Tuesday, November 29, 2011

Spotted: A local image reconstruction algorithm for stochastic rendering

On blurring reconstruction for stochastic rendering. I've worked with David, Peter and Eric. 

A local image reconstruction algorithm for stochastic rendering

Peter Shirley, Timo Aila, Jonathan Cohen, Eric Enderton, Samuli Laine, David Luebke, Morgan McGuire

Stochastic renderers produce unbiased but noisy images of scenes that include the advanced camera effects of motion and defocus blur and possibly other effects such as transparency. We present a simple algorithm that selectively adds bias in the form of image space blur to pixels that are unlikely to have high frequency content in the final image. For each pixel, we sweep once through a fixed neighborhood of samples in front to back order, using a simple accumulation scheme.

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