High-order wavelets for hierarchical refinement in inverse rendering

Subtitle:In ACM SIGGRAPH 2013 Posters(SIGGRAPH '13). ACM, New York, NY, USA, , Article 99 , 1 pages

It is common to use factored representation of visibility, lighting and BRDF in inverse rendering. Current techniques use Haar wavelets to calculate these triple product integrals efficiently [Ng et al. 2004]. Haar wavelets are an ideal basis for the piecewise constant visibility function, but suboptimal for the smoother lighting and material functions. How can we leverage compact high-order wavelet bases to improve efficiency, memory consumption and accuracy of an inverse rendering algorithm? If triple product integrals can be efficiently calculated for higher-order wavelets, the reduction in coefficients will reduce the number of calculations, therefore improving performance and memory usage. Some BRDFs can be stored five times more compactly.

ISBN:978-1-4503-2342-0

Publication year:2013

Accessibility:Open