Anti-aliasing with Stratified B-spline Filters of Arbitrary Degree
| dc.contributor.author | Gamito, Manuel N. | en_US |
| dc.contributor.author | Maddock, Steve C. | en_US |
| dc.date.accessioned | 2015-02-21T12:09:24Z | |
| dc.date.available | 2015-02-21T12:09:24Z | |
| dc.date.issued | 2006 | en_US |
| dc.description.abstract | A simple and elegant method is presented to perform anti-aliasing in raytraced images. The method uses stratified sampling to reduce the occurrence of artefacts in an image and features a B-spline filter to compute the final luminous intensity at each pixel. The method is scalable through the specification of the filter degree. A B-spline filter of degree one amounts to a simple anti-aliasing scheme with box filtering. Increasing the degree of the B-spline generates progressively smoother filters. Computation of the filter values is done in a recursive way, as part of a sequence of Newton-Raphson iterations, to obtain the optimal sample positions in screen space. The proposed method can perform both anti-aliasing in space and in time, the latter being more commonly known as motion blur. We show an application of the method to the ray casting of implicit procedural surfaces. | en_US |
| dc.description.number | 2 | en_US |
| dc.description.seriesinformation | Computer Graphics Forum | en_US |
| dc.description.volume | 25 | en_US |
| dc.identifier.doi | 10.1111/j.1467-8659.2006.00932.x | en_US |
| dc.identifier.issn | 1467-8659 | en_US |
| dc.identifier.pages | 163-172 | en_US |
| dc.identifier.uri | https://doi.org/10.1111/j.1467-8659.2006.00932.x | en_US |
| dc.publisher | The Eurographics Association and Blackwell Publishing Ltd | en_US |
| dc.title | Anti-aliasing with Stratified B-spline Filters of Arbitrary Degree | en_US |