Squeezable orthogonal bases and adaptive least squares
George C. Donovan, Jeffrey S. Geronimo, Douglas P. Hardin · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 1997
Orthogonal bases of piecewise polynomial smooth functions on arbitrary partitions are constructed using techniques developed by the authors for constructing orthogonal multiwavelets. These bases are generated by a small number of functions that are translated and scaled to each of the intervals in the partition.