CumInCAD is a Cumulative Index about publications in Computer Aided Architectural Design
supported by the sibling associations ACADIA, CAADRIA, eCAADe, SIGraDi, ASCAAD and CAAD futures

authors Czerner, Jürgen and Gatermann, Harald
year 2002
title Modeling and Rendering Virtual Architecture by Using Fisheye-Panorama-Based Images and Lightings in HDR-Quality
source SIGraDi 2002 - [Proceedings of the 6th Iberoamerican Congress of Digital Graphics] Caracas (Venezuela) 27-29 november 2002, pp. 172-174
summary We use digitally made spherical panoramas as background for vr visualisation in architectural sceneries instead of stitched photographs (fisheye-based or serical-mirror-based). For this reason we had the idea to develop the first fisheye-based digitalscanning panorama-camera together with the manufacturer Spheron. The ultimate step in reaching optimal quality not only as a background but also as a source of lighting the background-image is taken as a HDR-image. The high-dynamic-range-technology was developed by the Californian scientist Paul Devebec. High dynamic photographs contain a broader range of information between the very bright zones down to the very dark zones - a lot more than “normal” photographs (digital and analogue), which are named LDR (low dynamic range in comparison to HDR). Some software-products in the field of cad-visualisation in virtual and augmented reality already enable the use of HDR-images and open a new field of controlling daylight and artificial light simulations with photographed backgrounds instaed of synthetic ones. The combination of digitally produced (scanned) spericalimages together with the use of HDR open a wide range of new implementation in the field of architecture, especially in combining synthetic elements in existing buildings, e.g. new interior elements in an existing historical museum).
series SIGRADI
email fb1@fh-bochum.de
full text file.pdf (1,661,096 bytes)
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100%; open Aggarwal, M. and Ahuja, N. (2001) Find in CUMINCAD High dynamic range panoramic imaging , Proc. IEEE ICCV, vol. I, 2-9
100%; open Debevec, P. (1998) Find in CUMINCAD Rendering synthetic objects into real scenes: Bridging traditional and image-based graphics with global illumination and high dynamic range photography , Proc. ACM SIGGRAPH 98, M. Cohen, Ed., 189–198
100%; open Debevec, P.E. and Malik, J. (1997) Find in CUMINCAD Recovering high dynamic range radiance maps from photographs , Proc. ACM SIGGRAPH 97, T. Whitted, Ed., 369–378
100%; open Fattal, R., Lischinski, D. and Werman, M. (2002) Find in CUMINCAD Gradient Domain High Dynamic Range Compression , Proc. ACM SIGGRAPH 2002
100%; open Gatermann, H. (2001) Find in CUMINCAD First Step to Augmented Reality: Combining VRML and Pano-Photos , CAADRIA Conference Papers, Sydney

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