Volume 5 Number 10 (Oct. 2010)
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JSW 2010 Vol.5(10): 1068-1076 ISSN: 1796-217X
doi: 10.4304/jsw.5.10.1068-1076

Color Map and Polynomial Coefficient Map Mapping

Huijian Han1, 2, 3, Caiming Zhang1, 2, 3
1School of Computer Science & Technology, Shandong University, Jinan ,China
2School of Computer Science & Technology, Shandong Economic University, Jinan ,China
3Shandong Prov. Key Lab of Digital Media Technology, Jinan ,China

Abstract—In computer graphics, texture mapping is an important means to enhance the realism of model. Traditional texture image always was captured under special light condition. If the lighting in virtual environment is different from the texture image, the result of rendering will be incorrect and unrealistic. This paper proposes an image-based method to fit the reflection mode by a quadratic multinomial. The coefficients of quadratic multinomial will be gained from BTFs and are stored for every texel as polynomial coefficient maps. A picture is taken under well-proportioned environment light as a color map, which the chromaticity is saved. The method can interpolate light effective under varying virtual lighting conditions by color map and coefficient maps and represent the variation of luminance and color for each texel independently. Color map and polynomial coefficient map make texture mapping become more realistic, simple and dynamic.

Index Terms—color map, polynomial coefficient map, iamge-based , texture mapping.

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Cite: Huijian Han, Caiming Zhang, "Color Map and Polynomial Coefficient Map Mapping," Journal of Software vol. 5, no. 10, pp. 1068-1076, 2010.

General Information

ISSN: 1796-217X (Online)
Frequency: Monthly
Editor-in-Chief: Prof. Antanas Verikas
Executive Editor: Ms. Yoyo Y. Zhou
Abstracting/ Indexing: DBLP, EBSCO, ProQuest, INSPEC, ULRICH's Periodicals Directory, WorldCat, etc
E-mail: jsw@iap.org
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