Michael Goesele
Xavier Granier
ABSTRACT
Realistic image synthesis requires both complex and realistic models of real-world light sources and efficient rendering algorithms to deal with them. In this paper, we describe a processing pipeline for dealing with complex light sources from acquisition to global illumination rendering. We carefully design optical filters to guarantee high precision measurements of real-world light sources. We discuss two practically feasible setups that allow us to measure light sources with different characteristics. Finally, we introduce an efficient importance sampling algorithm for our representation that can be used, for example, in conjunction with Photon Maps.
Supplemental Material
- ASHDOWN, I. 1993. Near-Field Photometry: A New Approach. Journal of the Illuminating Engineering Society 22, 1 (Winter), 163--180.Google Scholar
Cross Ref
- ASHDOWN, I. 1995. Near-Field Photometry: Measuring and Modeling Complex 3-D Light Sources. In ACM SIGGRAPH 95 Course Notes - Realistic Input for Realistic Images, ACM, 1--15.Google Scholar
- DEBEVEC, P., AND MALIK, J. 1997. Recovering High Dynamic Range Radiance Maps from Photographs. In Computer Graphics Proceedings (ACM SIGGRAPH 97), ACM, 369--378. Google ScholarDigital Library
- GOESELE, M., HEIDRICH, W., LENSCH, H., AND SEIDEL, H.-P. 2000. Building a Photo Studio for Measurement Purposes. In Proc. of the 5th VMV Conference, 231--238.Google Scholar
- GORTLER, S. J., GRZESZCZUK, R., SZELINSKI, R., AND COHEN, M. F. 1996. The Lumigraph. In Computer Graphics Proceedings (ACM SIGGRAPH 96), ACM, 43--54. Google ScholarDigital Library
- HALLE, M. W. 1994. Holographic stereograms as discrete imaging systems. In Practical Holography VIII, SPIE, vol. 2176, 73--84.Google Scholar
- HEIDRICH, W., AND GOESELE, M. 2001. Image-based measurement of light sources with correct filtering. Tech. Rep. TR-2001-08, Department of Computer Science, The University of British Columbia.Google Scholar
- HEIDRICH, W., KAUTZ, J., SLUSALLEK, P., AND SEIDEL, H.-P. 1998. Canned lightsources. In Rendering Techniques '98, Eurographics, 293--300.Google ScholarCross Ref
- JENKINS, D. R., AND MÖNCH, H. 2000. Source Imaging Goniometer Method of Light Source Characterization for Accurate Projection System Design. In Proc. of SID Conference, 862--865.Google ScholarCross Ref
- JENSEN, H. W. 1995. Importance Driven Path Tracing Using the Photon Map. In Rendering Techniques '95 (Proceedings of the Sixth Eurographics Workshop on Rendering), Springer-Verlag, New York, NY, P. M. Hanrahan and W. Purgathofer, Eds., Eurographics, 326--335.Google Scholar
- JENSEN, H. W. 1996. Global Illumination Using Photon Maps. In Rendering Techniques '96 (Proceedings of the Seventh Eurographics Workshop on Rendering), Springer-Verlag/Wien, New York, NY, Eurographics, 21--30. Google ScholarDigital Library
- JENSEN, H. W. 2001. A practical guide to global illumination using photon mapping. In ACM SIGGRAPH 2001 Course Notes CD-ROM, ACM SIGGRAPH, ACM. Course 38. Google ScholarDigital Library
- JENSEN, H. W. 2001. Realistic Image Synthesis Using Photon Mapping. A. K. Peters, Natick, MA. Google ScholarDigital Library
- KELLER, A., AND WALD, I. 2000. Efficient importance sampling techniques for the photon map. In Proceedings of Vision Modelling and Visualization 2000, 271--279.Google Scholar
- LAFORTUNE, E. P., AND WILLEMS, Y. D. 1993. Bi-directional Path Tracing. In Proceedings of Third International Conference on Computational Graphics and Visualization Techniques (Compugraphics '93), 145--153.Google Scholar
- LASTRA, M., UREA, C., REVELLES, J., AND MONTES, R. 2002. A density estimation technique for radiosity. In Ibero-American Symposium in Computer Graphics (SIACG'2002).Google Scholar
- LEVOY, M., AND HANRAHAN, P. 1996. Light field rendering. In Computer Graphics Proceedings (ACM SIGGRAPH 96), ACM, 31--42. Google ScholarDigital Library
- PITMAN, J. 1992. Probability. Springer.Google Scholar
- ROBERTSON, M. A., BORMAN, S., AND STEVENSON, R. L. 1999. Dynamic Range Improvement Through Multiple Exposures. In Proc. of the Int. Conf. on Image Processing (ICIP'99), IEEE, 159--163.Google ScholarCross Ref
- RYKOWSKI, R. F., AND WOOLEY, C. B. 1997. Source Modeling for Illumination Design. In Lens Design, Illumination, and Optomechanical Modeling, SPIE, vol. 3130, 204--208.Google Scholar
- SIEGEL, M. W., AND STOCK, R. D. 1996. A General Near-Zone Light Source Model and its Application to Computer Automated Reflector Design. SPIE Optical Engineering 35, 9 (September), 2661--2679.Google Scholar
- VERBECK, C. P., AND GREENBERG, D. P. 1984. A comprehensive light source description for computer graphics. IEEE Computer Graphics & Applications 4, 7 (July), 66--75.Google ScholarDigital Library
- WALTER, B., HUBBARD, P. M., SHIRLEY, P., AND GREENBERG, D. P. 1997. Global illumination using local linear density estimation. ACM Transactions on Graphics 16, 3 (July), 217--259. Google ScholarDigital Library
- WARD, G. 1991. Graphics Gems II. Morgan Kauffman Publishers Inc., San Francisco, CA, USA, ch. Real Pixels, 80--83. Google ScholarDigital Library
Index Terms
- Accurate light source acquisition and rendering
Recommendations
Accurate light source acquisition and rendering
Realistic image synthesis requires both complex and realistic models of real-world light sources and efficient rendering algorithms to deal with them. In this paper, we describe a processing pipeline for dealing with complex light sources from ...
Linear light source reflectometry
This paper presents a technique for estimating the spatially-varying reflectance properties of a surface based on its appearance during a single pass of a linear light source. By using a linear light rather than a point light source as the illuminant, ...
Multiple light field rendering
GRAPHITE '03: Proceedings of the 1st international conference on Computer graphics and interactive techniques in Australasia and South East AsiaA light field is a 4D function describing the radiance across a boundary between the volume containing a scene, and the disjoint volume in which the eyepoint may be placed. Light field rendering is the process of rendering novel views of a scene ...
Comments