Analysis of the Modification Method for Cook-Torrance Model

Ming Zhe Li; Ji Guang Zhao; Yun Ting Zhou

doi:10.4028/www.scientific.net/AMM.556-562.4240

Paper Titles

Analysis of Structural Deformation and Mechanical Adaptive Adjustment in Engineering Practice of Costume Design
p.4223

PID Algorithm Application in the Mechanical Sealing Based on BP Neural Network
p.4228

Design on Diffuse Optical Instrument Based on Computer Simulation Technology
p.4232

Analysis of the Modification Method for Cook-Torrance Model
p.4240

A Spheriform Quantization Method Based on Sub-Region Inherent Dimension
p.4244

Scheduling of Discrete Manufacturing Process for Energy Saving
p.4248

Research on Fixture Locating Error Verification Based on Statistics Method
p.4255

Target Scale Adaptation Based on Corner Registration
p.4260

HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 556-562Analysis of the Modification Method for...

Analysis of the Modification Method for Cook-Torrance Model

Abstract:

A visible difference exists between the measured Bidirectional Reflectance Distribution Function (BRDF) and the modeled BRDF. The Cook-Torrance model is chosen to simulate the BRDF for its popularity and flexibility. Taking aluminum for example, this paper analyzes the difference between the experiment data and the simulation data. There is a great and remarkable difference in the situation of specular reflection by comparison in this paper. Consequently, trigonometric factor, numerator and denominator addition factors and scaling factor are brought in the Cook-Torrance model. Finally, a modified Cook-Torrance model is presented. The simulation data of the modified Cook-Torrance model show that it’s more suitable for the analysis of the aluminum BRDF than the classic Cook-Torrance model.

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Applied Mechanics and Materials (Volumes 556-562)

Pages:

4240-4243

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.556-562.4240

Citation:

Cite this paper

Online since:

May 2014

Authors:

Ming Zhe Li*, Ji Guang Zhao, Yun Ting Zhou

Keywords:

Bidirectional Reflectance Distribution Function, Cook-Torrance Model, Modification Method, Specular Reflection Line

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

* - Corresponding Author

References

[1] Nicodemus F E. Reflectance nomenclature and directional reflectance and emissivity[J]. Applied Optics, 1970, 9(6): 1474-1475.

DOI: 10.1364/ao.9.001474

Google Scholar

[2] Torrance K E, Sparrow E M. Theory for off-specular reflection from roughened surfaces[J]. JOSA, 1967, 57(9): 1105-1112.

DOI: 10.1364/josa.57.001105

Google Scholar

[3] Montes Soldado R, Ureña Almagro C. An Overview of BRDF Models[J]. (2012).

Google Scholar

[4] Beckmann P, Spizzichino A. The scattering of electromagnetic waves from rough surfaces[J]. Norwood, MA, Artech House, Inc., 1987, 511 p., 1987, 1.

Google Scholar

[5] Cook R L, Torrance K E. A reflectance model for computer graphics[J]. ACM Transactions on Graphics (TOG), 1982, 1(1): 7-24.

DOI: 10.1145/357290.357293

Google Scholar

[6] Matusik W. A data-driven reflectance model[D]. University of North Carolina, Chapel Hill, (2003).

Google Scholar

[7] Born M, Wolf E. Principles of Optics, (expanded)[J]. Cambridge University Press, UK, 1999: 413.

Google Scholar