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Two-dimensional frequency-domain blind system identification using higher order statistics with application to texture synthesis
Journal article

Two-dimensional frequency-domain blind system identification using higher order statistics with application to texture synthesis

Chong-Yung Chi and Chii-Horng Chen
IEEE Transactions on Signal Processing, Vol.49(4), pp.864-877
04/2001

Abstract

2-D blind system identification 2-D super-exponential algorithm Higher order statistics and texture synthesis
In this paper, Shalvi and Weinstein's super-exponential (SE) algorithm using higher order statistics for blind deconvolution of one-dimensional (1-D) linear time-invariant systems is extended to a two-dimensional (2-D) SE algorithm. Then, a 2-D frequency-domain blind system identification (BSI) algorithm for 2-D linear shift-invariant (LSI) systems using the computationally efficient 2-D SE algorithm and the 2-D linear prediction error filter is proposed. In addition to the LSI system estimate, the proposed BSI algorithm also provides a minimum mean square error (MMSE) equalizer estimate and an MMSE signal enhancement filter estimate. Then, a texture synthesis method (TSM) using the proposed BSI algorithm is presented. Some simulation results to support the efficacy of the proposed BSI algorithm and some experimental results to support the efficacy of the proposed TSM are presented. Finally, some conclusions are drawn.

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