“Practical acquisition of translucent liquids using polarized transmission imaging” by Kim and Ghosh
Conference:
Type(s):
Entry Number: 84
Title:
- Practical acquisition of translucent liquids using polarized transmission imaging
Presenter(s)/Author(s):
Abstract:
We present a novel, practical method for acquisition of optical properties of common everyday translucent liquids using a simple acquisition setup involving an LCD panel. Previous work on acquiring liquids has required specialized procedures such as dyeing with a fluorescent agent [Ihrke et al. 2005] for volumetric reconstruction of liquid flow, or dilution of liquid in a specialized water tank [Narasimhan et al. 2006] for acquiring its optical properties for rendering. In this work, we build upon the recent work of Kim et al. [2017] who employ direct transmission imaging for single-view reconstruction of axially-symmetric transparent objects such as glasses, goblets, carafes, etc. We observe that many optically interesting everyday liquids such as cocktails, juices, whiskey, wine, oil, etc., are commonly contained in such axially-symmetric transparent containers. Hence, we propose a much more natural acquisition process where we image the transmission of backlit illumination through a liquid volume contained in such a glass object to estimate its optical properties including its absorption and scattering coefficients, and refractive index. Figure 1 demonstrates renderings of various acquired translucent liquids with our proposed method separated into two types: those exhibiting only absorption (a), and those that exhibit both absorption and scattering (b).
