TY - JOUR
T1 - Two dimensional M-channel non-separable filter banks based on cosine modulated filter banks with diagonal shifts
AU - Yoshida, Taichi
AU - Kyochi, Seisuke
AU - Ikehara, Masaaki
PY - 2013/8
Y1 - 2013/8
N2 - 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.
AB - 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.
KW - Cosine modulated filter banks
KW - Directional filter banks
KW - Paraunitary
KW - Two dimensional non-separable filter banks
UR - http://www.scopus.com/inward/record.url?scp=84881502367&partnerID=8YFLogxK
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U2 - 10.1587/transfun.E96.A.1685
DO - 10.1587/transfun.E96.A.1685
M3 - Article
AN - SCOPUS:84881502367
SN - 0916-8508
VL - E96-A
SP - 1685
EP - 1694
JO - IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
JF - IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
IS - 8
ER -