Jun 25, 2003 · One approach to deal with nonlinear filters consists in investigating their root images (fixed elements or signals transparent to the filter).

A rigorous treatment for the construction of Tyan and Dohler's median filters is given and the approach is generalized to the d-dimensional case.

Median filters are frequently used in signal analysis because of their smoothing properties and their insensitivity with respect to outliers in the data.

Tyan (1981) and Döhler (1989) proposed a method for construction of small root images for two-dimensional median filters. Although the Tyan-Döhler construction ...

In this paper we use the 8-semi-topology, because it has the property that the 8-connected sets of Rosenfeld, which play a prominent role in connectivity issues ...

Jan 3, 2018 · Abstract – In this paper, we extend the concepts of semi-open sets and λ-open sets in the digital topology. In.

This article describes an automatic method applicable to the segmentation of mediastinum Computerized Axial Tomography (CAT) images with tumors, by means of ...

Jan 3, 2018 · In this paper, we extend the concepts of semi-open sets and λ-open sets in the digital topology. In addition, we introduce the concepts of ...

Oct 22, 2024 · A relationship between digital topology and image processing is established by showing that regular open digital sets, interpreted as digital ...