accuracy of cultural heritage 3d models by rpas and terrestrial photogrammetry

The combined use of high-resolution digital images taken from ground as well as from RPAS (Remotely Piloted Aircraft Systems) have significantly increased the potential of close range digital photogrammetry applications in Cultural Heritage surveying and modeling. It is in fact possible, thanks to SfM (Structure from Motion), to simultaneously process great numbers of aerial and terrestrial images for the production of a dense point cloud of an object. In order to analyze the accuracy of results, we started numerous tests based on the comparison between 3D digital models of a monumental complex realized by the integration of aerial and terrestrial photogrammetry and an accurate TLS (Terrestrial Laser Scanner) reference model of the same object. A lot of digital images of a renaissance castle, assumed as test site, have been taken both by ground level and by RPAS at different distances and flight altitudes and with different flight patterns. As first step of the experimentation, the images were previously processed with Agisoft PhotoScan, one of the most popular photogrammetric software. The comparison between the photogrammetric DSM of the monument and a TLS reference one was carried out by evaluating the average deviation between the points belonging to the two entities, both globally and locally, on individual façades and architectural elements (sections and particular). In this paper the results of the first test are presented. A good agreement between photogrammetric and TLS digital models of the castle is pointed out

VSCAN: An Enhanced Video Summarization using Density-based Spatial Clustering

In this paper, we present VSCAN, a novel approach for generating static video summaries. This approach is based on a modified DBSCAN clustering algorithm to summarize the video content utilizing both color and texture features of the video frames. The paper also introduces an enhanced evaluation method that depends on color and texture features. Video Summaries generated by VSCAN are compared with summaries generated by other approaches found in the literature and those created by users. Experimental results indicate that the video summaries generated by VSCAN have a higher quality than those generated by other approaches.Comment: arXiv admin note: substantial text overlap with arXiv:1401.3590 by other authors without attributio

Características agronômicas dos acessos do Banco Ativo de Germoplasma de Uva.

Este trabalho teve por objetivo caracterizar agronomicamente 19 acessos do Banco Ativo de Germoplasma de Uva (BAGUva), por um período compreendido entre sete e 11 anos. Os materiais são cultivados a campo, em condições padronizadas, sob porta-enxerto '101-14?, com sistema de sustentação em espaldeira e poda em Guyot. Foram avaliadas características relacionadas ao cacho, à baga, à produtividade e à incidência das principais doenças da videira no país

Caracterização da qualidade do mosto de acessos do Banco Ativo de Germoplasma de Uva.

O objetivo deste trabalho foi avaliar a qualidade do mosto, com relação ao pH, conteúdo de sólidos solúveis totais (SS) e acidez total titulável (ATT) de 19 acessos do Banco Ativo de Germoplasma de Uva

Análise fenológica de acessos mantidos pelo Banco Ativo de Germoplasma de Uva.

O objetivo deste trabalho foi avaliar o ciclo fenológico de 19 acessos mantidos no Banco Ativo de Germoplasma de Uva

Características agronômicas dos acessos do Banco Ativo de Germoplasma de Uva da Embrapa Uva e Vinho.

A caracterização de acessos de uva mantidos em coleção é uma etapa importante, que contribui para o melhoramento genético. Este trabalho teve como objetivo caracterizar agronomicamente 43 acessos do Banco Ativo de Germoplasma de Uva (BAG-Uva), mantido pela Embrapa Uva e Vinho, localizada em Bento Gonçalves-RS

Avaliação físico-química de acessos do Banco Ativo de Germoplasma de Uva (BAG-Uva).

O objetivo deste trabalho é caracterizar 43 acessos do BAG-Uva, com relação à qualidade do mosto [pH, Sólidos Solúveis Totais (SS) e Acidez Total Titulável (ATT)], por um período que variou entre sete e 10 anos. Trinta e oito acessos também foram avaliados com relação ao Índice de Polifenóis Totais (IPT) e conteúdo de antocianinas (ANT), por um período que variou de dois e três anos

Fenologia de acessos mantidos pelo Banco Ativo de Germoplasma de Uva (BAG-Uva).

Cultivares de videira com ciclos produtivos diferenciados são importantes para a viticultura praticada em clima tropical e temperado. O objetivo deste trabalho foi avaliar o ciclo fenológico de 43 acessos mantidos no BAG-Uva. Os acessos foram avaliados em condições padronizadas no campo por um período que variou entre 7 e 10 anos em clima temperado (29º09?S, 51º31'W, 680m de altitude)

Behavior of dairy heifers after increasing the amounts of milk replacer powder added to whole milk.

Abstract The objective of this work was to evaluate the effects of increasing the contents of total solids (TS) in whole milk, by adding increasing amounts of milk replacer powder, on the behavior of dairy heifers. Holstein-Gyr crossbred heifers (n = 60) were distributed in four treatments: 13.5, 16.1, 18.2, and 20.4% TS. From 5 to 55 days of age, heifers received 6 L per day of liquid feed, which was reduced by half from 56 to 59 days. Heifers were weaned at 60 days of age and monitored until 90 days, and their behavior was evaluated weekly. During gradual weaning and after weaning, heifer behavior was recorded 1 hour before and 1 hour after liquid feed was offered, and, during weaning, it was evaluated by the scan method. Heifers fed liquid feed containing 20.4% TS present a higher number of play behaviors, spent less time standing, and spent more time ruminating than those that received liquid feed with 13.5% TS, indicating that a higher nutritional plan during weaning is an effective strategy to reduce stress in this period

A fast ILP-based Heuristic for the robust design of Body Wireless Sensor Networks

We consider the problem of optimally designing a body wireless sensor network, while taking into account the uncertainty of data generation of biosensors. Since the related min-max robustness Integer Linear Programming (ILP) problem can be difficult to solve even for state-of-the-art commercial optimization solvers, we propose an original heuristic for its solution. The heuristic combines deterministic and probabilistic variable fixing strategies, guided by the information coming from strengthened linear relaxations of the ILP robust model, and includes a very large neighborhood search for reparation and improvement of generated solutions, formulated as an ILP problem solved exactly. Computational tests on realistic instances show that our heuristic finds solutions of much higher quality than a state-of-the-art solver and than an effective benchmark heuristic.Comment: This is the authors' final version of the paper published in G. Squillero and K. Sim (Eds.): EvoApplications 2017, Part I, LNCS 10199, pp. 1-17, 2017. DOI: 10.1007/978-3-319-55849-3\_16. The final publication is available at Springer via http://dx.doi.org/10.1007/978-3-319-55849-3_1