@techreport{WetzsteinBimber2007, author = {Wetzstein, Gordon and Bimber, Oliver}, title = {Radiometric Compensation through Inverse Light Transport}, doi = {10.25643/bauhaus-universitaet.812}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-8126}, year = {2007}, abstract = {Radiometric compensation techniques allow seamless projections onto complex everyday surfaces. Implemented with projector-camera systems they support the presentation of visual content in situations where projection-optimized screens are not available or not desired - as in museums, historic sites, air-plane cabins, or stage performances. We propose a novel approach that employs the full light transport between a projector and a camera to account for many illumination aspects, such as interreflections, refractions and defocus. Precomputing the inverse light transport in combination with an efficient implementation on the GPU makes the real-time compensation of captured local and global light modulations possible.}, subject = {Association for Computing Machinery / Special Interest Group on Graphics}, language = {en} } @techreport{VogelVoelkerArnoldetal., author = {Vogel, Albert and V{\"o}lker, Conrad and Arnold, J{\"o}rg and Schmidt, Jens and Thurow, Torsten and Braunes, J{\"o}rg and Tonn, Christian and Bode, Kay-Andr{\´e} and Baldy, Franziska and Erfurt, Wolfgang and Tatarin, Ren{\´e}}, title = {Methoden und Baustoffe zur nutzerorientierten Bausanierung. Schlussbericht zum InnoProfile Forschungsvorhaben}, organization = {Bauhaus-Universit{\"a}t Weimar}, isbn = {978-3-86068-501-3 (Printausg.)}, doi = {10.25643/bauhaus-universitaet.2022}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20130830-20229}, pages = {106}, abstract = {Nutzerorientierte Bausanierung bedeutet eine gegen{\"u}ber dem konventionellen Vorgehen deutlich verst{\"a}rkte Ausrichtung des Planungs- und Sanierungsprozesses auf die Anforderungen und Bed{\"u}rfnisse des zuk{\"u}nftigen Nutzers eines Geb{\"a}udes. Dies hat einerseits ein hochwertigeres Produkt zum Ergebnis, erfordert andererseits aber auch den Einsatz neuer Methoden und Baustoffe sowie ein vernetztes Zusammenarbeiten aller am Bauprozess Beteiligten. Der Fokus der Publikation liegt dabei auf den Bereichen, die eine hohe Relevanz f{\"u}r die nutzerorientierte Bausanierung aufweisen. Dabei handelt es sich insbesondere um: Computergest{\"u}tztes Bauaufmaß und digitale Bauwerksmodellierung (BIM), bauphysikalische Methoden zur Optimierung von Energieeffizienz und Behaglichkeit bei der Sanierung von Bestandsgeb{\"a}uden, zerst{\"o}rungsfreie Untersuchungsmethoden im Rahmen einer substanzschonenden Bauzustandsanalyse und Entwicklung von Erg{\"a}nzungsbaustoffen. Das Projekt nuBau ist eine Kooperation zwischen den Fakult{\"a}ten Bauingenieurwesen und Architektur der Bauhaus-Universit{\"a}t Weimar. Die beteiligten Professuren sind: Bauphysik, Informatik in der Architektur, Polymere Werkstoffe und Werkstoffe des Bauens.}, subject = {Nutzerorientierte Bausanierung}, language = {de} } @techreport{Stratmann2009, author = {Stratmann, Bernhard}, title = {Healthy Cities Australia : A Long-Term Study of a Success Story}, doi = {10.25643/bauhaus-universitaet.1398}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20090729-14824}, year = {2009}, abstract = {The Healthy Cities concept is based on the New Public Health approach. It aims at health promotion at the local level by encouraging community participation and intersectoral collaboration. The paper summarizes findings of research on the Australian Healthy Cities Projects. The long-term study was conducted by the author and is based on a method mix. The results of the study can partially be transferred to Healthy Cities initiatives in other parts of the world. The concept can be linked to Local Agenda 21 initiatives (sustainable urban development).}, subject = {Stadtentwicklung}, language = {en} } @techreport{SchwanckRuiz, author = {Schwanck, Anke and Ruiz, Marcelo}, title = {Allokation und Steuerung von Fl{\"a}chenressourcen in Hochschulen (FLHO)}, organization = {Bauhaus-Universit{\"a}t Weimar, Fakult{\"a}t Bauingenieurwesen, Professur Betriebswirtschaftslehre im Bauwesen}, isbn = {978-3-95773-188-3}, doi = {10.25643/bauhaus-universitaet.2357}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20150227-23570}, pages = {491}, abstract = {Generell hat sich im Forschungsprojekt insbesondere durch die Gespr{\"a}che mit den Hochschulvertretern best{\"a}tigt, dass f{\"u}r qualitativ hochwertige Lehre und Forschung qualitativ hochwertige Fl{\"a}chen in ausreichendem Umfang notwendig sind. Ein Ziel der Forschungsarbeit ist die Entwicklung von Modellen zur Allokation und Steuerung von Fl{\"a}chenressourcen in Hochschulen. Ausgehend von Darstellungen und Erfahrungen f{\"u}r die Fl{\"a}chensteuerung aus Unternehmen, anderen Bereichen der {\"o}ffentlichen Verwaltung und Forschungseinrichtungen wurden m{\"o}gliche Steuerungsverfahren f{\"u}r Hochschulen untersucht. Es wurde ein Steuerungsmodell f{\"u}r Hochschulen entwickelt, das auf die hochschulinternen und die extern wirksamen Rahmenbedingungen reagiert. Die hochschulinterne Fl{\"a}chenallokation wird zum einen maßgeblich von externen Rahmen-bedingungen und zum zweiten von internen Prozessen, Abl{\"a}ufen und Strukturen beeinflusst. Die Kenntnis dieser Bedingungen wird als Voraussetzung f{\"u}r die Benennung von Erfolgsfak-toren f{\"u}r die Implementation neuer Steuerungsmodelle angenommen. Analysiert wurden daher die liegenschaftspolitischen und die organisatorischen Rahmenbedingungen sowie die steuerungsrelevanten Eigenschaften der Fl{\"a}chen selber.}, subject = {Fl{\"a}che}, language = {de} } @techreport{Schaber, author = {Schaber, Carsten}, title = {The Flow of People as an Indicator for the Appraisal of HST related Strategies and Interventions into Urban Space}, doi = {10.25643/bauhaus-universitaet.2115}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20140205-21159}, pages = {69}, abstract = {This paper divides into a theoretical and a practical part. The former describes the relevance of the flow of people for urban development and the appraisal of HST related issues. Further Space Syntax and its main ideas and measures are introduced, like the role of axial maps and their preparation for example. Part one also contains background information about the collection of data on site in Leipzig. The second part exemplifies the case of the City-Tunnel Project in Leipzig, Germany and the practical use of the Space Syntax method. The project stands for the implementation of a future regional train network in the wider metropolitan area of Leipzig and Halle}, subject = {Urbanistik, St{\"a}dtebau}, language = {en} } @techreport{Schaber2006, author = {Schaber, Carsten}, title = {Strategic Developments}, series = {Yearbook of Model Projects 2005 / 2006}, journal = {Yearbook of Model Projects 2005 / 2006}, doi = {10.25643/bauhaus-universitaet.820}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-8207}, year = {2006}, abstract = {The report is about the role of Regional Development Agencies (RDAs)in England. These were founded in 1999. At first their concept, aims and orgins are addressed. Secondly the work of such an agency is explained exemplary by introducing the monitoring report Strategic Developments.}, subject = {Landesentwicklungsgesellschaft}, language = {en} } @techreport{MuellerSeidelLudwigetal., author = {M{\"u}ller, Christoph and Seidel, Maik and Ludwig, Horst-Michael and M{\"u}ller, Matthias}, title = {Pr{\"u}fung des Frost-Tausalz-Widerstandes von Beton f{\"u}r die Expositionsklasse XF2}, doi = {10.25643/bauhaus-universitaet.4887}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20240226-48877}, pages = {34}, abstract = {In cold and moderate climates concrete can be subjected to a combined salt frost attack, which can cause scaling damage. Consequently, numerous test procedures were developed to determine the resistance of concrete compositions against this kind of attack. These tests typically mimic a severe attack with high levels of saturation, e.g. as for concrete pavements. Very few approaches exist for testing the salt frost scaling resistance of concretes, which are subjected only to medium levels of saturation, as such concrete elements typically don't show notable scaling damage. However, the increasing use of low carbon cements with high clinker substitution rates might affect the salt frost scaling resistance of such concrete elements to some extent. To ensure adequate durability of such concretes it is thus desirable to determine their performance in an actual test procedure instead of relying on past experience. Thus, less severe test methods was developed, which are based on the Slab test and the CDF test, repectively.}, subject = {Beton}, language = {de} } @techreport{KoenigTapiasSchmitt, author = {K{\"o}nig, Reinhard and Tapias, Estefania and Schmitt, Gerhard}, title = {New Methods in Urban Analysis and Simulation: Documentation of teaching results from the spring semester 2015}, organization = {ETH Zurich}, doi = {10.25643/bauhaus-universitaet.2505}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20160118-25052}, pages = {76}, abstract = {Documentation of teaching results from the spring semester 2015 at the chair of Information Architecture at ETH Zurich}, subject = {Architektur}, language = {en} } @techreport{KoenigTapiasSchmitt, author = {K{\"o}nig, Reinhard and Tapias, Estefania and Schmitt, Gerhard}, title = {New Methods in Urban Analysis and Simulation: Documentation of teaching results from the autumn semester 2013}, doi = {10.25643/bauhaus-universitaet.2516}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20160121-25168}, pages = {60}, abstract = {Documentation of teaching results from the autumn semester 2013 at ETH Zurich}, subject = {St{\"a}dtebau}, language = {en} } @techreport{KoenigTapiasSchmitt, author = {K{\"o}nig, Reinhard and Tapias, Estefania and Schmitt, Gerhard}, title = {New Methods in Urban Analysis and Simulation: Documentation of the teaching results from the spring semester 2014}, doi = {10.25643/bauhaus-universitaet.2515}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20160121-25154}, pages = {62}, abstract = {Documentation of the teaching results from the spring semester 2014 at ETH Zurich}, subject = {St{\"a}dtebau}, language = {en} } @techreport{KoenigTapiasKoenig, author = {K{\"o}nig, Reinhard and Tapias, Estefania and K{\"o}nig, Gerhard}, title = {Digital Urban Simulation: Documentation of the teaching results from the fall semester 2014}, organization = {ETH Zurich}, doi = {10.25643/bauhaus-universitaet.2512}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20160121-25125}, pages = {102}, abstract = {Documentation of the teaching results from the fall semester 2014}, subject = {St{\"a}dtebau}, language = {en} } @techreport{KurzHaentschGrosseetal.2007, author = {Kurz, Daniel and H{\"a}ntsch, Ferry and Grosse, Max and Schiewe, Alexander and Bimber, Oliver}, title = {Laser Pointer Tracking in Projector-Augmented Architectural Environments}, doi = {10.25643/bauhaus-universitaet.818}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-8183}, year = {2007}, abstract = {We present a system that applies a custom-built pan-tilt-zoom camera for laser-pointer tracking in arbitrary real environments. Once placed in a building environment, it carries out a fully automatic self-registration, registrations of projectors, and sampling of surface parameters, such as geometry and reflectivity. After these steps, it can be used for tracking a laser spot on the surface as well as an LED marker in 3D space, using inter-playing fisheye context and controllable detail cameras. The captured surface information can be used for masking out areas that are critical to laser-pointer tracking, and for guiding geometric and radiometric image correction techniques that enable a projector-based augmentation on arbitrary surfaces. We describe a distributed software framework that couples laser-pointer tracking for interaction, projector-based AR as well as video see-through AR for visualizations with the domain specific functionality of existing desktop tools for architectural planning, simulation and building surveying.}, subject = {Association for Computing Machinery / Special Interest Group on Graphics}, language = {en} } @techreport{KlemensTetzner2011, author = {Klemens, Laub and Tetzner, Thomas}, title = {Social Game Environmental Management}, doi = {10.25643/bauhaus-universitaet.1459}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20110905-15587}, year = {2011}, abstract = {Was ist soziales spielen? Warum ist es heutzutage so beliebt? Welche Mechaniken stecken hinter dem Erfolg? Weiterhin behandelt der Bericht eine neue Spielidee, die eine umwelttechnische Komponente f{\"u}r Bildungszwecke beinhaltet.}, subject = {Facebook}, language = {en} } @techreport{GrundhoeferSeegerHaentschetal.2007, author = {Grundh{\"o}fer, Anselm and Seeger, Manja and H{\"a}ntsch, Ferry and Bimber, Oliver}, title = {Dynamic Adaptation of Projected Imperceptible Codes}, doi = {10.25643/bauhaus-universitaet.816}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-8168}, year = {2007}, abstract = {In this paper we present a novel adaptive imperceptible pattern projection technique that considers parameters of human visual perception. A coded image that is invisible for human observers is temporally integrated into the projected image, but can be reconstructed by a synchronized camera. The embedded code is dynamically adjusted on the fly to guarantee its non-perceivability and to adapt it to the current camera pose. Linked with real-time flash keying, for instance, this enables in-shot optical tracking using a dynamic multi-resolution marker technique. A sample prototype is realized that demonstrates the application of our method in the context of augmentations in television studios.}, subject = {Association for Computing Machinery / Special Interest Group on Graphics}, language = {en} } @techreport{GrundhoeferBimber2008, author = {Grundh{\"o}fer, Anselm and Bimber, Oliver}, title = {Dynamic Bluescreens}, doi = {10.25643/bauhaus-universitaet.1233}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20080226-13016}, year = {2008}, abstract = {Blue screens and chroma keying technology are essential for digital video composition. Professional studios apply tracking technology to record the camera path for perspective augmentations of the original video footage. Although this technology is well established, it does not offer a great deal of flexibility. For shootings at non-studio sets, physical blue screens might have to be installed, or parts have to be recorded in a studio separately. We present a simple and flexible way of projecting corrected keying colors onto arbitrary diffuse surfaces using synchronized projectors and radiometric compensation. Thereby, the reflectance of the underlying real surface is neutralized. A temporal multiplexing between projection and flash illumination allows capturing the fully lit scene, while still being able to key the foreground objects. In addition, we embed spatial codes into the projected key image to enable the tracking of the camera. Furthermore, the reconstruction of the scene geometry is implicitly supported.}, subject = {Association for Computing Machinery / Special Interest Group on Graphics}, language = {en} } @techreport{GrosseBimber2008, author = {Grosse, Max and Bimber, Oliver}, title = {Coded Aperture Projection}, doi = {10.25643/bauhaus-universitaet.1234}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20080227-13020}, year = {2008}, abstract = {In computer vision, optical defocus is often described as convolution with a filter kernel that corresponds to an image of the aperture being used by the imaging device. The degree of defocus correlates to the scale of the kernel. Convolving an image with the inverse aperture kernel will digitally sharpen the image and consequently compensate optical defocus. This is referred to as deconvolution or inverse filtering. In frequency domain, the reciprocal of the filter kernel is its inverse, and deconvolution reduces to a division. Low magnitudes in the Fourier transform of the aperture image, however, lead to intensity values in spatial domain that exceed the displayable range. Therefore, the corresponding frequencies are not considered, which then results in visible ringing artifacts in the final projection. This is the main limitation of previous approaches, since in frequency domain the Gaussian PSF of spherical apertures does contain a large fraction of low Fourier magnitudes. Applying only small kernel scales will reduce the number of low Fourier magnitudes (and consequently the ringing artifacts) -- but will also lead only to minor focus improvements. To overcome this problem, we apply a coded aperture whose Fourier transform has less low magnitudes initially. Consequently, more frequencies are retained and more image details are reconstructed.}, subject = {Association for Computing Machinery / Special Interest Group on Graphics}, language = {en} } @techreport{GrossSchirmer2008, author = {Gross, Tom and Schirmer, Maximilian}, title = {CollaborationBus Aqua: An Editor for Storytelling in Mixed Reality Settings}, doi = {10.25643/bauhaus-universitaet.1360}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20081103-14359}, year = {2008}, abstract = {Capturing the interaction of users in a room based on real-world and electronic sensors provides valuable input for their interactive stories. However, in such complex scenarios there is a gap between the huge amount of rather fine-grained data that is captured and the story summarising and representing the most significant aspects of the interaction. In this paper we present the CollaborationBus Aqua editor that provides an easy to use graphical editor for capturing, authoring, and sharing stories based on mixed-reality scenarios.}, subject = {Angewandte Informatik}, language = {en} } @techreport{GrossOemig2008, author = {Gross, Tom and Oemig, Christoph}, title = {Presence, Privacy, and PRIMIFaces: Towards Selective Information Disclosure in Instant Messaging}, doi = {10.25643/bauhaus-universitaet.1275}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20080314-13452}, year = {2008}, abstract = {Efficient distant cooperation often requires spontaneous ad-hoc social interaction, which is only possible with adequate information on the prospective communication partner. This often requires disclosing and sharing personal information via tools such as instant messaging systems and can conflict with the users' wishes for privacy. In this paper we present an initial study investigating this trade-off and discuss implications for the design of instant messaging systems. We present the functionality and design of the PRIMIFaces instant messaging prototype supporting flexible identity management and selective information disclosure.}, subject = {Angewandte Informatik}, language = {en} } @techreport{GrossOemig2005, author = {Gross, Tom and Oemig, Christoph}, title = {COBRA: A Constraint-Based Awareness Management Framework}, doi = {10.25643/bauhaus-universitaet.745}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-7451}, year = {2005}, abstract = {The effective and efficient cooperation in communities and groups requires that the members of the community or group have adequate information about each other and the environment. In this paper, we outline the basic challenges of managing awareness information. We analyse the management of awareness information in face-to-face situations, and discuss challenges and requirements for the support of awareness management in distributed settings. Finally, after taking a look at related work, we present a simple, yet powerful framework for awareness management based on constraint pattern named COBRA.}, subject = {Angewandte Informatik}, language = {en} } @techreport{GrossOemig2006, author = {Gross, Tom and Oemig, Christoph}, title = {'Sorry, Pal---What I See is Usually Not What You Get!': The Role of Reciprocity in Information Disclosure}, doi = {10.25643/bauhaus-universitaet.747}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-7474}, year = {2006}, abstract = {For efficient distant cooperation the members of workgroups need information about each other. This need for information disclosure often conflicts with the users' wishes for privacy. In the literature often reciprocity is suggested as a solution to this trade-off. Yet, this conception of reciprocity and its enforcement by systems does not match reality. In this paper we present our study's major findings investigating the role of reciprocity among which we found that participants greatly disregarded the above conception. Additionally we discuss their significant implications for the design of systems seeking to disclose personal information.}, subject = {Angewandte Informatik}, language = {en} }