Paper Info
Title
Dirty glass: rendering contamination on transparent surfaces
Abstract
Rendering of clean transparent objects has been well studied in computer graphics. However, real-world transparent objects are seldom clean—their surfaces have a variety of contaminants such as dust, dirt, and lipids. These contaminants produce a number of complex volumetric scattering effects that must be taken into account when creating photorealistic renderings. In this paper, we take a step toward modeling and rendering these effects. We make the assumption that the contaminant is an optically thin layer and construct an analytic model following results in radiative transport theory and computer graphics. Moreover, the spatial textures created by the different types of contamination are also important in achieving visual realism. To this end, we measure the spatially varying thicknesses and the scattering parameters of a number of glass panes with various types of dust, dirt, and lipids. We also develop a simple interactive synthesis tool to create novel instances of the measured contamination patterns. We show several results that demonstrate the use of our scattering model for rendering 3D scenes, as well as modifying real 2D photographs.
Year
DOI
Venue
2007
10.2312/EGWR/EGSR07/159-170
Rendering Techniques
Keywords
Field
DocType
real-world transparent object,clean transparent object,scattering model,analytic model,complex volumetric,transparent surface,scattering parameter,measured contamination pattern,photorealistic rendering,different type,computer graphics,dirty glass,computer graphic
Computer vision,Computer graphics (images),Computer science,3D rendering,Dirt,Artificial intelligence,Scattering,Radiative transfer,Image-based modeling and rendering,Rendering (computer graphics),Computer graphics,Contamination
Conference
Citations 
PageRank 
References 
11
0.75
23
Authors
4
Name
Order
Citations
PageRank
Jinwei Gu168739.49
Ravi Ramamoorthi24481237.21
Peter N. Belhumeur3122421001.27
Shree K. Nayar4123941538.46