Title
Optimizing Control Variate Estimators For Rendering
Abstract
We present the Optimizing Control Variate (OCV) estimator a new estimator for Monte Carlo rendering. Based upon a deterministic sampling framework, OCV allows multiple importance sampling functions to be combined in one algorithm. Its optimizing nature addresses a major problem with control variate estimators for rendering: users supply a generic correlated function which is optimized for each estimate, rather than a single highly tuned one that must work well everywhere. We demonstrate OCV with both direct lighting and irradiance-caching examples, showing improvements in image error of over 35% in some cases, for little extra computation time.
Year
DOI
Venue
2006
10.1111/j.1467-8659.2006.00954.x
COMPUTER GRAPHICS FORUM
Keywords
Field
DocType
direct lighting, deterministic mixture sampling, control variates
Mathematical optimization,Importance sampling,Computer science,Control variates,Sampling (statistics),Rendering (computer graphics),Monte carlo rendering,Computation,Estimator
Journal
Volume
Issue
ISSN
25
3
0167-7055
Citations 
PageRank 
References 
5
0.76
7
Authors
5
Name
Order
Citations
PageRank
ShaoHua Fan1847.48
Stephen Chenney243836.67
Bo Hu381.17
Kam-Wah Tsui4123.37
Yu-Chi Lai511717.42