Usability of Digital Cameras for Verifying Physically Based ...

matter are calculated in XYZ space. The details of this work are explained in
[UW06].
Verification in general is quite often neglected in the development process.
We composed an extensive state of the art report on the topic of “Verification of
Physically Based Rendering Algorithms” (see [UWP05] and [UWP06]) in order
to call attention to the importance of this field.
1.5 Thesis Outline
This thesis is organized as follows: Chapter 2 presents an overview on verific-
ation techniques, from the well-known Cornell Box to recent developments. A
short introduction to the field of colorimetry is given in chapter 3. Chapters 4
and 5 describe the internal functionalities of a digital camera and a physically
based rendering system as far as they are used in this thesis, respectively. The
procedure of data acquisition and processing is outlined in chapter 6. Chapter 7
is dedicated to the main topic of this thesis – various approaches of using a di-
gital camera for verifying a physically based rendering system. The question of
why we rely on spectral rendering instead of using XYZ space as internal color
space is answered in chapter 8. Conclusions are drawn in chapter 9 along with
a discussion of future work. Appendix A explains photometric and radiometric
quantities that are used throughout the thesis, whereas appendix B describes vari-
ous types of measurement devices. Several instruments that were used for data
acquisition are illustrated in appendix C. Appendix D gives a number of websites
that contain publicly available validation data. Detailed results of the tests made
in conjunction with this thesis are listed in appendix E.
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