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E-raamat: Light and Skin Interactions: Simulations for Computer Graphics Applications

(Senior Computer Scientist, Visual Computing Lab at Adobe Systems Inc.), (Associate Professor and leader of the Natural Phenomena Simulation Group, University of Waterloo)
  • Formaat: EPUB+DRM
  • Ilmumisaeg: 04-Mar-2010
  • Kirjastus: Morgan Kaufmann Publishers In
  • Keel: eng
  • ISBN-13: 9780123786449
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  • Formaat: EPUB+DRM
  • Ilmumisaeg: 04-Mar-2010
  • Kirjastus: Morgan Kaufmann Publishers In
  • Keel: eng
  • ISBN-13: 9780123786449
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Light and Skin Interactions immerses you in one of the most fascinating application areas of computer graphics: appearance simulation. The book first illuminates the fundamental biophysical processes that affect skin appearance, and reviews seminal-related works aimed at applications in life and health sciences. It then examines four exemplary modeling approaches as well as definitive algorithms that can be used to generate realistic images depicting skin appearance. On the companion website, you will find complete code and data sources for the BioSpec model, which is considered to be the most comprehensive first principles model in the field. Despite its wide scope of simulation approaches, the book`s content is presented in a concise manner, focusing on relevant practical aspects. What`s more, these approaches can be successfully applied to a wide range of additional materials, such as eye tissue, hair, and water.

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A comprehensive guide to simulating human skin that pushes research and graphics into vibrant new worlds!
Acknowledgements v
List of figures
xi
Nomenclature xix
Acronyms xxiii
Chapter 1 Introduction
1(4)
Chapter 2 Light, optics, and appearance
5(28)
2.1 Light as radiation
5(3)
2.2 Optics concepts
8(5)
2.3 Light interactions with matter
13(6)
2.3.1 Emission
13(2)
2.3.2 Scattering
15(1)
2.3.3 Absorption
16(3)
2.4 Radiometric quantities
19(1)
2.5 Tissue optics definitions and terminology
20(5)
2.6 Measurement of appearance
25(8)
2.6.1 Measuring the spectral distribution of light
27(2)
2.6.2 Measuring the spatial distribution of light
29(4)
Chapter 3 Image-synthesis context
33(28)
3.1 Global light transport
35(6)
3.1.1 Monte Carlo concepts
37(1)
3.1.2 Path tracing overview
38(3)
3.2 Local light transport
41(7)
3.2.1 The Kubelka-Munk methods
42(1)
3.2.2 Monte Carlo methods
43(5)
3.3 Techniques for model evaluation
48(8)
3.3.1 Actual and virtual spectrophotometry
48(5)
3.3.2 Actual and virtual goniophotometry
53(3)
3.4 Color conversion
56(5)
Chapter 4 Bio-optical properties of human skin
61(20)
4.1 Structural and biophysical characteristics
61(6)
4.2 Spectral signatures
67(2)
4.3 Scattering profiles
69(5)
4.4 Interactions with invisible light
74(7)
4.4.1 Ultraviolet domain
74(3)
4.4.2 Infrared domain
77(2)
4.4.3 Terahertz domain
79(2)
Chapter 5 Simulations in health and life sciences
81(18)
5.1 Scope of applications
82(1)
5.2 Kubelka-Munk theory-based models
83(3)
5.3 Diffusion theory-based models
86(3)
5.4 Radiative transport models
89(2)
5.5 Monte Carlo-based models
91(8)
Chapter 6 Biophysically inspired approach
99(14)
6.1 The multiple-layer scattering model
100(6)
6.1.1 Overview
100(1)
6.1.2 Scattering simulation
101(2)
6.1.3 Implementation issues
103(1)
6.1.4 Strengths and limitations
104(1)
6.1.5 Extensions
105(1)
6.2 The discrete-ordinate model
106(7)
6.2.1 Overview
106(1)
6.2.2 Scattering simulation
107(2)
6.2.3 Implementation issues
109(1)
6.2.4 Strengths and limitations
110(3)
Chapter 7 First principles approach
113(16)
7.1 Overview
114(1)
7.2 Scattering simulation
114(4)
7.2.1 Surface reflection
116(1)
7.2.2 Subsurface reflection and transmission
117(1)
7.3 Absorption simulation
118(3)
7.4 Implementation issues
121(1)
7.5 Strengths and limitations
121(8)
Chapter 8 Diffusion approximation approach
129(12)
8.1 Overview
130(1)
8.2 Scattering simulation
131(2)
8.3 Implementation issues
133(1)
8.4 Strengths and limitations
134(2)
8.5 Evolution of diffusion approximation-based models
136(5)
Chapter 9 Simulation challenges
141(6)
9.1 Input data issues
141(2)
9.2 Modeling issues
143(1)
9.3 Evaluation issues
143(2)
9.4 Performance issues
145(2)
Chapter 10 Beyond computer graphics applications
147(2)
References 149(18)
Index 167
Gladimir V. G. Baranoski received a Ph.D. in Computer Science from the University of Calgary in 1998. He is currently an Associate Professor at the School of Computer Science and the leader of the Natural Phenomena Simulation Group at the University of Waterloo, Canada. He is also a senior member of IEEE and a member of the editorial board of the Elsevier journal Computers & Graphics. Aravind Krishnaswamy received his BMath and MMath in Computer Science from the University of Waterloo. He is currently a Senior Computer Scientist with the Visual Computing Lab at Adobe Systems Inc. During his time there, he has been involved in the research and development of real-time photo realistic image synthesis technology (incorporated into Adobe Photoshop®, Bridge®, and After Effects®) as well as the development of new material models.