Virtual Campus for the University of Jaume I, Castelló, Spain: 3D Modelling of the Campus Buildings using CityEngine

Dissertation submitted in partial fulfillment of the requirements for the Degree of Master of Science in Geospatial Technologies.The Virtual Smart Campus for the University of Jaume I – Visca Uji – is a project that aims to transform the University of Jaume I (UJi) into a “Smart Campus”. Several applications are part of the Smart Campus such as Uji Place Finder, Energy Consumption, Routes, Resources Management, and Indoor Mapping. Part of this project is the creation of the 3D model of the university buildings using Esri software — City Engine. This study analysed two 3D modeling approaches: procedural modeling language (CGA Shape) and manual modeling. The first, Computer Generated Architecture (CGA) shape is an extension of set grammars that have been applied in CG successfully over the years. And the second, CityEngine offers a set of shape creation and editing tools that allows a more intuitive and pragmatic 3D modeling technique. Both approaches have advantages and disadvantages, overall creating a 3D model by using procedural modelling language showed to be the more efficient and pragmatic method

Towards Rapid Generation and Visualisation of Large 3D Urban Landscapes for Mobile Device Navigation

In this paper a procedural 3D modelling solution for mobile devices is presented based on scripting algorithms allowing for both the automatic and also semi-automatic creation of photorealistic quality virtual urban content. The combination of aerial images, GIS data, 2D ground maps and terrestrial photographs as input data coupled with a user-friendly customized interface permits the automatic and interactive generation of large-scale, accurate, georeferenced and fully-textured 3D virtual city content, content that can be specially optimized for use with mobile devices but also with navigational tasks in mind. Furthermore, a user-centred mobile virtual reality (VR) visualisation and interaction tool operating on PDAs (Personal Digital Assistants) for pedestrian navigation is also discussed. Via this engine, the import and display of various navigational file formats (2D and 3D) is supported, including a comprehensive front-end user-friendly graphical user interface providing immersive virtual 3D navigation

Image-based three-dimensional modeling of İzmir Çakaloğlu Khan

Thesis (Master)--Izmir Institute of Technology, Architectural Restoration, Izmir, 2012Includes bibliographical references (leaves: 80-83)Text in English; Abstract: Turkish and Englishxiii, 92 leavesThree-dimensional (3-D) documentation in historic building conservation is important in terms of demonstrating the size, shape, location within the settlement, architectural elements, spatial and volumetric features of the building. Alterations, decay in materials, structural problems and damages can be monitored and updated in image-based three-dimensional models of historic buildings. The focus of this thesis is on the image-based three-dimensional modeling of Çakaloğlu Khan, one of the urban Ottoman Khans in İzmir dating from the 19th century. Çakaloğlu Khan is located in the historic Kemeraltı commercial district, to the southwest of Kızlarağası Khan close to İzmir harbor. The building distinguishes itself from other urban Ottoman Khans by its location, its middle passage plan type, its mass made up of spaces of various heights and original architectural elements. The model utilized two-dimensional documentation drawings of the building consisting of plan, elevation, sections and digital photos. Primarily, the photos were edited using the softwares Zoner Photo Studio 10, Adobe Photoshop Elements 7.0 and Inkscape, following which a solid model of the Khan was built and the photos were attached to the model surface. This model was then transferred to Google Earth, and its location on the earth was determined by entering its x, y and z coordinates. This study enabled access and sharing of the three-dimensional image of the building through satellite. The exterior mass and original architectural elements of the building were documented by using low cost digital technology in threedimensions based on images. The prepared model not only enabled to holistically perceive a building hitherto hidden among densly located buildings, but also created data to discuss numerous alternatives for its conservation decisions

Low-rank Based Algorithms for Rectification, Repetition Detection and De-noising in Urban Images

In this thesis, we aim to solve the problem of automatic image rectification and repeated patterns detection on 2D urban images, using novel low-rank based techniques. Repeated patterns (such as windows, tiles, balconies and doors) are prominent and significant features in urban scenes. Detection of the periodic structures is useful in many applications such as photorealistic 3D reconstruction, 2D-to-3D alignment, facade parsing, city modeling, classification, navigation, visualization in 3D map environments, shape completion, cinematography and 3D games. However both of the image rectification and repeated patterns detection problems are challenging due to scene occlusions, varying illumination, pose variation and sensor noise. Therefore, detection of these repeated patterns becomes very important for city scene analysis. Given a 2D image of urban scene, we automatically rectify a facade image and extract facade textures first. Based on the rectified facade texture, we exploit novel algorithms that extract repeated patterns by using Kronecker product based modeling that is based on a solid theoretical foundation. We have tested our algorithms in a large set of images, which includes building facades from Paris, Hong Kong and New York

Ontological Approaches to Modelling Narrative

We outline a simple taxonomy of approaches to modelling narrative, explain how these might be realised ontologically, and describe our continuing work to apply these techniques to the problem of Memories for Life

Interactive Visualization of the Building of University of Economics – Varna via 3D Modeling

The object of this paper is presenting the University of Economics – Varna, using a 3D model with 3Ds MAX. Created in 1920, May 14, University of Economics - Varna is a cultural institution with a place and style of its own. With the emergence of the three-dimensional modeling we entered a new stage of the evolution of computer graphics. The main target is to preserve the historical vision, to demonstrate forward-thinking and using of future-oriented approaches

A Procedural Approach to Creating American Second Empire Houses

In this work, we present a procedural approach to capture a variety of appearances of American Second Empire houses, which are well known for their mansard roofs and their inspired ornamentation. To develop this procedural approach, we have identified the set of rules and similarities of Second Empire houses. Our procedural approach, therefore, captures the style differences of Second Empire houses with a relatively few number of parameters. Using our interface, we are able to generate virtual houses in a wide variety of styles of American Second Empire architecture. We have also developed a method to break up these virtual models into slices in order to efficiently and economically 3D print them. Using this method, we have printed miniatures of two landmark buildings in Savannah, GA and Baltimore, MD: The Hamilton-Turner Inn and Enoch Pratt House. We observe that the virtual models still provide more details because of the limited resolution of the 3D printing process

Kartta Labs: Collaborative Time Travel

We introduce the modular and scalable design of Kartta Labs, an open source, open data, and scalable system for virtually reconstructing cities from historical maps and photos. Kartta Labs relies on crowdsourcing and artificial intelligence consisting of two major modules: Maps and 3D models. Each module, in turn, consists of sub-modules that enable the system to reconstruct a city from historical maps and photos. The result is a spatiotemporal reference that can be used to integrate various collected data (curated, sensed, or crowdsourced) for research, education, and entertainment purposes. The system empowers the users to experience collaborative time travel such that they work together to reconstruct the past and experience it on an open source and open data platform

Procedural modeling historical buildings for serious games

[EN] In this paper we target the goal of obtaining detailed historical virtual buildings, like a castle or a city old town, through a methodology that facilitates their reconstruction. We allow having in a short time an approximation model that is flexible for being explored, analyzed and eventually modified. This is crucial for serious game development pipelines, whose objective is focused not only on accuracy and realism, but also on transmitting a sense of immersion to the player.[ES] En este trabajo apuntamos al objetivo de obtener edificios históricos virtuales con alto nivel de detalle, como por ejemplo un castillo o un barrio de una ciudad antigua, a través de una metodología que facilite su reconstrucción. Las herramientas que proponemos nos permiten obtener rápidamente un modelo aproximado y flexible para ser explorado, analizado o eventualmente modificado. Modelos con estas características son esenciales para el desarrollo en plataformas de juegos serios, cuyo objetivo fundamental se centra no sólo en la precisión y el realismo, sino también en transmitir una sensación de inmersión para el jugador.We would like to thank Adriana Desplans for help with the Carcassonne prototype. This work was partially funded with grant TIN2010-20590-C02-02 from Ministerio de Ciencia e Innovación, Spain.Besuievsky, G.; Patow, G. (2013). Procedural modeling historical buildings for serious games. Virtual Archaeology Review. 4(9):160-166. https://doi.org/10.4995/var.2013.426816016649P. Müller, P. Wonka, S. Haegler, A. Ulmer, and L. Van Gool. Procedural modeling of buildings. ACM Trans. Graph., 25(3):614-623, 2006. http://dx.doi.org/10.1145/1141911.1141931P.Musialski, P. Wonka, D. Aliaga, M. Wimmer, L. van Gool and W. Purgathofer. A Survey of Urban Reconstruction. EUROGRAPHICS 2012 State of the Art ReportsS. Haegler, P.Mller and L. Van Gool. Procedural Modeling for Digital Cultural Heritage. EURASIP J. Image and Video Processing V 2009.R. Ridorsa, G. Patow, The skylineEngine System, in XX Congreso Español de Iinformàtica Gràfica, CEIG2010 (2010), pp. 207-216L. Krecklau, C. Manthei, L. Kobbelt. Procedural Interpolation of Historical City Maps. Vol. 31 (2012), Number 2G. Patow, User-Friendly Graph Editing for Procedural Buildings.IEEE Computer Graphics and Applications, vol. 32, no. 2, Mar./Apr. 2012, pp. 66--75; http://dx.doi.org/10.1109/MCG.2010.104B.Watson, P. Müller, O. VERYOVKA, A.Filler., P. Wonka and C.Sexton. 2008. Procedural urban modeling in practice. IEEE Computer Graphics and Applications 28, 18-26. http://dx.doi.org/10.1109/MCG.2008.57CityEngine 2011. www.procedural.comG. Besuievsky and G. Patow, A Procedural Modelling Approach for Automatic Generation of LoD Building Models, Proceedings of the CISBAT 2011, pp. 993-998, Lausanne, Switzerland.O. Pueyo, G. Patow. Structuring Urban Data, Tech. Rep. IMA12-01-RR, Dept. IMA, Universitat de Girona (2012)S.Barroso, G.Patow. Recreación de estructuras arquitectónicas mediante modelaje