A new method to approximate the volume-rendering equation using wavelet bases and piecewise polynomials.

Markus H. Gross Lars Lippert A. Dreger Rolf M. Koch A new method to approximate the volume-rendering equation using wavelet bases and piecewise polynomials. 47-62 1995 19 Computers & Graphics 1 http://dx.doi.org/10.1016/0097-8493(94)00121-E db/journals/cg/cg19.html#GrossLDK95