Two Dimensional M-Channel Non-separable Filter Banks Based on Cosine Modulated Filter Banks with Diagonal Shifts
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概要
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In this paper, we propose a new class of two dimensional (2D) M-channel (M-ch) non-separable filter banks (FBs) based on cosine modulated filter banks (CMFBs) via a new diagonally modulation scheme. Until now, many researchers have proposed 2D non-separable CMFBs. Nevertheless, efficient direction-selective CMFBs have not been yet. Thanks to our new modulations with diagonal shifts, proposed CMFBs have several frequency supports including direction-selective ones which cannot be realized by conventional ones. In a simulation, we show design examples of proposed CMFBs and their various directional frequency supports.
著者
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YOSHIDA Taichi
Department of Electronics and Electrical Engineering, Keio University
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Kyochi Seisuke
Department Of Electronics And Electrical Engineering Keio University
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Ikehara Masaaki
Department Of Electrical Engineering Keio University
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Yoshida Taichi
Department Of Electronics And Electrical Engineering Keio University
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