Title :
Optimal L/sup 2/ approximation of images in nonorthogonal multiresolution bases
Author_Institution :
Bell Commun. Res., Morristown, NJ, USA
Abstract :
The author presents a fast optimization algorithm for L/sup 2/ approximation in 2-D, separable, nonorthogonal multiresolution bases and discusses its application to image coding. The algorithm is applied to a multiresolution bilinear spline basis and produces approximations that have two attractive features: fewer ringing artifacts and faster reconstruction than in commonly used multiresolution bases.<>
Keywords :
image coding; least squares approximations; piecewise-linear techniques; splines (mathematics); fast optimization algorithm; image coding; least squares approximation; multiresolution bilinear spline basis; nonorthogonal multiresolution bases; reconstruction; ringing artifacts;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1993. ICASSP-93., 1993 IEEE International Conference on
Conference_Location :
Minneapolis, MN, USA
Print_ISBN :
0-7803-7402-9
DOI :
10.1109/ICASSP.1993.319779
