The Community for Technology Leaders
RSS Icon
Subscribe
Issue No.07 - July (1994 vol.16)
pp: 734-739
ABSTRACT
<p>Reliable derivatives of digital images have always been hard to obtain, especially (but not only) at high orders. We analyze the sources of errors in traditional filters, such as derivatives of the Gaussian, that are used for differentiation. We then study a class of filters which is much more suitable for our purpose, namely filters that preserve polynomials up to a given order. We show that the errors in differentiation can be corrected using these filters. We derive a condition for the validity domain of these filters, involving some characteristics of the filter and of the shape. Our experiments show a very good performance for smooth functions.</p>
INDEX TERMS
image processing; filtering and prediction theory; polynomials; high-order differentiation filters; digital images; error source; polynomials; validity domain; smooth functions; image smoothing; noise suppression
CITATION
I. Weiss, "High-Order Differentiation Filters that Work", IEEE Transactions on Pattern Analysis & Machine Intelligence, vol.16, no. 7, pp. 734-739, July 1994, doi:10.1109/34.297955
19 ms
(Ver 2.0)

Marketing Automation Platform Marketing Automation Tool