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Ray Tracing Method Based on Spectral Distribution for Reproducing a Realistic Image  

Lee Myong-Young (School of Electrical Engineering and Computer Science, Kyungpook National University)
Lee Cheol-Hee (Department of Computer Engineering, Andong Univ.)
Lee Ho-Keun (School of Electrical Engineering and Computer Science, Kyungpook National University)
Ha Yeong-Ho (School of Electrical Engineering and Computer Science, Kyungpook National University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea SP / v.41, no.1, 2004 , pp. 37-46 More about this Journal
Abstract
In this paper, we propose an improved reproduction algorithm for a realistic image of the real scene based on the spectral distribution of lights and objects. The proposed method for the realistic image is focused on a more accurate reproduction of an image incident on the sight of the viewer. At first, to reproduce an image accurately incident on a sight of viewer, we used the backward ray tracing method based on spectral distribution of object and illuminant representing its physical characteristic used in real. Next, we propose utilizing the improved shading model of the reproduction algorithm of realistic image by applying Bouguer-Beer's law to consider an optical absorptive property of transparent objects. We also define a new ambient light term which is considered the diffuse reflection of neighboring objects instead of constant ambient light. The simulation results show that the proposed algorithm can reproduce the visually similar image with a scene incident on a sight of viewer.
Keywords
Bouguer-Beer's law;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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1 Robert L. Cook, 'A Reflectance Model for Computer Graphics,' Computer Graphics, vol, 15, no. 3, Aug. 1981
2 Andrew S. Glassner, 'An Introduction to Ray Tracing,' Morgan Kaufmann Publishers, Inc.
3 James F. Blinn, 'Models of Light Reflection for Computer Synthesized Pictures,' Computer Graphics, Proceedings, Annual Conference Series ACM SIGGRAPH, pp. 192 - 198   DOI
4 Roy S. Berns, Principles of Color Technology, Wiley Interscience
5 J. Arvo, 'Backward Ray Tracing,' Tutorial Notes on the Developments in Ray Tracing SIGGRAPH 86, Aug. 1986
6 Andrew Woo, Pierre Poulin, and Alain Fournier, 'A Survey of Shadow Algorithms,' IEEE Computer Graphics and Applications, vol. 10, no. 6, pp. 13 - 32, Nov. 1990   DOI   ScienceOn
7 K. Torrance and E. Sparrow, 'Theory for Off-Specular Reflection from Rough Surfaces,' Journal of the Optical Society of America, vol. 57, no. 9, pp. 1105 - 1114, 1967   DOI
8 Whitted J. T, 'An Improved Illumination Model for Shaded Display,' Comm. ACM, vol. 23, no. 6, pp. 342 - 349, June. 1980   DOI   ScienceOn
9 Phong B, 'Illumination for Computer- Generated Pictures,' Comm. ACM, vol. 18, no. 6, pp. 311-317, 1975   DOI   ScienceOn
10 Stephen R. Marschner, Stephen H.Westin, Eric P. F. Lafortune, and Kenneth E. Torrance, 'Image-based Bidirectional Reflectance Distribution Function Measurement,' Applied Optics, 2000 Optical Society of America, vol. 39, no. 16, pp. 2592 - 2600, June. 2000   DOI
11 Thomas A. Funkhouser, 'A Visibility Algorithm for Hybrid Geometry- and Image-based Modeling and Rendering,' Computers & Graphics, vol. 23, pp. 719 - 728, 1999   DOI   ScienceOn
12 Tein-tsin Wong, Pheng-ann heng, Siu-Hang, and Wai-yin, 'Illumination of Image-Based Objects, 'The Journal of Visualization and Computer Animation, vol. 9, pp. 113 - 127, April. 1998   DOI   ScienceOn