Two-dimensional block diagonal LMS adaptive algorithm

Hongye Pan; Mahmood R. Azimi-Sadjadi

doi:10.1117/12.143143

8 April 1993 Two-dimensional block diagonal LMS adaptive algorithm

Hongye Pan, Mahmood R. Azimi-Sadjadi

Proceedings Volume 1903, Image and Video Processing; (1993) https://doi.org/10.1117/12.143143
Event: IS&T/SPIE's Symposium on Electronic Imaging: Science and Technology, 1993, San Jose, CA, United States

Abstract

This paper is concerned with the development of a two-dimensional (2-D) adaptive filtering using block diagonal least mean squared (BDLMS) method. In this adaptive filtering scheme, the image is scanned and processed block by block in a diagonal fashion, and the filter weights are adjusted once per each block rather than once per each pixel. As a result, this method takes into account the correlations of the pixels along both vertical and horizontal directions. The properties of this 2-D adaptive filter, including convergence behavior, adaptation speed, and adaptation accuracy, have been studied. Simulation results are presented which indicate the effectiveness of the 2-D BDLMS when used for image enhancement and estimation applications.

Citation Download Citation

Hongye Pan and Mahmood R. Azimi-Sadjadi "Two-dimensional block diagonal LMS adaptive algorithm", Proc. SPIE 1903, Image and Video Processing, (8 April 1993); https://doi.org/10.1117/12.143143

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