TY - RPRT A1 - Wetzstein, Gordon A1 - Bimber, Oliver T1 - Radiometric Compensation through Inverse Light Transport N2 - 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. KW - Association for Computing Machinery / Special Interest Group on Graphics KW - CGI KW - Maschinelles Sehen KW - Projektionssystem KW - radiometrische Kompensation KW - Licht Transport KW - Projector-Camera Systems KW - Radiometric Compensation KW - Inverse Light Transport Y1 - 2007 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20111215-8126 ER - TY - RPRT A1 - Vogel, Albert A1 - Völker, Conrad A1 - Arnold, Jörg A1 - Schmidt, Jens A1 - Thurow, Torsten A1 - Braunes, Jörg A1 - Tonn, Christian A1 - Bode, Kay-André A1 - Baldy, Franziska A1 - Erfurt, Wolfgang A1 - Tatarin, René T1 - Methoden und Baustoffe zur nutzerorientierten Bausanierung. Schlussbericht zum InnoProfile Forschungsvorhaben N2 - Nutzerorientierte Bausanierung bedeutet eine gegenüber dem konventionellen Vorgehen deutlich verstärkte Ausrichtung des Planungs- und Sanierungsprozesses auf die Anforderungen und Bedürfnisse des zukünftigen Nutzers eines Gebäudes. 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 für die nutzerorientierte Bausanierung aufweisen. Dabei handelt es sich insbesondere um: Computergestütztes Bauaufmaß und digitale Bauwerksmodellierung (BIM), bauphysikalische Methoden zur Optimierung von Energieeffizienz und Behaglichkeit bei der Sanierung von Bestandsgebäuden, zerstörungsfreie Untersuchungsmethoden im Rahmen einer substanzschonenden Bauzustandsanalyse und Entwicklung von Ergänzungsbaustoffen. Das Projekt nuBau ist eine Kooperation zwischen den Fakultäten Bauingenieurwesen und Architektur der Bauhaus-Universität Weimar. Die beteiligten Professuren sind: Bauphysik, Informatik in der Architektur, Polymere Werkstoffe und Werkstoffe des Bauens. T3 - Schriftenreihe der Professur Bauphysik - 5 KW - Nutzerorientierte Bausanierung KW - BIM KW - zerstörungsfreie Prüfung KW - bauphysikalische Methoden KW - Ergänzungsbaustoffe Y1 - 2013 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20130830-20229 UR - http://www.uni-weimar.de/cms/bauing/projekte/nubau/home.html SN - 978-3-86068-501-3 (Printausg.) ER - TY - RPRT A1 - Stratmann, Bernhard T1 - Healthy Cities Australia : A Long-Term Study of a Success Story N2 - 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). N2 - Weltweit beteiligen sich mehrere tausend Kommunen an dem Healthy Cities Projekt der Weltgesundheitsorganisation (WHO), auch in Deutschland gehören viele Städte dem internationalen Netzwerk an. In der vom Autor durchgeführten Langzeitstudie werden die Erfolgsbedingungen lokaler Gesunde-Städte-Projekte untersucht. Die Studie stützt sich dabei auf die Untersuchung australischer Projekte. Die Ergebnisse lassen sich z.T. auf Healthy-Cities-Projekte in anderen Regionen der Welt übertragen. Auch lassen sich deutliche Parallelen zu Ansätzen nachhaltiger Stadtentwicklung (z.B. Lokale Agenda 21) feststellen, so dass Synergien entstehen können. KW - Stadtentwicklung KW - Gesundheitswissenschaften und öffentliche Gesundheitsförderung KW - Australien KW - Gesunde-Städte-Projekt KW - Healthy Cities Project Y1 - 2009 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20090729-14824 ER - TY - RPRT A1 - Schwanck, Anke A1 - Ruiz, Marcelo T1 - Allokation und Steuerung von Flächenressourcen in Hochschulen (FLHO) N2 - Generell hat sich im Forschungsprojekt insbesondere durch die Gespräche mit den Hochschulvertretern bestätigt, dass für qualitativ hochwertige Lehre und Forschung qualitativ hochwertige Flächen in ausreichendem Umfang notwendig sind. Ein Ziel der Forschungsarbeit ist die Entwicklung von Modellen zur Allokation und Steuerung von Flächenressourcen in Hochschulen. Ausgehend von Darstellungen und Erfahrungen für die Flächensteuerung aus Unternehmen, anderen Bereichen der öffentlichen Verwaltung und Forschungseinrichtungen wurden mögliche Steuerungsverfahren für Hochschulen untersucht. Es wurde ein Steuerungsmodell für Hochschulen entwickelt, das auf die hochschulinternen und die extern wirksamen Rahmenbedingungen reagiert. Die hochschulinterne Flächenallokation wird zum einen maßgeblich von externen Rahmen-bedingungen und zum zweiten von internen Prozessen, Abläufen und Strukturen beeinflusst. Die Kenntnis dieser Bedingungen wird als Voraussetzung für die Benennung von Erfolgsfak-toren für die Implementation neuer Steuerungsmodelle angenommen. Analysiert wurden daher die liegenschaftspolitischen und die organisatorischen Rahmenbedingungen sowie die steuerungsrelevanten Eigenschaften der Flächen selber. N2 - A main goal of this research project is to develop models for space allocation and management in universities. Based on the experiences of space management in other areas of public administration and research institutions, possible methods for space management in higher education have been analyzed. A management model has been developed which reacts to universities internal and external parameters. Space allocation in higher education is depending on external conditions as well as on internal processes and structures. Knowing those parameters has been assumed to build the foundation to appoint the factors of success for the implementation of new space management models. Therefore parameters of property policy, organization and relevant characteristics of management of Space have been analyzed. T3 - Schriftenreihe der Professur Betriebswirtschaftslehre im Bauwesen - 22 KW - Fläche KW - Flächensteuerung KW - space KW - Flächenmanagement KW - Flächensteuerungsmodell KW - Flächenoptimierung KW - Flächenverteilung KW - Flächenallokation KW - Facility Management KW - Hochschule KW - Universität KW - space management KW - space allocation KW - space management model KW - space optimization KW - facility management KW - higher education KW - university Y1 - 2015 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20150227-23570 SN - 978-3-95773-188-3 ER - TY - RPRT A1 - Schaber, Carsten T1 - The Flow of People as an Indicator for the Appraisal of HST related Strategies and Interventions into Urban Space N2 - 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 KW - Urbanistik, Städtebau KW - Mobility KW - Network Sciences Y1 - 2007 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20140205-21159 N1 - Compare: SCHABER 2006: Space Syntax als Werkzeug. ER - TY - RPRT A1 - Schaber, Carsten T1 - Strategic Developments T2 - Yearbook of Model Projects 2005 / 2006 N2 - 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. KW - Landesentwicklungsgesellschaft KW - Strategische Planung KW - Strategische Projekte KW - LEG KW - Monitoring Bericht KW - Strategic Development KW - RDA KW - Monitoring Y1 - 2006 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20111215-8207 ER - TY - RPRT A1 - Müller, Christoph A1 - Seidel, Maik A1 - Ludwig, Horst-Michael A1 - Müller, Matthias T1 - Prüfung des Frost-Tausalz-Widerstandes von Beton für die Expositionsklasse XF2 N2 - 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. N2 - In kalten und gemäßigten Klimazonen kann Beton einem kombinierten Frost-Tausalz-Angriff ausgesetzt sein, der zu Schäden in Form von Abwitterungen führen kann. Daher wurden zahlreiche Prüfverfahren entwickelt, um die Widerstandsfähigkeit von Betonzusammensetzungen gegen diese Art des Angriffs zu bestimmen. Diese Tests simulieren in der Regel einen starken Angriff mit hohen Sättigungsgraden, wie z. B. bei Betonfahrbahnen. Es gibt nur sehr wenige Ansätze für die Prüfung des Widerstands von Betonen, die nur einem mittleren Sättigungsgrad ausgesetzt sind, da solche Betonelemente in der Regel keine nennenswerten Abwitterungen aufweisen. Die zunehmende Verwendung von klinkereffizienten Zementen könnte sich jedoch in gewissem Maße auf den Frost-Tausalz-Widerstand solcher Betonelemente auswirken. Um eine angemessene Dauerhaftigkeit zu gewährleisten ist es daher wünschenswert, ihre Leistungsfähigkeit in einem tatsächlichen Prüfverfahren zu ermitteln, anstatt sich auf Erfahrungswerte zu verlassen. Daher wurden Ansätze für abgeschwächte Prüfverfahren entwickelt, die auf dem Slab-Test bzw. dem CDF-Test beruhen. KW - Beton KW - Frost KW - Prüfverfahren KW - Beton KW - Frost-Tausalz-Widerstand KW - XF2 KW - CDF KW - Slab-Test Y1 - 2021 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20240226-48877 ER - TY - RPRT A1 - König, Reinhard A1 - Tapias, Estefania A1 - Schmitt, Gerhard T1 - New Methods in Urban Analysis and Simulation: Documentation of teaching results from the spring semester 2015 N2 - Documentation of teaching results from the spring semester 2015 at the chair of Information Architecture at ETH Zurich KW - Architektur Y1 - 2015 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20160118-25052 ER - TY - RPRT A1 - König, Reinhard A1 - Tapias, Estefania A1 - Schmitt, Gerhard T1 - New Methods in Urban Analysis and Simulation: Documentation of teaching results from the autumn semester 2013 N2 - Documentation of teaching results from the autumn semester 2013 at ETH Zurich KW - Städtebau Y1 - 2013 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20160121-25168 ER - TY - RPRT A1 - König, Reinhard A1 - Tapias, Estefania A1 - Schmitt, Gerhard T1 - New Methods in Urban Analysis and Simulation: Documentation of the teaching results from the spring semester 2014 N2 - Documentation of the teaching results from the spring semester 2014 at ETH Zurich KW - Städtebau Y1 - 2014 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20160121-25154 ER - TY - RPRT A1 - König, Reinhard A1 - Tapias, Estefania A1 - König, Gerhard T1 - Digital Urban Simulation: Documentation of the teaching results from the fall semester 2014 N2 - Documentation of the teaching results from the fall semester 2014 KW - Städtebau Y1 - 2014 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20160121-25125 ER - TY - RPRT A1 - Kurz, Daniel A1 - Häntsch, Ferry A1 - Grosse, Max A1 - Schiewe, Alexander A1 - Bimber, Oliver T1 - Laser Pointer Tracking in Projector-Augmented Architectural Environments N2 - 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. KW - Association for Computing Machinery / Special Interest Group on Graphics KW - CGI KW - Architektur KW - Maschinelles Sehen KW - Laserpointer Tracking KW - Erweiterte Realität KW - Interaktion KW - Projektion KW - Verteilte Systeme KW - Laser Pointer Tracking KW - Augmented Reality KW - Interaction KW - Projection KW - Distributed Systems Y1 - 2007 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20111215-8183 ER - TY - RPRT A1 - Klemens, Laub A1 - Tetzner, Thomas T1 - Social Game Environmental Management N2 - 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 für Bildungszwecke beinhaltet. N2 - What is social gaming? Why it is so popular nowadays? Which are the mechanics behind the success? The report deals also with the creative creation of a new game idea with an environment technical content for an educational matter. KW - Facebook KW - Facebook KW - social game KW - game mechanic Y1 - 2011 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20110905-15587 ER - TY - RPRT A1 - Grundhöfer, Anselm A1 - Seeger, Manja A1 - Häntsch, Ferry A1 - Bimber, Oliver T1 - Dynamic Adaptation of Projected Imperceptible Codes N2 - 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. KW - Association for Computing Machinery / Special Interest Group on Graphics KW - CGI KW - Maschinelles Sehen KW - Erweiterte Realität KW - Kamera Tracking KW - Projektion KW - Augmented Reality KW - Camera Tracking KW - Projection Y1 - 2007 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20111215-8168 ER - TY - RPRT A1 - Grundhöfer, Anselm A1 - Bimber, Oliver T1 - Dynamic Bluescreens N2 - 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. KW - Association for Computing Machinery / Special Interest Group on Graphics KW - CGI KW - Maschinelles Sehen KW - Farbstanzen KW - Erweiterte Realität KW - Projektion KW - Chroma Keying KW - Bildmischung KW - Augmented Reality KW - Projection KW - Chromakeying KW - Compositing Y1 - 2008 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20080226-13016 ER - TY - RPRT A1 - Grosse, Max A1 - Bimber, Oliver T1 - Coded Aperture Projection N2 - 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. KW - Association for Computing Machinery / Special Interest Group on Graphics KW - CGI KW - Projektion KW - Blende Y1 - 2008 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20080227-13020 ER - TY - RPRT A1 - Gross, Tom A1 - Schirmer, Maximilian T1 - CollaborationBus Aqua: An Editor for Storytelling in Mixed Reality Settings N2 - 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. KW - Angewandte Informatik KW - Ubiquitous Computing KW - Computer-Supported Cooperative Work KW - Editor KW - Konfiguration KW - Ubiquitous Computing KW - Computer-Supported Cooperative Work KW - Editor KW - configuration Y1 - 2008 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20081103-14359 ER - TY - RPRT A1 - Gross, Tom A1 - Oemig, Christoph T1 - Presence, Privacy, and PRIMIFaces: Towards Selective Information Disclosure in Instant Messaging N2 - 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. KW - Angewandte Informatik KW - Awareness KW - Gruppengewahrsein KW - Privatsphäre KW - Reziprozität KW - Ubiquitous Computing KW - Awareness KW - Group Awareness KW - Privacy KW - Reciprocity KW - Ubiquitous Computing Y1 - 2008 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20080314-13452 ER - TY - RPRT A1 - Gross, Tom A1 - Oemig, Christoph T1 - COBRA: A Constraint-Based Awareness Management Framework N2 - 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. KW - Angewandte Informatik KW - Awareness KW - Gruppengewahrsein KW - Privatsphaere KW - Reziprozitaet KW - Awareness KW - information sharing KW - privacy KW - reciprocity Y1 - 2005 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20111215-7451 ER - TY - RPRT A1 - Gross, Tom A1 - Oemig, Christoph T1 - 'Sorry, Pal---What I See is Usually Not What You Get!': The Role of Reciprocity in Information Disclosure N2 - 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. KW - Angewandte Informatik KW - Awareness KW - Gruppengewahrsein KW - Privatsphaere KW - Reziprozitaet KW - Awareness KW - information sharing KW - privacy KW - reciprocity Y1 - 2006 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20111215-7474 ER -