Share Email Print

Proceedings Paper

Recursive filters for fast B-spline interpolation and compression of digital images
Author(s): Michael A. Unser
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Signal processing concepts are used to study the problems of obtaining continuous image representations in terms of B-spline basis functions, and performing reconstructions at various magnifications. Filters that compute direct or indirect B-spline transformations are derived and characterized in terms of their z-transforms for polynomial splines of any order. Efficient recursive implementations of these operators are proposed. Recursive filters that efficiently solve the problem of approximating a signal through the use of least squares splines are also derived. This last procedure is analogous to the application of an anti-aliasing filter prior to decimation for the representation of a signal with fewer samples.

Paper Details

Date Published: 1 July 1990
PDF: 11 pages
Proc. SPIE 1232, Medical Imaging IV: Image Capture and Display, (1 July 1990); doi: 10.1117/12.18866
Show Author Affiliations
Michael A. Unser, National Institutes of Health (United States)

Published in SPIE Proceedings Vol. 1232:
Medical Imaging IV: Image Capture and Display
Yongmin Kim, Editor(s)

© SPIE. Terms of Use
Back to Top