Multiplexed acquisition of bidirectional texture functions for materials

Dennis den Brok; Heinz C. Steinhausen; Matthias B. Hullin; Reinhard Klein

doi:10.1117/12.2078396

13 March 2015 Multiplexed acquisition of bidirectional texture functions for materials

Dennis den Brok, Heinz C. Steinhausen, Matthias B. Hullin, Reinhard Klein

Proceedings Volume 9398, Measuring, Modeling, and Reproducing Material Appearance 2015; 93980F (2015) https://doi.org/10.1117/12.2078396
Event: SPIE/IS&T Electronic Imaging, 2015, San Francisco, California, United States

Abstract

The bidirectional texture function (BTF) has proven a valuable model for the representation of complex spatially varying material reflectance. Its image-based nature, however, makes material BTFs extremely cumbersome to acquire: in order to adequately sample high-frequency details, many thousands of images of a given material as seen and lit from different directions have to be obtained. Additionally, long exposure times are required to account for the wide dynamic range exhibited by the reflectance of many real-world materials.

We propose to significantly reduce the required exposure times by using illumination patterns instead of single light sources ("multiplexed illumination"). A BTF can then be produced by solving an appropriate linear system, exploiting the linearity of the superposition of light. Where necessary, we deal with signal-dependent noise by using a simple linear model derived from an existing database of material BTFs as a prior. We demonstrate the feasibility of our method for a number of real-world materials in a camera dome scenario.

Citation Download Citation

Dennis den Brok, Heinz C. Steinhausen, Matthias B. Hullin, and Reinhard Klein "Multiplexed acquisition of bidirectional texture functions for materials", Proc. SPIE 9398, Measuring, Modeling, and Reproducing Material Appearance 2015, 93980F (13 March 2015); https://doi.org/10.1117/12.2078396

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available