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Journal articles on the topic 'Maquette 3D'
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Eusèbe, Sylvie. "La maquette numérique issue de levés 3D." Archeopages, no. 34 (July 1, 2012): 104–5. http://dx.doi.org/10.4000/archeopages.426.
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Georgiou, E., E. Karachaliou, and E. Stylianidis. "3D REPRESENTATION OF THE 19TH CENTURY BALKAN ARCHITECTURE USING SCALED MUSEUM-MAQUETTE AND PHOTOGRAMMETRY METHODS." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLII-2/W5 (August 18, 2017): 275–79. http://dx.doi.org/10.5194/isprs-archives-xlii-2-w5-275-2017.
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Characteristic example of the Balkan architecture of the 19th century, consists the "Tower house" which is found in the region of Epirus and Western Macedonia, Greece. Nowadays, the only information about these heritage buildings could be abstracted by the architectural designs on hand and the model – Tower that is being displayed in the Folklore Museum of the Municipality of Kozani, Greece, as a maquette. The current work generates a scaled 3D digital model of the "Tower house", by using photogrammetry techniques applied on the model-maquette that is being displayed in the Museum exhibits.
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Fregonese, L., N. Giordani, A. Adami, G. Bachinsky, L. Taffurelli, O. Rosignoli, and J. Helder. "PHYSICAL AND VIRTUAL RECONSTRUCTION FOR AN INTEGRATED ARCHAEOLOGICAL MODEL: 3D PRINT AND MAQUETTE." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLII-2/W15 (August 22, 2019): 481–87. http://dx.doi.org/10.5194/isprs-archives-xlii-2-w15-481-2019.
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<p><strong>Abstract.</strong> Museums perform various tasks such as collecting, cataloguing and preserving the cultural heritage (CH). In addition, they have an institutional task, which is to disseminate the heritage, discovering the most efficient tools to tell how a monument to the origin could have looked. In this process of knowledge and dissemination, digital technologies play an important role. In fact, they allow building a digital archive in which virtual copies of found objects are available to scholars for more or less in-depth analysis. Digital archives of this type also allow the dissemination of scientific data, constituting, if published, databases accessible everywhere. The role of the digital archive is also to preserve the characteristics of the finds, which are often already deteriorated, without worsening the situation through their continuous manipulation or movement. Of course, the construction of digital copies must be done in the most rigorous way so as to guarantee scholars the truthfulness of the data being analysed, and building procedures as standardized as possible to allow their use even by unskilled personnel. Moreover, museums have the very complex task of communicating the heritage, which envisages two steps: reconstruction and communication. The first phase, reconstruction, is a very complex operation, especially in the archaeological field, where there are few documents and the hypotheses are based on principles of similarity. Since no direct reference is available, the reconstruction takes place through comparison with similar objects from the same period, the same area and with the same function. Communication, then, has the task of disseminating the results and the hypotheses made, with the most appropriate tools. 3D printing allows to build three-dimensional models of reality, and therefore immediately comprehensible, even of complex forms, not always achievable with the traditional tools of modelling tools. This article describes this complex process, and its application to the funerary aediculae monument at the Museo Archeologico di Mantova, on the occasion of the refurbishment of the museum and its exhibits. In this experience, the use of new technologies is being investigated in combination with more traditional methods of representation, the maquette, but not less effective.</p>
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Guerra, Francesco, and Paolo Vernier. "Surveying and Comparing the Arco Dei Gavi and its Historical Wooden Maquette." Geoinformatics FCE CTU 6 (December 21, 2011): 338–45. http://dx.doi.org/10.14311/gi.6.42.
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Actually geometrics’ science offers new opportunities and interesting applications in the field of Cultural Heritage. These applications are strictly related to preservation, restoration but even to cataloging and reproducing a monument that no longer has its original integrity. The possibility of obtaining 3D data, of such a model close to reality, enables us to realize studies that sometimes are too complex or impossible. The paper will describe the study of a monumental arch, the Arco dei Gavi, built in Verona during the I sec. A.C., that was destroyed in 1805 by the Napoleonic army, and its wooden model that was realized in 1813 and it has a very important role concerning the monument’s reconstruction. The purpose is to realize two threedimensional models which can be comparable to each other, two models with recognizable differences, similarities and discontinuities about shapes and single elements that compose the monument. It should also be noted that some original parts of the monument have not been relocated but are badly preserved in a museum: the 3D digital model helps to identify these parts in their original location. The main steps of the work can be summarized in: collecting the historical documentation of Arco dei Gavi and its representations; identifying proper instruments (laser scanning and photogrammetric hardware and software); surveying the Arch and its wooden model; identifying a unique and shared reference system; comparing both digital models related to the same scale; choosing a three-dimensional representation to emphasize the results; reallocation of outstanding pieces (virtual anastylosis).
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Favre-Brun, Aurélie, and Livio De Luca. "De l'acquisition 3D à la réalité augmentée : le cas de l'église de la chartreuse pontificale de Villeneuve-lès-Avignon (Gard)." Revue Française de Photogrammétrie et de Télédétection, no. 196 (April 15, 2014): 52–58. http://dx.doi.org/10.52638/rfpt.2011.37.
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La chartreuse de Villeneuve-lès-Avignon (Gard), fondée au XIVème siècle par le pape Innocent VI, a subi de nombreux bouleversements tout au long de son existence, à l'image de son église. Construite en plusieurs temps, elle a atteint son apogée au XVIIIème siècle, avant d'être vendue puis divisée en lots et occupée par la population pauvre locale. Le XXème siècle marque sa renaissance à travers les expropriations et les restaurations. Elle est aujourd'hui un site touristique et un lieu de résidence pour artistes. Dans le cadre du programme 3D[Monuments] piloté par le Ministère de la Culture et de la Communication, l'église a été le théâtre de campagnes de relevés numériques et photographiques visant à reconstruire en 3D son état actuel. Une restitution hypothétique de son état postrévolutionnaire, basée sur les nombreuses et diverses sources documentaires, a également été proposée. Une base de données contenant la documentation liée aux objets 3D a été mise en place. L'élaboration de la maquette 3D a conduit l'équipe à s'interroger sur la fiabilité des informations transmises par les sources documentaires. La chartreuse a ainsi été choisie comme terrain d'expérimentation privilégié pour l'étude de l'incertitude des données documentaires réalisée dans le cadre d'une thèse de doctorat.
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Patrucco, G., F. Rinaudo, and A. Spreafico. "A NEW HANDHELD SCANNER FOR 3D SURVEY OF SMALL ARTIFACTS: THE STONEX F6." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLII-2/W15 (August 23, 2019): 895–901. http://dx.doi.org/10.5194/isprs-archives-xlii-2-w15-895-2019.
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<p><strong>Abstract.</strong> Movable heritage preserved in our museums are an invaluable evidence of our past. In order to properly respond to the need of 3D documentation of these significant assets, in the last few years both range-based and image-based solutions have been developed by researchers operating in the framework of Geomatics with a special focus on reaching a high level of detail and on texture radiometric quality, taking into consideration the intrinsic fragility of these kinds of objects which during the survey require a contactless approach. During the presented research a collection of architectural models representing ancient Nubian temples from “Museo Egizio di Torino” had been digitalized using different techniques; in particular, the wooden maquette of the temple of El-Hilla has been acquired using a new structured light handheld laser scanner, the Stonex F6 SR, and applying a close-range photogrammetric approach. In this paper a comparison between the two approaches is proposed as regards acquisition workflow, final results and suitability as regards digitisation of objects belonging to movable heritage and museum collections.</p>
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Frizziero, Leonardo, Gian Maria Santi, Giampiero Donnici, Christian Leon-Cardenas, Patrich Ferretti, Alfredo Liverani, and Marco Neri. "An Innovative Ford Sedan with Enhanced Stylistic Design Engineering (SDE) via Augmented Reality and Additive Manufacturing." Designs 5, no. 3 (July 27, 2021): 46. http://dx.doi.org/10.3390/designs5030046.
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The design of an E segment, executive, midsize sedan car was chosen to fill a gap in the market of the Ford brand and to achieve the goal of innovation looking towards the future. Ford has not owned an E-segment flagship sports sedan for years, since the historic 1960s Falcon. Starting from the latter assumption and considering that the major car manufacturers are currently investing heavily in E-segment cars, it is important to design a new model, which has been called the Eagle. This model proposed here is to fill the gap between Ford and other companies that are already producing sport cars for the electric sector and to complete Ford’s proposal. The presented methodology is based on SDE, on which many design tools are implemented, such as Quality Function Deployment (QFD), Benchmarking (BM), and Top Flop Analysis (TPA). A market analysis follows in order to identify the major competitors and their key characteristics considering style and technology. The results are used to design an innovative car. Based on the most developed stylistic trends, the vehicle is first sketched and then drawn in the 2D and 3D environments for prototyping. This result leads to the possibility of 3D printing the actual model as a maquette using the Fused Deposition Modelling (FDM) technology and testing it in different configurations in Augmented Reality (AR). These two final applications unveil the possibilities of Industry 4.0 as enrichment for SDE and in general rapid prototyping.
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Price, Christine. "Decolonising a landscape architecture studio: Spatial modelling of student narratives." Multimodality & Society 1, no. 1 (March 2021): 39–47. http://dx.doi.org/10.1177/2634979521992737.
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This paper problematises the dominance of global north perspectives in landscape architectural education, in South Africa where there are urgent calls to decolonise education and make visible indigenous and vernacular meaning-making practices. In grappling with these concerns, this research finds resonance with a multimodal social semiotic approach that acknowledges the interest, agency and resourcefulness of students as meaning-makers in both accessing and challenging dominant educational discourses. This research involves a case study of a design project in a first-year landscape architectural studio. The project requires students to choose a narrative and to represent it as a spatial model: a scaled, 3D maquette of a spatial experience that could be installed in a public park. This practitioner reflection closely analyses the spatial model of one student, Malibongwe, focusing on his interest in meaning-making; the innovative meaning-making practices and diverse resources he draws on; and his expression of spatial signifiers of the Black experiences portrayed in his narrative. This reflection shows how Malibongwe’s narrative is not only reproduced in the spatial model, it is remade: the transformation of resources into three-dimensional spatial form results in new understandings and the production of new meanings.
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Donnici, Giampiero, Leonardo Frizziero, Alfredo Liverani, Giulio Buscaroli, Luna Raimondo, Eleonora Saponaro, and Giorgia Venditti. "A New Car Concept Developed with Stylistic Design Engineering (SDE)." Inventions 5, no. 3 (July 6, 2020): 30. http://dx.doi.org/10.3390/inventions5030030.
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In this work, a structured design method, the Stylistic Design Engineering (SDE), is applied for the construction of a new minivan car, in particular a new city car, which we will call FIAT 600 Omega. The SDE, or Stylistic Design Engineering, is a structured engineering method for carrying out automotive design projects. The SDE method consists of six different phases: (1) Analysis of stylistic trends; (2) Sketches; (3) 2D Computer Aided Design (CAD) drawings; (4) 3D CAD models; (5) Rendering; (6) Solid stylistic model (also called style maquette). This project deals with the external redesign of the Fiat 600 multiple, a small minivan which was very successful in the 1950s and 1960s. SDE is a methodology consisting of various technologies and design methodologies that will be further explained in detail, such as the Pininfarina method, the Quality Function Deployment (QFD) method, Benchmarking (BM), and Top Flop Analysis (TPA). The work was organized according to the different phases. Initially, the Fiat style was studied, in particular the style of the FIAT 600 MULTI PURPOUSE VEHICLE (MPV). This step is essential to better understand the characteristics of the brand and also the main characteristics carried out over the decades. Then we moved on to the freehand sketching phase, based on what we learned in the previous phase of the study. When a satisfactory shape was found for the new car, by analyzing and discarding the different proposals of the various types of style, we proceeded to the evaluation of the proportions and dimensions through two-dimensional drawings and finally we obtained the three-dimensional shape of the new car thanks to 3D CAD software and rendering software. Many advantages in the industrial world SDE takes together with its development. In fact, until the early 2000s, car design and styling was considered quite a craft activity, not a technical or scientific one, mostly based on the great capability of famous car designers and masters, just like Giugiaro, Zagato, Bertone, Pininfarina, Stephenson, Bangle, etc. Then, thanks to the industrial activity of Eng. Lorenzo Ramacciotti, former CEO of Pininfarina Spa and Mechanical Engineer, and also thanks to the academic studies developed at ALMA MATER STUDIORUM University of Bologna, SDE became the object of attention, because it is able to systematize the car design process and reduce costs. With SDE, a good design research or an industrial product development team can complete a car design project, also without the presence of a mentor. Car Design Process finally becomes with SDE a scientific method; Car Design becomes with SDE an industrial method. Industrial needs are nice products made in a short time; SDE is structured to attend these issues. Industrial challenges follow innovation, in shape and functionality; SDE is able to recognize innovation. Industrial benefits can be reached with SDE, ensuring beautiful aesthetic projects are realized systematically and with low costs.
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GONÇALVES, H. A. F., G. M. SOUSA, and D. LIMA. "Construction of Topographic Models for the Teaching of Cartography and Geomorphology Through 3D Printing." Anuário do Instituto de Geociências - UFRJ 42, no. 3 (September 30, 2019): 202–6. http://dx.doi.org/10.11137/2019_3_202_206.
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Domínguez, I. A., L. Romero, M. M. Espinosa, and M. Domínguez. "Impresión 3D de maquetas y prototipos en arquitectura y construcción." Revista de la construcción 12, no. 2 (November 2013): 39–53. http://dx.doi.org/10.4067/s0718-915x2013000200004.
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Rakocevic, Miroslava, Murilo Hilário Mazza da Silva, Eduardo Delgado Assad, and Guilherme Augusto Silva Megeto. "Reconstrução de maquetes 3D e manipulação da arquitetura de espécies perenes cultivadas no Brasil." Pesquisa Agropecuária Brasileira 43, no. 9 (September 2008): 1241–45. http://dx.doi.org/10.1590/s0100-204x2008000900019.
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Este trabalho teve como objetivo indicar algumas possíveis manipulações ecofisiológicas, com base em experimentos de arquitetura de plantas. Plantas de erva-mate, seringueira e videira foram caracterizadas no campo e no laboratório, e suas maquetes 3D foram reconstruídas com os programas V-Plants e PlantGLViewer. Indicações sobre a análise de crescimento e impactos ambientais, com a aplicação de diversas simulações, foram discutidas.
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Hernández Sánchez, Adriana, Christian Enrique De la Torre Sánchez, Jesús Manuel Mejía Sánchez, and Luis Gerardo Córdova Moreno. "Maquetas hápticas en 3D para niños con discapacidad visual. Un acercamiento a la ciudad histórica." Bitácora Urbano Territorial 30, no. 2 (May 4, 2020): 47–60. http://dx.doi.org/10.15446/bitacora.v30n2.81771.
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La línea de investigación Espacio Público, Participación Ciudadana y Centro Histórico de la Facultad de Arquitectura de la Benemérita Universidad Autónoma de Puebla (FABUAP) ha realizado proyectos de accesibilidad e inclusión social en los ámbitos urbano y arquitectónico, partiendo del reconocimiento de la diversidad y el fomento de la participación ciudadana. En este artículo se presenta la experiencia de elaboración, evaluación e impresión de dos maquetas hápticas impresas en tecnología digital 3D, las cuales tenían dos propósitos: promover la accesibilidad al patrimonio urbano y arquitectónico del centro histórico de la ciudad de Puebla, México, entre niños con ceguera y debilidad visual y servir en la enseñanza de la movilidad autónoma de los menores.
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Corrêa, Alessandro de Castro, Arildomá Lobato Peixoto, and Danielle Cristina Gonzaga Corrêa. "MÉTODOS MULTI-ATRIBUTOS: APLICAÇÃO DO COPRAS NA SELEÇÃO DE FILAMENTOS PARA PRODUÇÃO DE MAQUETE EM IMPRESSORA 3D." BOLETIM DO MUSEU DE GEOCIÊNCIAS DA AMAZÔNIA 5 (2018), no. 1 (April 1, 2018): 1–9. http://dx.doi.org/10.31419/issn.2594-942x.v52018i1a11acc.
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Prado, Sixto, Mark Peralta, Diego Maravi, and Mariano Iparraguirre. "Diseño e Implementación de una Impresora 3D Core XY multifuncional." REVISTA TECNOLOGÍA & DESARROLLO 16, no. 1 (November 19, 2018): 78–85. http://dx.doi.org/10.18050/td.v16i1.1960.
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En este trabajo se presenta el diseño, simulación e implementación de una impresora 3D de geometrÃa Core XY con capacidad de impresión aditiva y de láser, en el marco de una estrategia de desarrollo tecnológico con base cientÃfica enfocada en la región La Libertad-Perú. Como uno de los propósitos más importantes de este proyecto es obtener una metodologÃa, protocolo y el saber cómo (know-how) desarrollar este tipo de dispositivos tecnológicos con las mejores prestaciones técnicas del mercado.
Una caracterÃstica común en la formación de diversas profesiones como IngenierÃas, medicina, odontologÃa, arquitectura, artes, etc., es el uso de prototipos y maquetas para facilitar el entendimiento, análisis y sÃntesis de diversos conocimientos, asà como el uso de estas como herramientas para validar diferentes trabajos de investigación o innovación tecnológica. En general, los prototipos y maquetas están formados por diversas piezas que los estudiantes fabrican y ensamblan en muchos casos de forma manual o con instrumentos que no les aseguran la exactitud requerida, robustez, estabilidad y elegancia del prototipo final. Lo que puede generar casos donde el diseño y modelamiento matemático de un trabajo académico esta adecuadamente fundamentado sin embargo su validación experimental es pobre debido a las incertidumbres constructivas del producto final del trabajo. En ingenierÃa, el prototipado y uso de maquetas es inherente a la propia carrera y su fabricación y ensamblaje eficiente permite una mejor comprensión y entendimiento de la diversidad de conocimientos que se integran para obtener un producto determinado, en caso contrario, es decir el uso de prototipos deficientes (partes mal ensambladas, exceso de fricción, juegos entre partes, excesivas vibraciones, etc…) puede afectar la motivación del estudiante y generar desconfianza en los conocimientos teóricos impartidos dado que el prototipo no trabaja según lo que se espera de la teorÃa.
Una propuesta de solución para lo descrito previamente, es la fabricación de piezas a partir de un archivo 3D mediante la sucesiva deposición de capas de material hasta obtener la pieza deseada. En el mercado existen diversos modelos de Impresoras 3D de bajo coste que permiten obtener piezas con geometrÃa simple sin embargo también presentan continuos defectos en su funcionamiento cuando se quiere aumentar la complejidad de la geometrÃa de la pieza a obtener y eso se debe a las limitaciones estructurales mecánicas, la simplicidad de los componentes de accionamiento, de sensorica y de control electrónico de dichos equipos. Intervenir en este tipo de equipos sin tener un adecuado know-how de cómo fueron diseñados y construidos puede ser contraproducente puesto que no se garantiza ninguna mejora en el producto, al contrario, podrÃa generarse daños irreversibles a los equipos por la falta de conocimiento sobre ellos.
En este trabajo se presenta el desarrollo e implementación de una impresora 3D altamente versátil, flexible de fácil instalación, que ocupe poco espacio, estable en su funcionamiento y en especial de tecnologÃa abierta, es decir con hardware y software con código libre a fin de que permita a los estudiantes modificar y mejorar sus prestaciones futuras. Primero se definen los criterios de diseño y propiedades técnicas deseadas de la impresora, lo que permite seleccionar a la geometrÃa Core XY como la más indicada para alcanzarlas. Segundo se valida el diseño mediante simulación, tercero se implementa la impresora 3D multifuncional según resultados de la simulación y finalmente se muestran diferentes objetos impresos.
Palabras Claves: Fabricación aditiva, Impresora 3D, Automatización, CORE-XY.
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Melían Díaz, Dámari, Carlos Carbonell Carrera, José Luis Saorín Pérez, Jorge De la Torre Cantero, and Norena Martín Dorta. "Fabricación digital de maquetas para la mejora de la interpretación cartográfica y el fomento de la competencia creativa = Digital manufacturing of 3D DTM models to enhance cartographic interpretation & creative competence." Advances in Building Education 1, no. 1 (April 30, 2017): 11. http://dx.doi.org/10.20868/abe.2017.1.3506.
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ResumenEn educación superior, para las titulaciones de ingeniería y arquitectura es precisa la adquisición y desarrollo de competencias como la creatividad y la visión espacial. La competencia espacial se puede desarrollar mediante la realización de ejercicios y la creatividad mejora, si el diseño de los ejercicios permite múltiples soluciones. La comprensión del relieve topográfico es necesaria para la integración de proyectos de arquitectura e ingeniería en el entorno. Sin embargo, en la formación universitaria se han detectado carencias para la interpretación de las formas del relieve. Las maquetas de terreno, pueden ayudar a suplir esta carencia. La aparición de tecnologías de fabricación digital de bajo coste permiten la creación de maquetas de terreno y su incorporación en la docencia reglada. En este artículo se presentan los resultados de dos experiencias. En la primera, llevada a cabo durante el curso 2015-16 con 33 alumnos universitarios, se realizan maquetas topográficas utilizando secciones apiladas, con el objetivo de mejorar la interpretación tridimensional de las formas del terreno. La segunda parte de la experiencia, llevada a cabo durante el curso 2016-17 se realiza con alumnos de Máster. Se trata de una validación preliminar, con pocos alumnos, en la que se pretende incorporar aspectos creativos a la realización de maquetas de terrenos. Para medir la variación de la competencia creativa en los alumnos se utiliza el Test de Abreacción de la Creatividad (TAEC), antes y después de la experiencia.AbstractIn higher education, engineering and architecture degrees require the acquisition and development of skills such as creativity and spatial ability. Space competence can be developed by performing exercises and the creativity improves, if the design of the exercises allows multiple solutions. The understanding of topographic relief is necessary for the integration of architectural and engineering projects in the environment. However, in the university context deficiencies have been detected for the interpretation of the relief forms. Land models can help to fill this gap. The emergence of low cost digital manufacturing technologies allows the creation of terrain models and their incorporation for teaching. This article presents the results of two experiences. In the first one, carried out during the 2015-16 academic year with 33 university students, topographic models are made using stacked sections, with the aim of improving the three-dimensional interpretation of the terrain forms. The second part of the experience, performed during the 2016-17 course is carried out with Master's students. This is a preliminary validation, with few students, which seeks to incorporate creative aspects to the realization of land models. To measure the variation of creative competence in students, the Creativity Abreaction Test (TAEC) is used, before and after the experience.
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Torres Londoño, Natalia, and Hugo Alkmim de Matos. "ESTRUCTURAS DESPLEGABLES: SISTEMAS TIPO TIJERA." Cadernos de Arquitetura e Urbanismo 24, no. 35 (June 6, 2018): 16–69. http://dx.doi.org/10.5752/p.2316-1752.2017v24n35p16.
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Taller sobre estructuras desplegables impartido en la PUC Minas en la ciudad de Belo Horizonte. Liderado por el grupo de investigación SMiA bajo la coordinación de los miembros Hugo Alkmim de Matos y Natalia Torres y con la colaboración del LEFAD (Laboratorio de Fabricación Digital). El objetivo principal es la enseñanza de nuevas estrategias de proyecto presentando el sistema tipo tijera como una alternativa de diseño modular, ligero y transformable. La metodología se basa en el armado de maquetas que incorporan la tecnología de la impresión 3d en sistemas de conexiones, creando nuevas herramientas didácticas para entender este tipo de estructuras. El taller finaliza con la construcción de un pabellón en madera, donde el estudiante se enfrenta al cambio de escala y a los procesos reales de fabricación y montaje de una estructura desplegable.
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Patrucco, Giacomo, and Francesco Setragno. "Multiclass semantic segmentation for digitisation of movable heritage using deep learning techniques." Virtual Archaeology Review 12, no. 25 (July 14, 2021): 85. http://dx.doi.org/10.4995/var.2021.15329.
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<p class="VARAbstract">Digitisation processes of movable heritage are becoming increasingly popular to document the artworks stored in our museums. A growing number of strategies for the three-dimensional (3D) acquisition and modelling of these invaluable assets have been developed in the last few years. Their objective is to efficiently respond to this documentation need and contribute to deepening the knowledge of the masterpieces investigated constantly by researchers operating in many fieldworks. Nowadays, one of the most effective solutions is represented by the development of image-based techniques, usually connected to a Structure-from-Motion (SfM) photogrammetric approach. However, while images acquisition is relatively rapid, the processes connected to data processing are very time-consuming and require the operator’s substantial manual involvement. Developing deep learning-based strategies can be an effective solution to enhance the automatism level. In this research, which has been carried out in the framework of the digitisation of a wooden maquettes collection stored in the ‘Museo Egizio di Torino’, using a photogrammetric approach, an automatic masking strategy using deep learning techniques is proposed, to increase the level of automatism and therefore, optimise the photogrammetric pipeline. Starting from a manually annotated dataset, a neural network was trained to automatically perform a semantic classification to isolate the maquettes from the background. The proposed methodology allowed the researchers to obtain automatically segmented masks with a high degree of accuracy. The workflow is described (as regards acquisition strategies, dataset processing, and neural network training). In addition, the accuracy of the results is evaluated and discussed. Finally, the researchers proposed the possibility of performing a multiclass segmentation on the digital images to recognise different object categories in the images, as well as to define a semantic hierarchy to perform automatic classification of different elements in the acquired images.</p><p><strong>Highlights:</strong></p><ul><li><p>In the framework of movable heritage digitisation processes, many procedures are very time-consuming, and they still require the operator’s substantial manual involvement.</p></li><li><p>This research proposes using deep learning techniques to enhance the automatism level in the generation of exclusion masks, improving the optimisation of the photogrammetric procedures.</p></li><li><p>Following this strategy, the possibility of performing a multiclass semantic segmentation (on the 2D images and, consequently, on the 3D point cloud) is also discussed, considering the accuracy of the obtainable results.</p></li></ul>
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Sterp Moga, Emanuel, and Alicia Ortiz Sánchez. "Imanes de neodimio como propuesta de mínima intervención para procesos de conservación en soporte de tela pintados: corrección de deformaciones." Ge-conservacion 15 (June 27, 2019): 65–75. http://dx.doi.org/10.37558/gec.v15i0.602.
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En este artículo se propone una posible alternativa a los métodos tradicionales empleados en tratamientos de conservación–restauración para soportes de tela pintados siguiendo el criterio de mínima intervención. Se ha diseñado un bastidor auxiliar con sistema magnético (BASM) para la corrección de deformaciones y la sujeción perimetral de la obra con carácter temporal. A lo largo del trabajo se detalla la construcción del mecanismo propuesto y se analizan las pruebas experimentales que se han hecho sobre maquetas. Por último, se muestra la metodología seguida para su aplicación en un caso de estudio con obra real. Los resultados obtenidos con los sistemas magnéticos son muy prometedores, siendo una alternativa metodológica sencilla, de bajo coste, eficaz, reversible y respetuosa con el original.
Palabras clave: mínima intervención, pintura de caballete, conservación-restauración, imanes neodimio, soportes de tela, digitalización 3D.
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Cámara, Leandro, and Pablo Latorre. "El Modelo Analítico Tridimensional obtenido por fotogrametría. Descomposición, manipulación y aplicaciones en el campo de la restauración arquitectónica." Arqueología de la Arquitectura, no. 2 (December 30, 2003): 87. http://dx.doi.org/10.3989/arq.arqt.2003.29.
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Los edificios históricos presentan una forma y una geometría deformada y erosionada que aumenta la complejidad tridimensional de su estructura. La fotogrametría analítica y su registro en programas de CAD permite dibujar modelos analíticos 3D completos de los edificios. En éstos se representan todas las superficies visibles en un solo dibujo y en un sistema de coordenadas único, lo que permite situar cada línea en su posición real en el espacio. Estos modelos de líneas son transparentes, lo que impide ocultar las líneas que su sitúan en un segundo plano, y ocupan gran cantidad de memoria, lo que dificulta su manipulación informática. Para resolver ese problema es necesario descomponer el modelo 3D por archivos y capas de dibujo. Cada archivo de dibujo incluye las líneas restituidas de un elemento constructivo y se identifica por la tipología del elemento y su posición en el espacio del edificio. Las líneas se separan en capas según su orientación geográfica y su tipología (arista, contorno, fisura, etc.). La gestión del conjunto de archivos que componen el modelo 3D se realiza directamente por designación o gráficamente mediante un plano guía simplificado en el que cada línea es una llamada a un archivo. El modelo 3D analítico en una maqueta informática del monumento que nos permite visualizaciones y análisis métricos, geométricos, constructivos y estructurales imposibles sin esta herramienta. Al conectar informáticamente cada una de las entidades dibujadas con un sistema de bases de datos externo de los estudios del monumento se establecerá lo que conocemos como «Monument Information System», MIS.
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Hernández Sánchez, Adriana, and Christian Enrique De La Torre Sánchez. "Accesibilidad al patrimonio cultural para débiles visuales y ciegos en el Centro Histórico de Puebla." MÓDULO ARQUITECTURA CUC 21 (November 30, 2018): 181–99. http://dx.doi.org/10.17981/moducuc.21.1.2018.07.
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En términos generales, el patrimonio carece de una estrategia de accesibilidad que se acentúa en aquellas personas que presentan ceguera y debilidad visual. Por lo cual, es necesario ofrecer alternativas para que el patrimonio pueda ser conocido, o reconocido, por cualquier persona. En sus diferentes etapas, el proyecto de investigación desarrollado por la Facultad de Arquitectura de la Benemérita Universidad Autónoma de Puebla y Re Genera Espacio, plantea estrategias de accesibilidad hacia el patrimonio desarrollando una maqueta en 3D, de espacios arquitectónicos poco difundidos, obteniendo una mejor lectura del patrimonio por parte de los usuarios a través de la volumetría y el reconocimiento a detalle de los elementos. En este proceso, el equipo de trabajo se involucró con una asociación de ciegos y débiles visuales, experimentando sobre el tipo de materiales, colores y dimensiones.
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Mesquita, Maria José Maluf de, Jefferson de Lima Picanço, Marcell Leonard Besser, José Carlos Ribeiro, Heloisa Dmeterko, Angela Lucia da Silva, Giovana Marques da Cruz, et al. "A experiência da oficina “Do mito à natureza: educar o olhar para as ciências da terra” no Festival de Inverno de Antonina (PR)." Terrae Didatica 7, no. 2 (June 29, 2015): 104. http://dx.doi.org/10.20396/td.v7i2.8637433.
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A experiência de trabalhar com geomitos, ou lendas de origem geológica, revelou que os fenômenos naturais permeiam a mitologia popular. Durante encontro essencialmente artístico-cultural de 2009, o 19º Festival de Inverno de Antonina, promovido pela Universidade Federal do Paraná (UFPR). A oficina objeto deste artigo foi idealizada, elaborada e executada pelo projeto “Sala da Terra: Geociências na educação e no cotidiano da sociedade”. Houve apresentação e discussão de conceitos básicos de Geociências para professores e alunos de escolas de Antonina e outras cidades, como estabilidade de encostas, dinâmica costeira, tectônica de placas, vulcanismo e formação da Serra do Mar. Empregaram-se maquetes, modelos 3D e recursos audiovisuais, além de atividades de campo, questionários de conhecimentos e avaliação da oficina. Os resultados da avaliação pré-oficina refletem a ausência de temas de Geociências no currículo da educação básica; assuntos do currículo ou de forte exposição na mídia tiveram bom índice de acertos. A abordagem adotada promoveu prendizado e retenção de conceitos, como mostrada pela melhora na avaliação de conteúdos pós-oficina.
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Ríos Duque, A., A. Sepúlveda Giraldo, N. Toro García, and J. J. I. Cárdenas Jiménez. "Control of drives and gears in a thermal simulation booth, using free software Node-red." BISTUA REVISTA DE LA FACULTAD DE CIENCIAS BASICAS 17, no. 3 (November 22, 2019): 13. http://dx.doi.org/10.24054/01204211.v3.n3.2019.3557.
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El sistema, es un módulo mecánico de simulación de los efectos ambientales, por medio de sensores, motores y maquetas. El prototipo evalúa las condiciones térmicas y de velocidad de viento que inciden sobre estructuras a escala, para representar las afectaciones reales y posibles soluciones del modelo analizado. La estructura de aproximadamente 3 metros de longitud por 1,30 metros de ancho y altura variable, consta de una base giratoria de un metro de diámetro, la cual tiene un sistema de reducción mecánico con engranajes impresos en impresora 3D. El sistema cuenta con una tarjeta de control que permite la regulación de los motores, el control de la plataforma móvil y el control de la intensidad lumínica. Esta tarjeta es manipulada por un software libre Node-Red. El protocolo de comunicaciones está basado en la arquitectura de cliente/servidor (TCP/IP), la cual cuenta con una gran disponibilidad de conexiones de dispositivos electrónicos, fácil de implementar y maneja bloques de datos sin requerimientos previos. Palabras clave: efectos ambientales, reductores mecánicos, protocolo de comunicaciones, simulación.
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Cândido, Luis Henrique Alves, Suzane Miritz, and Jéssica Do Canto Pureza. "A PRÁTICA PEDAGÓGICA DA INTEGRAÇÃO DE TECNOLOGIAS CONSTRUTIVAS COMO FERRAMENTA DE PROJETO." Gestão & Tecnologia de Projetos 11, no. 1 (April 4, 2016): 39. http://dx.doi.org/10.11606/gtp.v11i1.99133.
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Das etapas metodológicas para o desenvolvimento de produtos, a aplicação de práticas construtivas pode ser orientada pela fabricação de modelos, protótipos e maquetes. Diante da evolução das ferramentas de projeto e da necessidade contínua de inovação, cada vez mais se necessita de laboratórios e oficinas que contemplem estruturas tecnológicas de equipamentos e pessoal de apoio. Essa estrutura visa a auxiliar a prática pedagógica orientada pela integração do projeto virtual e sua análise física. Nesse sentido, este trabalho tem por objetivo apresentar um estudo de caso no qual foi desenvolvido um equipamento utilizado para filtragem de água para consumo humano. Para isso, foi realizada a construção de um modelo estrutural que integrou tecnologias de corte a laser, de impressão 3D e processos manuais de fabricação. O foco dessa prática foi a análise, a reflexão e a validação de princípios e parâmetros projetuais a serem aplicados no projeto final. O resultado da aplicação dessa prática pedagógica, apontam para a relevância da integração de processos tecnológicos com práticas manuais, proporcionando, dessa forma, um fluxo contínuo e dinâmico de aprendizagem orientada para a resolução de problemas funcionais e construtivos.
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CALDERON HERRERA, DAVID, DEMETRIO FUENTES FERRERA, LUIS MANSILLA PLAZA, and MARIA JULIA NAVAS SANCHEZ-TIRADO. "LAS CALDERAS DE LA PRIMERA MÁQUINA DE VAPOR DE MINAS DE ALMADÉN: RECONSTRUCCIÓN 3D Y MAQUETA A PARTIR DE SUS PLANOS." DYNA INGENIERIA E INDUSTRIA 92, no. 1 (2017): 643–47. http://dx.doi.org/10.6036/8251.
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Valiño-Cultelli, Victoria, Óscar Varela-López, and Antonio González-Cantalapiedra. "Does PRGF Work? A Prospective Clinical Study in Dogs with A Novel Polylactic Acid Scaffold Injected with PRGF Using the Modified Maquet Technique." Animals 11, no. 8 (August 14, 2021): 2404. http://dx.doi.org/10.3390/ani11082404.
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Tibial tuberosity advancement is a surgical technique to restore the dynamical stability in the knee by advancing the insertion of the patellar ligament, for which it is necessary to advance the tibial crest, being maintained in the desired position usually by a cage and metallic implants. The purpose of this study was to replace the cage with a polylactic acid biodegradable scaffold designed for each patient by 3D printing, inserting platelet-rich in growth factors (PRGF) to demonstrate its osteoinductive properties. To this end, we used the modified Maquet technique to reduce the amount of metal to a minimum. Fifty-three dogs finished the study. The control and PRGF groups did not present any statistically significant differences in terms of ossification degree (p > 0.001) but they demonstrated satisfactory ossification compared to previous publications, although in the PRGF group three of the scaffolds suffered complete reabsorption. The PRGF and control groups did not show any statistically significant differences in terms of lameness degree (p > 0.001). However, the PRGF group showed at the first control some analgesic and anti-inflammatory properties but they were not enough for reducing the functional recovery time in a significant way. The PRGF group did not show any complications or negative results associated with their use.
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Valiño-Cultelli, Victoria, Óscar Varela-López, and Antonio González-Cantalapiedra. "Preliminary Clinical and Radiographic Evaluation of a Novel Resorbable Implant of Polylactic Acid (PLA) for Tibial Tuberosity Advancement (TTA) by Modified Maquet Technique (MMT)." Animals 11, no. 5 (April 28, 2021): 1271. http://dx.doi.org/10.3390/ani11051271.
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Our objectives were to determine whether PLA implants can be used in TTA with successful results; secondly, to observe whether they provide a faster bone healing; finally, to determine whether weight or age influences bone healing scores. PLA cages were created with a 3D printer. TTA by MMT with PLA implants was performed in 24 patients. Follow-ups were carried out pre-surgical, at 1, 2, and 5 months and consisted of a radiographic study and a lameness assessment. A comparison was performed in terms of weight and age. Patients data, time between follow-up examinations, healing score, and lameness score were compared between patients using commercial software for statistically significant differences p < 0.05. Eighteen dogs finished the study. The ossification degrees presented statistically significant differences between each other. PLA implants maintained the advancement in 100% of cases. Comparing weight and age did not present any statistically significant differences between groups. Lameness presented statistically significant differences between follow-up examinations. Complications were observed in 20.8%. PLA implants for TTA provide good functional results, presenting an acceptable rate of complications. They provide a faster bone healing of the osteotomy gap, which was not affected by age or body weight, and have a clinical recovery time similar to metallic implants.
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Ouimet, C., J. Gregg, S. Kretz, C. Chandler, and J. Hayes. "Documentation and dissemination of the sculptural elements of Canada's Parliamentary Buildings: Methodology development and evolution, a case study." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XL-5/W7 (August 13, 2015): 347–52. http://dx.doi.org/10.5194/isprsarchives-xl-5-w7-347-2015.
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Parliament Hill consists of four historic gothic revival buildings, which form part of the Parliament Buildings National Historic Site of Canada in the National Capital of Ottawa. There are more than 2000 masonry sculptural elements throughout the four buildings. Three of the buildings are in the middle of multi-year rehabilitation projects. Extensive Heritage Documentation is being undertaken to support various activities and conservation teams throughout the interior and exterior of the buildings while also serving as a key posterity records. One of the significant heritage documentation projects is the 3D digitization of the 2000+ heritage character defining sculptural elements. The Heritage Conservation Directorate (HCD) of Public Works and Government Services Canada (PWGSC) was tasked by the Parliamentary Precinct Branch (PPB) of PWGSC to document these character defining elements. The sculptures vary in size from as small as 100mm in width to up to 2 meters in size. This project is in its third year and much has been learned and researched about the most appropriate and efficient means by which to document these elements. Although a methodology was in place to document the sculptures at the inception of the project, it has gone through several iterations in order to improve the gathered data, and in turn increase the efficiency, quality and speed of data acquisition. This paper will describe the evolution of the methodology, as well as the rationale for the alterations in technique. <br><br> With over 600 of the approximate 2000 (heritage character defining) sculptural elements captured to date, the project is entering a critical phase where an efficient and effective method for sharing and disseminating the information to a wide audience is being explored and evaluated. The end result is intended to allow the client (PPB) and the general public a way to look at and interactively manipulate the viewpoint of each digital model. This will provide a unique opportunity for a wide audience to evaluate and appreciate these elaborate works of art. This database of information can also be of use for academic study and research. <br><br> To date the data captured by HCD has been utilized by conservation professionals and by the Carleton Immersive Media Studio (CIMS) of Carleton University. HCD has partnered with CIMS to explore a wide variety of potential uses for the data including the creation of 2D-drawings, stone carving profile templates, 3D printed scale models, CNC carved maquettes, robotic stone carving, and digitally-designed replacement elements. CIMS and HCD have tested the limits of digital technologies to assist stone carvers in restoring carved elements while also learning from the sculptors and masons to better understand their approach when conserving or restoring a sculptural element. Examples of how the conservation team, specifically the stone carvers have been working with the data and technology will also be presented.
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Rassat, Sylvain, and François-Joseph Ruggiu. "Big Data, maquette 3D et patrimoine numérique comme instruments d’étude démographique et historique : l’exemple de l’enquête « Charleville »." In Situ, no. 39 (July 9, 2019). http://dx.doi.org/10.4000/insitu.22296.
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CINTRA, JORGE PIMENTEL, and RODRIGO GONÇALES. "Aplicações das tecnologias Laser Scan e aerofotogrametria por drone para museus." Anais do Museu Paulista: História e Cultura Material 27 (2019). http://dx.doi.org/10.1590/1982-02672019v27e25d1.
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RESUMO O presente trabalho apresenta alguns conceitos e diversas aplicações da tecnologia Laser Scan 3D (LS3D) para o levantamento de monumentos, peças de museu e esculturas, visando a obtenção de modelos, maquetes virtuais, filmes, exposições virtuais e maquetes em resina. Complementa-se, em alguns casos, com os levantamentos aerofotogramétricos com drone e situa-se na área que vem sendo conhecida como realidade virtual ou realidade aumentada.
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Santos, Matheus Eduardo dos, and Roger Josef Zemp. "Implementação de um ambiente para construção de maquetes de processos químicos e equipamentos por meio de prototipagem rápida." Revista dos Trabalhos de Iniciação Científica da UNICAMP, no. 26 (February 13, 2019). http://dx.doi.org/10.20396/revpibic2620181035.
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Neste projeto estudou-se a viabilidade de implementação de um ambiente para a criação de modelos de equipamentos e maquetes de processos químicos para uso em atividades didáticas. Durante o projeto, foi utilizado o software FreeCAD, em conjunto com a linguagem de programação Python, para confecção dos objetos em uma impressora 3D. Os resultados obtidos foram promissores, demonstrando a facilidade de uso do conjunto de ferramentas para auxílio em atividades didáticas.
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Queiroz, Leonardo de Jesus, Claudio Roberto Marquetto, and Miguel Diogenes Matrakas. "Construção de uma impressora 3D: Projetos abertos de baixo custo e possibilidades da aplicação na educação." Academic Society Journal, March 1, 2019, 113–18. http://dx.doi.org/10.32640/tasj.2019.1.113.
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A tecnologia da impressão 3D tem se tornado cada vez mais popular sendo aplicada e aderida continuamente em diversas áreas. Tendo um maior foco na a área da prototipagem, pois a rápida criação por um baixo custo são características principais para concorrência industrial. A partir da construção de um modelo de impressora 3D inicial os conceitos básicos sobre a tecnologia foram estudados buscando analisar as vantagens da aplicação da impressão 3D na área educacional. A impressora construída baseia-se em modelos de projetos open hardware e softwares open source, com ênfase em baixo custo, tendo por base o projeto Prusa Mendel, uma das primeiras impressoras desenvolvidas pela iniciativa RepRap. Para controle da impressora foi utilizado o firmware Marlim e como software para fatiamento o Slic3r, ambos de código aberto podendo ser acessados, modificados e redistribuídos de forma livre conforme licença GNU GPLv3. Utilizando filamentos do tipo ABS, foram impressos diversos objetos, inclusive conectores utilizados na estrutura da própria impressora, classificando-a como hardware auto replicável. Testes de impressão adicionais foram realizados por profissionais do Centro Latino Americano de Tecnologias Abertas, onde durante dois meses foram prototipados diversos objetos como cases, conectores, caixas, maquetes e suportes para câmeras. A experiência revela que a tecnologia de impressão 3D contribuiu para a criatividade e para o dinamismo dos projetos ali desenvolvidos. Os avanços recentes proporcionados pela comunidade maker em projetos de hardware e software livre para impressão 3D tornaram a construção e uso destas impressoras técnica e economicamente viáveis para diversos usos, incluindo uso pessoal. Conclui-se que a impressão 3D apresenta grande potencial para ambientes educacionais e produtivos criando possibilidades de exploração de novas metodologias e processos que incluam a prototipação de objetos.