A Survey of Urban Reconstruction

Weiss, Tomer; Wonka, Peter; Aliaga, Daniel G.; Wimmer, Michael; Gool, Luc Van; Purgathofer, Werner

doi:10.1111/cgf.12077

Cited by 378 publications

(264 citation statements)

References 268 publications

(358 reference statements)

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“…Image-based modelling, also referred as photogrammetric modelling, builds static 3D virtual models based on two or more images of the scene taken from different perspectives (Musialski et al, 2013). Although consisting on the oldest method to recover the 3D geometry of an object through interactive stereo or multiview acquisition of its 3D coordinates -a time consuming operation requiring a lot of expertise-it has, in the last years, regained popularity among nonexperts.…”

Section: Building 3d Virtual Modelsmentioning

confidence: 99%

Digital preservation of cultural and scientific heritage: involving university students to raise awareness of its importance

Redweik

Cláudio

Carmo

et al. 2017

Virtual archaeol. rev.

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Abstract:Cultural heritage is a relevant issue in contemporary society. While its preservation is a challenge, its dissemination, can contribute for an economic balance between costs and benefits. Scientific heritage can be considered as a special domain of cultural heritage, not yet sought by the mass tourism, but worth being preserved as the roots of today's knowledge. Considering that university students of engineering and computer science traditionally do not address cultural or scientific heritage issues in their syllabus, and that they constitute a layer of young citizens that will come to be influential in the future of society, an effort was undertaken to focus on this theme in disciplines of different courses, allying the learning of technical skills with the natural interest of younger people for 3D and animation for the profit of heritage. The goal was to raise the awareness of this particular group to the importance of maintaining heritage issues, in particular, in a virtual way, both for documentation and for divulgating their existence. Raising funds for buildings' restoration, attracting the public to visit buildings and collections that are outside the usual tourism routes, contributing to revenue generation, or allowing virtual visits of not accessible issues, complementing physical visits on site, were the general aims of the proposed projects. A survey was undertaken under the participating students to evaluate how the projects influenced their attitude towards heritage. The obtained feedback was very positive: 76% agreed that the project alerted them for the importance of preserving historical and cultural heritage, while 72% considered it was interesting that the topic of digital cultural heritage was used for the assessments of the disciplines. Key words: education, heritage dissemination, 3D modelling, animation Resumen:El patrimonio cultural es un tema relevante en la sociedad contemporánea. Mientras que su conservación es un reto, su difusión puede contribuir a un equilibrio económico entre costes y beneficios. El patrimonio científico puede ser considerado como un dominio especial del patrimonio cultural, y aunque todavía no es buscado por el turismo de masas, vale la pena ser conservado. Teniendo en cuenta que los estudiantes universitarios de ingeniería e informática tradicionalmente no abordan cuestiones de patrimonio cultural o científico en su plan de estudios, y que estos constituyen un grupo de ciudadanos jóvenes que serán influyentes en el futuro de la sociedad, se ha realizado un esfuerzo para centrarse en este tema en las disciplinas de diferentes cursos, uniéndose el aprendizaje de habilidades técnicas con el interés natural de las personas más jóvenes hacia el 3D y la animación para el beneficio del patrimonio. El objetivo era aumentar la conciencia de este grupo en particular en la importancia de mantener los temas de patrimonio. La recaudación de fondos para la restauración de edificios, atraer al público a visitar los edificios y colecciones que se encuentran fuera de las...

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Section: Building 3d Virtual Modelsmentioning

confidence: 99%

Digital preservation of cultural and scientific heritage: involving university students to raise awareness of its importance

Redweik

Cláudio

Carmo

et al. 2017

Virtual archaeol. rev.

View full text Add to dashboard Cite

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“…For a comprehensive overview of research activities in urban reconstruction in the fields of computer graphics, computer vision, photogrammetry, and remote sensing we refer the reader to the survey of Musialski et al [16]. Despite the efforts and major progress in the automatic generation of accurate parametric 3D models [12,13,17] from airborne or ground-based imagery and point clouds, 3D reconstruction remains a complex and ill-posed tasks.…”

Section: Related Workmentioning

confidence: 99%

Cloud-Based Geospatial 3D Image Spaces—A Powerful Urban Model for the Smart City

Nebiker

Cavegn

Loesch

2015

IJGI

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Abstract:In this paper, we introduce the concept and an implementation of geospatial 3D image spaces as new type of native urban models. 3D image spaces are based on collections of georeferenced RGB-D imagery. This imagery is typically acquired using multi-view stereo mobile mapping systems capturing dense sequences of street level imagery. Ideally, image depth information is derived using dense image matching. This delivers a very dense depth representation and ensures the spatial and temporal coherence of radiometric and depth data. This results in a high-definition WYSIWYG ("what you see is what you get") urban model, which is intuitive to interpret and easy to interact with, and which provides powerful augmentation and 3D measuring capabilities. Furthermore, we present a scalable cloud-based framework for generating 3D image spaces of entire cities or states and a client architecture for their web-based exploitation. The model and the framework strongly support the smart city notion of efficiently connecting the urban environment and its processes with experts and citizens alike. In the paper we particularly investigate quality aspects of the urban model, namely the obtainable georeferencing accuracy and the quality of the depth map extraction. We show that our image-based georeferencing approach is capable of improving the original direct georeferencing accuracy by an order of magnitude and that the presented new multi-image matching approach is capable of providing high accuracies along with a significantly improved completeness of the depth maps.

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“…In the context of urban modeling, procedural systems can be used to cover different levels of detail, as has been shown in a survey for urban reconstruction by PRZEMYSLAW MUSIALKSI et al [94]. On a coarse scale, the procedural paradigm is applicable to the generation of terrain, e.g., using methods based on hydrology, as presented by JEAN-DAVID GÉNEVAUX [95], or for the inexpensive reconstruction of the landscape surrounding a road, as presented by CARLOS ANDÚJAR et al [96].…”

Section: Urban Modelingmentioning

confidence: 99%

A Survey of Algorithmic Shapes

2015

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In the context of computer-aided design, computer graphics and geometry processing, the idea of generative modeling is to allow the generation of highly complex objects based on a set of formal construction rules. Using these construction rules, a shape is described by a sequence of processing steps, rather than just by the result of all applied operations: shape design becomes rule design. Due to its very general nature, this approach can be applied to any domain and to any shape representation that provides a set of generating functions. The aim of this survey is to give an overview of the concepts and techniques of procedural and generative modeling, as well as their applications with a special focus on archeology and architecture.

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A Survey of Urban Reconstruction

Cited by 378 publications

References 268 publications

Digital preservation of cultural and scientific heritage: involving university students to raise awareness of its importance

Digital preservation of cultural and scientific heritage: involving university students to raise awareness of its importance

Cloud-Based Geospatial 3D Image Spaces—A Powerful Urban Model for the Smart City

A Survey of Algorithmic Shapes

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