of both herbicide- resistant and resveratrol-producing GM white poplars did not affect the culturable SFB population at the soil leve

Long-Term Clinical Consequences of Intense, Uninterrupted Endurance Training in Olympic Athletes

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A New Cloud Library for Integrated Surveys: The Ancient Via Flaminia and the Nextone Project

The chapter presents an innovative way to improve the archaeological landscape, based on researches about Via Flaminia. This is an extraordinary land that collects layered remarkable characteristics i.e. archaeological evidences, historical and natural landscape, ancient and modern infrastructures. Documenting this appreciable heritage is mandatory to use cutting edge technologies of survey, integrated 2management of data and innovative communication systems. The final purpose is the heritage preservation and its long life. Although previous deep researches and several scientific surveys were carried out, a major lack is their fragmentary non-reusable nature. The regional project “Cultural Evolved District” Flaminia Nextone discusses best practices in culturally based development of this area. The methods are survey and analysis of architectural and archaeological heritage, supported by information technologies. As results, the chapter shows a catalogue of buildings survey, their semantic/ontological organization in a Cloud library (2D/3D) and several outputs collected in exhibitions

Mobile e realtà aumentata al Palazzo Ducale di Urbino: il Museo è digitale

Un'App in realtà aumentata per la fruizione del celebre dipinto della Città Ideale di Palazzo Ducale a Urbino all'inyerno di un progetto, Ducale Digitale, per studiare e promuovere nuove forme di fruizione dell'opera d'arte

MOBILE E REALTÀ AUMENTATA AL PALAZZO DUCALE DI URBINO: IL MUSEO È DIGITALE.

<p>In this article we show an interesting approach of exploitation for Palazzo Ducale, the most important museum of Marche Region. The main objective of this project is to transform the museum into a sort of laboratory to experiment new technologies able to give a response to the administrations, who have less and less resources available to enhance their priceless heritage. We propose innovative solutions to create tools, instruments and opportunities for both insiders and common users. The production chain starts from cutting edge survey technology that gives strong data for the conservation; furthermore they are the starting point reach the broader public with augmented reality and mobile application.<strong></strong></p

Occurrence of multiple metal-resistance in bacterial isolates associated with transgenic white poplars (Populus alba L.)

The occurrence of multiple metal-resistance was assessed in two bacterial collections, named Herbicide Resistant Bacteria (HRB) and Nuclease-Producing Bacteria (NPB) respectively, consisting of 15 and 11 isolates obtained from a loamy sand cultivated with transgenic white poplars (Populus alba L., cv ‘Villafranca’) engineered for herbicide resistance. A third collection of 11 bacterial isolates, named Leaf-Associated Bacteria (LAB), obtained from the leaves of transgenic white poplars expressing the StSy gene for resveratrol production and from untransformed plants was evaluated. Resistance to Cd, Co, Cu, Pb and Zn was tested. As for the HRB collection, nine different phenotypes were monitored, which included tetra-, tri- and double-resistance. Tri- and double-metal resistance occurred also within the NPB and LAB collections. In both cases five different phenotypes were recovered. An additional investigation was carried out on the HRB-1c isolate, resistant to Cd, Co, Pb and Zn, which was previously demonstrated to produce indoleacetic acid, a plantgrowth- promoting trait. Colorimetric assays, performed on the cell-depleted medium of HRB-1c liquid cultures grown in presence of heavy metals, confirmed that this trait was not affected. A 19-kb plasmid, possibly involved in the maintenance of the multiple metalresistant phenotype, was detected in the HRB-1c cells

Improving the Development of AR Application for Artwork Collections with Standard Data Layer

Museums and art galleries are called to preserve and promote their collections. Mobile technologies like Augmented Reality would transform visitors from passive observers to protagonists, creating engaging and personal art experience for the audience. However, the hurdles preventing Augmented Reality from becoming a widespread medium to convey virtual information about the Cultural Heritage, lies in the limitations in adopting fast and agile tools of development. The paper presents an ongoing research, aimed at the creation of a framework to serialize the development of Augmented Reality application, based on a standard data layer. The core of the application is designed to augment artworks, while the standardization of data will permit a fast multi-app development. This framework is useful to bridge the gap between designers and developers, and will facilitate a semi-automatic development of Augmented Reality applications for Cultural Institutions