TY  - INPR
A1  - Grundhöfer, Anselm
A1  - Bimber, Oliver
T1  - Real-Time Adaptive Radiometric Compensation
N2  - Recent radiometric compensation techniques make it possible to project images onto colored and textured surfaces. This is realized with projector-camera systems by scanning the projection surface on a per-pixel basis. With the captured information, a compensation image is calculated that neutralizes geometric distortions and color blending caused by the underlying surface. As a result, the brightness and the contrast of the input image is reduced compared to a conventional projection onto a white canvas. If the input image is not manipulated in its intensities, the compensation image can contain values that are outside the dynamic range of the projector. They will lead to clipping errors and to visible artifacts on the surface. In this article, we present a novel algorithm that dynamically adjusts the content of the input images before radiometric compensation is carried out. This reduces the perceived visual artifacts while simultaneously preserving a maximum of luminance and contrast. The algorithm is implemented entirely on the GPU and is the first of its kind to run in real-time.
KW  - Maschinelles Sehen
KW  - CGI <Computergraphik>
KW  - Bildbasiertes Rendering
KW  - Display
KW  - Projektionsverfahren
KW  - Radiometrische Kompensation
KW  - Projektion
KW  - Projekor-Kamera System
KW  - Bildkorrektur
KW  - Visuelle Wahrnehmung
KW  - radiometric compensation
KW  - projection
KW  - projector-camera systems
KW  - image correction
KW  - visual perception
Y1  - 2006
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20111215-7848
ER  - 
TY  - THES
A1  - Ettinger, Ulrike
T1  - FASHIONABLY NATIONAL! ‚Volkstracht‘ als Ressource im sozialistischen Rumänien aus der Perspektive von Forschung und Kunst
N2  - Ausgehend von der vielfachen Verwertung der bäuerlichen Kleidung durch den Staat während des Sozialismus in Rumänien wird in der Arbeit das ‚Gemacht-Sein‘ von Volkstrachten befragt entlang von im untersuchten Zeitraum wirkenden Diskursen, wie dem Prozess der Modernisierung oder der Hervorhebung nationaler Werte. Die künstlerische Forschung setzt dabei auf Simulacra (Roland Barthes). Ziel war, tradierte Formate der Wissensaufbereitung und -verbreitung zu appropriieren, so auch von Strategien, die auf der Ebene von Bildern und Sprache agieren, um eine Re-Lektüre sowohl von ‚Volkstracht‘ im Sozialismus als auch von ihren Entsprechungen nach 1989 zu ermöglichen.
N2  - Based on the multiple use of peasant clothing by the government during socialism in Romania, this study questions the making of folk costumes along discourses effective in the investigated time period, such as the process of modernization or the enhancement of national values. The artistic research thereby relies on simulacra (Roland Barthes). The aim was to appropriate established formats of processing and disseminating knowledge, including strategies that operate on the level of images and language, in order to enable a re-reading of both folk costumes under socialism as well as their equivalents after 1989.
T2  - FASHIONABLY NATIONAL! ‚Folk Costume‘ as a resource in socialist Romania from the perspective of research and art
KW  - Tracht
KW  - Volkstracht
KW  - Rumänien
KW  - Sozialismus
KW  - Postkommunismus
KW  - Artefakt
KW  - Display
KW  - Künstlerische Forschung
KW  - vestimentäre Moderne
KW  - Nation-building
KW  - Postsozialismus
Y1  - 2020
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20200702-41891
ER  -