Efficient GPU-based texture interpolation using uniform B-splines

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This article presents uniform B-spline interpolation, completely contained on the graphics processing unit (GPU). This implies that the CPU does not need to compute any lookup tables or B-spline basis functions. The cubic interpolation can be decomposed into several linear interpolations [Sigg and Hadwiger 05], which are hard-wired on the GPU and therefore very fast. Here it is demonstrated that the cubic B-spline basis function can be evaluated in a short piece of GPU code without any conditional statements. Source code is available online.
Original languageEnglish
Pages (from-to)61-69
JournalJournal of Graphics Tools
Issue number4
Publication statusPublished - 2008


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