Usability of Digital Cameras for Verifying Physically Based ...

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71 The GretagMacbeth Spectroscan T allows automatic measurement of color charts. . . . . . . . . . . . . . . . . . . . . . . . . . . . 104 xiii
List of Tables 1 Camera settings that were chosen for taking the photographs. . . . 46 2 Median and mean values of standard deviations of all 140 patches for all six test cases, for R, G, and B channel, respectively. . . . . 54 3 Standard deviation of all 80 submatrices for D65 and dimmer set- ting 100%. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 4 Standard deviation of all 80 submatrices for D65 and dimmer set- ting 50%. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 5 Standard deviation of all 80 submatrices for D65 and dimmer set- ting 25%. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 6 Standard deviation of all 80 submatrices for D65 and dimmer set- ting 15%. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 7 Camera settings at 100%, 50%, 25% and 15%. . . . . . . . . . . . 68 8 Interval length of R, G and B values of dark border patches at 100%, 50%, 25% and 15%. . . . . . . . . . . . . . . . . . . . . . 68 9 Minimum and maximum, median, mean values, and standard deviations of L ∗ a ∗ b ∗ difference values for using the camera’s color space. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71 10 Minimum and maximum, median, mean values and standard deviations of L ∗ a ∗ b ∗ difference values for using an ICC profile. . . . 74 11 Minimum and maximum, median, mean values, and standard deviations of L ∗ a ∗ b ∗ difference values for the adapted mapping for linear polynomials (1-4), respectively. . . . . . . . . . . . . . . . 79 12 Minimum and maximum, median, mean values, and standard deviations of L ∗ a ∗ b ∗ differences for the adapted mapping for higher order polynomials (5-11), respectively. . . . . . . . . . . . . . . . 81 13 Minimum and maximum, median, mean values, and standard deviations of the residuals of R, G, and B values with respect to the values of the RAW image. . . . . . . . . . . . . . . . . . . . . . 84 14 Qualitative comparison of four approaches (analyzed in section 7) on using a digital camera for verification purposes. . . . . . . . . 94 15 Radiometric and photometric quantities. . . . . . . . . . . . . . . 99 16 L ∗ a ∗ b ∗ differences for all 140 patches of the three test cases for using the camera’s color space. . . . . . . . . . . . . . . . . . . . 110 xiv
Page 1 and 2: DISSERTATION Usability of Digital C
Page 3 and 4: Kurzfassung Physically Based Render
Page 5 and 6: Acknowledgements I want to thank We
Page 7 and 8: 3 Colorimetry 32 3.1 Color Spaces .
Page 9 and 10: E.5 Treating the Camera as a Black
Page 11 and 12: 20 The CIE 1931 chromaticity diagra
Page 13: 53 (a) Density plot for using the c
Page 17 and 18: 1 Introduction In recent years, a l
Page 19 and 20: 1.3 Applications of Physically Base
Page 21 and 22: matter are calculated in XYZ space.
Page 23 and 24: Figure 2: A photograph of the real
Page 25 and 26: (a) Photo (b) Default (c) 2 Bounces
Page 27 and 28: y a light source on top of the cube
Page 29 and 30: Figure 7: Points A to F were select
Page 31 and 32: Figure 9: A difference image of pho
Page 33 and 34: Figure 12: From top to bottom: a hi
Page 35 and 36: (a) Figure 13: (a) Left side: measu
Page 37 and 38: Figure 14: Six photocells were posi
Page 39 and 40: Figure 16: The left image shows a r
Page 41 and 42: (a) (b) Figure 18: (a) The validati
Page 43 and 44: shape of the caustic. 2.3 Analytica
Page 45 and 46: two test cases, but instead of the
Page 47 and 48: segments of the sphere and its actu
Page 49 and 50: of luminance [GJB80]. In XYZ color
Page 51 and 52: where L ∗ � � Y m = 903.3 Yn
Page 53 and 54: (a) (b) Figure 21: Chromaticity dia
Page 55 and 56: 4 Digital Cameras Pattanaik et al.
Page 57 and 58: Figure 23: The RAW image data is co
Page 59 and 60: 5 Physically Based Rendering System
Page 61 and 62: see section 7.4. By avoiding XYZ sp
Page 63 and 64: Figure 27: The sensor plane marking
Page 65 and 66:
(a) (b) Figure 30: (a) ColorChecker
Page 67 and 68:
available on MAC systems. We chose
Page 69 and 70:
(a) (b) (c) Figure 34: Standard dev
Page 71 and 72:
Figure 35: Eighty measurement spots
Page 73 and 74:
(a) (b) (c) (d) Figure 37: (a) Lumi
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(a) (b) Figure 40: (a) Luminance di
Page 77 and 78:
i \ j 0 1 2 3 4 5 6 7 8 9 10 11 12
Page 79 and 80:
(a) (b) (c) (d) Figure 43: (a) Lumi
Page 81 and 82:
(a) (b) Figure 46: Standard deviati
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(a) (b) Figure 49: (a) The measurem
Page 85 and 86:
of each patch using a spectrophotom
Page 87 and 88:
Figure 51: L ∗ a ∗ b ∗ differ
Page 89 and 90:
(a) (b) Figure 53: (a) Density plot
Page 91 and 92:
(a) (b) (c) Figure 55: Histograms o
Page 93 and 94:
Using an ICC profile obviously impr
Page 95 and 96:
(a) (b) (c) (d) Figure 58: Histogra
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5 6 7 8 9 10 11 Min 0.50 0.49 0.13
Page 99 and 100:
in the light transport simulation o
Page 101 and 102:
the internal data of a camera and w
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etter results: One can measure the
Page 105 and 106:
Figure 62: A Mathematica generated
Page 107 and 108:
their internal color space. This mi
Page 109 and 110:
Figure 66: Surface reflectance valu
Page 111 and 112:
as bad compared to other methods. S
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in sufficient detail. The approach
Page 115 and 116:
A Radiometric and Photometric Quant
Page 117 and 118:
B.6 Goniophotometer A goniophotomet
Page 119 and 120:
C.3 Color Chart Figure 68: A Konica
Page 121 and 122:
D Web Resources of Validation Data
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8 bit jpg 16 bit 29 11.58 11.52 11.
Page 125 and 126:
8 bit jpg 16 bit 91 17.21 17.11 17.
Page 127 and 128:
E.2 Using an ICC Profile 8 bit jpg
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8 bit jpg 16 bit 62 16.10 16.08 16.
Page 131 and 132:
8 bit jpg 16 bit 124 11.08 10.89 11
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1 2 3 4 31 9.10 3.61 4.26 5.96 32 8
Page 135 and 136:
1 2 3 4 93 6.25 4.11 4.05 8.69 94 4
Page 137 and 138:
E.4 Adaptive Mapping - Higher Order
Page 139 and 140:
5 6 7 8 9 10 11 62 3.42 2.52 2.51 2
Page 141 and 142:
5 6 7 8 9 10 11 124 2.10 2.14 2.96
Page 143 and 144:
R G B 31 -38.94 -25.49 29.26 32 -9.
Page 145 and 146:
R G B 93 103.86 109.28 55.06 94 31.
Page 147 and 148:
References [3dS06] 3D Studio Max: w
Page 149 and 150:
[HLR00] Guowei Hong, M. Ronnier Luo
Page 151 and 152:
Color Imaging Conference, pages 250
Page 153:
[VMKK00] V. Volevich, K. Myszkowski
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