2-DIMENSIONAL BLOCK DIAGONAL LMS ADAPTIVE FILTERING

被引:27
作者
AZIMISADJADI, MR
PAN, HY
机构
[1] Department of Electrical Engineering, Colorado State University, Fort Collins
关键词
D O I
10.1109/78.317863
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
This paper is concerned with the development of a two-dimensional (2-D) adaptive filters using the 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 block rather than once per pixel. The diagonal scanning is adopted to avoid the problems inherent in the 1-D standard scanning schemes and to account for the correlations in two directions. The weight updating equation for 2-D BDLMS is derived, and the convergence properties of the algorithms are investigated. Simulation results that indicate the effectiveness of the 2-D BDLMS when used for image enhancement, estimation, and detection applications are presented.
引用
收藏
页码:2420 / 2429
页数:10
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