%0 Journal Article %T Wavelets centered on a knot sequence: theory, construction, and applications %A Bruce W. Atkinson %A Derek O. Bruff %A Jeffrey S. Geronimo %A Douglas P. Hardin %J Mathematics %D 2011 %I arXiv %X We develop a general notion of orthogonal wavelets `centered' on an irregular knot sequence. We present two families of orthogonal wavelets that are continuous and piecewise polynomial. We develop efficient algorithms to implement these schemes and apply them to a data set extracted from an ocelot image. As another application, we construct continuous, piecewise quadratic, orthogonal wavelet bases on the quasi-crystal lattice consisting of the $\tau$-integers where $\tau$ is the golden ratio. The resulting spaces then generate a multiresolution analysis of $L^2(\mathbf{R})$ with scaling factor $\tau$. %U http://arxiv.org/abs/1102.4246v2