Sciweavers

Share
ICIP
2006
IEEE

Efficient Reconstruction of Hexagonally Sampled Data using Three-Directional Box-Splines

13 years 1 months ago
Efficient Reconstruction of Hexagonally Sampled Data using Three-Directional Box-Splines
Three-directional box-splines are particularly well-suited to interpolate and approximate hexagonally sampled data. In this paper, we propose a computationally efficient end-toend reconstruction process. First, we introduce a prefiltering step that is based on a quasi-interpolation scheme using lowcomplexity finite-impulse-response (FIR) filters. Second, we derive a closed analytical expression for three-directional box-splines of any order that leads to a fast evaluation of the spline surface. All operations act locally on the data, and thus are well adapted to applications dealing with large images. To demonstrate the feasibility of our method, we implemented the complete procedure and we present experimental results.
Laurent Condat, Dimitri Van De Ville, Michael Unse
Added 22 Oct 2009
Updated 22 Oct 2009
Type Conference
Year 2006
Where ICIP
Authors Laurent Condat, Dimitri Van De Ville, Michael Unser
Comments (0)
books