Layered Reconstruction for Defocus and Motion Blur
Jacob Munkberg, Karthik Vaidyanathan, Jon Hasselgren, Petrik Clarberg, Tomas Akenine-Möller
In Computer Graphics Forum, 33(4), 2014.
Abstract: Light field reconstruction algorithms can substantially decrease the noise in stochastically rendered images. Recent algorithms for defocus blur alone are both fast and accurate. However, motion blur is a considerably more complex type of camera effect, and as a consequence, current algorithms are either slow or too imprecise to use in high quality rendering. We extend previous work on real-time light field reconstruction for defocus blur to handle the case of simultaneous defocus and motion blur. By carefully introducing a few approximations, we derive a very efficient sheared reconstruction filter, which produces high quality images even for a low number of input samples. Our algorithm is temporally robust, and is about two orders of magnitude faster than previous work, making it suitable for both real-time rendering and as a post-processing pass for offline rendering.
Keyword(s): Categories and Subject Descriptors (according to ACM CCS), I.3.3 [Computer Graphics]: Three-Dimensional Graphics and Realism—Display Algorithms
@article{Munkberg:2014:LRF,
author = {Jacob Munkberg and Karthik Vaidyanathan and Jon Hasselgren and Petrik Clarberg and Tomas Akenine-Möller},
title = {Layered Reconstruction for Defocus and Motion Blur},
journal = {Computer Graphics Forum},
volume = {33},
number = {4},
pages = {81--92},
year = {2014},
}
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