Adaptive template filter and its medical applications

Shuqian Luo; Jing Han

doi:10.1117/12.430987

3 July 2001 Adaptive template filter and its medical applications

Shuqian Luo, Jing Han

Author Affiliations +

Proceedings Volume 4322, Medical Imaging 2001: Image Processing; (2001) https://doi.org/10.1117/12.430987
Event: Medical Imaging 2001, 2001, San Diego, CA, United States

Abstract

In this paper an adaptive template filtering method is described which can be used to increase the signal-to-noise ratio(SNR) and keep the important edge information of medical images. To date various filtering approaches are reported, most of them enhance SNR in different levels with loss of some useful information. We try to develop a robust algorithm. Unlike conventional filtering, where the template shape and coefficients are fixed, multiple templates are defined in the proposed algorithm. For each pixel, an optimal template is selected automatically depending on its neighbor pixels. Simulation and MRI image tests, both 2D and 3D, show that the new adaptive template filter provides higher SNR and sharper edges. Our method improved existing adaptive template filtering technique, corrected scale factor of threshold adjustment, extended it to 3D algorithm.

Citation Download Citation

Shuqian Luo and Jing Han "Adaptive template filter and its medical applications", Proc. SPIE 4322, Medical Imaging 2001: Image Processing, (3 July 2001); https://doi.org/10.1117/12.430987

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