Keyword : hybrid steepest descent method


An Edge-Preserving Super-Precision for Simultaneous Enhancement of Spacial and Grayscale Resolutions
Hiroshi HASEGAWA Toshinori OHTSUKA Isao YAMADA Kohichi SAKANIWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2008/02/01
Vol. E91-A  No. 2 ; pp. 673-681
Type of Manuscript:  PAPER
Category: Image
Keyword: 
super-resolutionHuber functiontotal variationset-theoretic approachouter approximationhybrid steepest descent method
 Summary | Full Text:PDF(2MB)

A Higher Order Generalization of an Alias-Free Discrete Time-Frequency Analysis
Hiroshi HASEGAWA Yasuhiro MIKI Isao YAMADA Kohichi SAKANIWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2002/08/01
Vol. E85-A  No. 8 ; pp. 1774-1780
Type of Manuscript:  Special Section PAPER (Special Section on Digital Signal Processing)
Category: Theory of Signals
Keyword: 
time-frequency analysishigher order moment spectradiscrete-time & frequencykernel designhybrid steepest descent method
 Summary | Full Text:PDF(476.1KB)

A Design of Near Perfect Reconstruction Linear-Phase QMF Banks Based on Hybrid Steepest Descent Method
Hiroshi HASEGAWA Isao YAMADA Kohichi SAKANIWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2000/08/25
Vol. E83-A  No. 8 ; pp. 1523-1530
Type of Manuscript:  Special Section PAPER (Special Section on Digital Signal Processing)
Category: Filter Banks
Keyword: 
two-channel linear phase FIR QMF banknear perfect reconstructionconvex projection techniquehybrid steepest descent methodmagnitude product space
 Summary | Full Text:PDF(716.7KB)

A Simple Nonlinear Pre-Filtering for a Set-Theoretic Linear Blind Deconvolution Scheme
Masanori KATO Isao YAMADA Kohichi SAKANIWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2000/08/25
Vol. E83-A  No. 8 ; pp. 1651-1653
Type of Manuscript:  Special Section LETTER (Special Section on Digital Signal Processing)
Category: Multidimensional Signal Processing
Keyword: 
blind image deconvolutionrestoration filterhybrid steepest descent methodnonlinear pre-filteringε-filter
 Summary | Full Text:PDF(596.7KB)

A Set-Theoretic Blind Image Deconvolution Based on Hybrid Steepest Descent Method
Masanori KATO Isao YAMADA Kohichi SAKANIWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1999/08/25
Vol. E82-A  No. 8 ; pp. 1443-1449
Type of Manuscript:  Special Section PAPER (Special Section on Digital Signal Processing)
Category: 
Keyword: 
blind image restorationblind image deconvolutionconvex projectionhybrid steepest descent method
 Summary | Full Text:PDF(1.2MB)