Masayuki KAWAMATA


High-Accuracy and Area-Efficient Stochastic FIR Digital Filters Based on Hybrid Computation
Shunsuke KOSHITA Naoya ONIZAWA Masahide ABE Takahiro HANYU Masayuki KAWAMATA 
Publication:   
Publication Date: 2017/08/01
Vol. E100-D  No. 8  pp. 1592-1602
Type of Manuscript:  Special Section PAPER (Special Section on Multiple-Valued Logic and VLSI Computing)
Category: VLSI Architecture
Keyword: 
FIR digital filterstochastic computationcomputational accuracydigital circuit implementation
 Summary | Full Text:PDF(1.3MB)

Correct Formulation of Gradient Characteristics for Adaptive Notch Filters Based on Monotonically Increasing Gradient Algorithm
Shunsuke KOSHITA Hiroyuki MUNAKATA Masahide ABE Masayuki KAWAMATA 
Publication:   
Publication Date: 2017/07/01
Vol. E100-A  No. 7  pp. 1557-1561
Type of Manuscript:  LETTER
Category: Digital Signal Processing
Keyword: 
adaptive notch filterMIG algorithmgradient characteristicmonotonically increasing
 Summary | Full Text:PDF(153.6KB)

Statistical Analysis of Phase-Only Correlation Functions between Real Signals with Stochastic Phase-Spectrum Differences
Shunsuke YAMAKI Masahide ABE Masayuki KAWAMATA 
Publication:   
Publication Date: 2017/05/01
Vol. E100-A  No. 5  pp. 1097-1108
Type of Manuscript:  PAPER
Category: Digital Signal Processing
Keyword: 
phase-only correlation functionsreal signalsodd-symmetrycharacteristic functionstrigonometric moments
 Summary | Full Text:PDF(1.6MB)

Statistical Analysis of Phase-Only Correlation Functions with Phase-Spectrum Differences Following Wrapped Distributions
Shunsuke YAMAKI Masahide ABE Masayuki KAWAMATA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2016/10/01
Vol. E99-A  No. 10  pp. 1790-1798
Type of Manuscript:  PAPER
Category: Digital Signal Processing
Keyword: 
phase-only correlation functionswrapped distributionsdirectional statisticscircular probability distributions
 Summary | Full Text:PDF(3.1MB)

A Simple and Explicit Formulation of Non-Unique Wiener Filters for Linear Predictor with Rank-Deficient Autocorrelation Matrix
Shunsuke KOSHITA Masahide ABE Masayuki KAWAMATA Takaaki OHNARI Tomoyuki KAWASAKI Shogo MIURA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2016/08/01
Vol. E99-A  No. 8  pp. 1614-1617
Type of Manuscript:  LETTER
Category: Digital Signal Processing
Keyword: 
Wiener filterlinear predictornoise-free inputrank-deficient input autocorrelation matrix
 Summary | Full Text:PDF(77.3KB)

A New Adaptive Notch Filtering Algorithm Based on Normalized Lattice Structure with Improved Mean Update Term
Shinichiro NAKAMURA Shunsuke KOSHITA Masahide ABE Masayuki KAWAMATA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2015/07/01
Vol. E98-A  No. 7  pp. 1482-1493
Type of Manuscript:  PAPER
Category: Digital Signal Processing
Keyword: 
adaptive notch filteraffine combinationmean update termnormalized lattice structuresimplified lattice algorithm
 Summary | Full Text:PDF(2.3MB)

Statistical Analysis of Phase-Only Correlation Functions Based on Directional Statistics
Shunsuke YAMAKI Masahide ABE Masayuki KAWAMATA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2014/12/01
Vol. E97-A  No. 12  pp. 2601-2610
Type of Manuscript:  PAPER
Category: Digital Signal Processing
Keyword: 
phase-only correlation functionsdirectional statisticscircular probability distributionsmean directioncircular variancevon-Mises distribution
 Summary | Full Text:PDF(1MB)

Closed Form Expressions of Balanced Realizations of Second-Order Analog Filters
Shunsuke YAMAKI Masahide ABE Masayuki KAWAMATA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2014/02/01
Vol. E97-A  No. 2  pp. 565-571
Type of Manuscript:  PAPER
Category: Digital Signal Processing
Keyword: 
state-space analog filtersbalanced realizationsclosed form expressions
 Summary | Full Text:PDF(409.8KB)

Flicker Parameters Estimation in Old Film Sequences Containing Moving Objects
Xiaoyong ZHANG Masahide ABE Masayuki KAWAMATA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2011/12/01
Vol. E94-A  No. 12  pp. 2836-2844
Type of Manuscript:  PAPER
Category: Digital Signal Processing
Keyword: 
old film restorationflicker correctionmotion detectionGaussian mixture modelM-estimation
 Summary | Full Text:PDF(1.4MB)

Reduction of Computational Cost of POC-Based Methods for Displacement Estimation in Old Film Sequences
Xiaoyong ZHANG Masahide ABE Masayuki KAWAMATA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2011/07/01
Vol. E94-A  No. 7  pp. 1497-1504
Type of Manuscript:  PAPER
Category: Digital Signal Processing
Keyword: 
old film restorationsubpixel displacementphase-only correlationDFT pruning
 Summary | Full Text:PDF(925KB)

Closed Form Solutions to L2-Sensitivity Minimization of Second-Order State-Space Digital Filters with Real Poles
Shunsuke YAMAKI Masahide ABE Masayuki KAWAMATA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2010/05/01
Vol. E93-A  No. 5  pp. 966-971
Type of Manuscript:  LETTER
Category: Digital Signal Processing
Keyword: 
state-space digital filtersL2-sensitivityminimizationclosed form solutions
 Summary | Full Text:PDF(1MB)

Closed Form Solutions to L2-Sensitivity Minimization Subject to L2-Scaling Constraints for Second-Order State-Space Digital Filters with Real Poles
Shunsuke YAMAKI Masahide ABE Masayuki KAWAMATA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2010/02/01
Vol. E93-A  No. 2  pp. 476-487
Type of Manuscript:  PAPER
Category: Digital Signal Processing
Keyword: 
second-order digital filters with real polesL2-sensitivityL2-scaling constraintsvariable transformationclosed form solutions
 Summary | Full Text:PDF(693.6KB)

Gramian-Preserving Frequency Transformation for Linear Discrete-Time State-Space Systems
Shunsuke KOSHITA Satoru TANAKA Masahide ABE Masayuki KAWAMATA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2008/10/01
Vol. E91-A  No. 10  pp. 3014-3021
Type of Manuscript:  PAPER
Category: Systems and Control
Keyword: 
discrete-time state-space systemfrequency transformationcontrollability Gramianobservability Gramianallpass functionnormalized lattice structure
 Summary | Full Text:PDF(259.4KB)

Fast and Efficient MRF-Based Detection Algorithm of Missing Data in Degraded Image Sequences
Sang-Churl NAM Masahide ABE Masayuki KAWAMATA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2008/08/01
Vol. E91-A  No. 8  pp. 1898-1906
Type of Manuscript:  Special Section PAPER (Special Section on Signal Processing)
Category: 
Keyword: 
blotchesMRF modelsdegraded image sequencesICM method
 Summary | Full Text:PDF(1.2MB)

A Closed Form Solution to L2-Sensitivity Minimization of Second-Order State-Space Digital Filters Subject to L2-Scaling Constraints
Shunsuke YAMAKI Masahide ABE Masayuki KAWAMATA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2008/07/01
Vol. E91-A  No. 7  pp. 1697-1705
Type of Manuscript:  PAPER
Category: Digital Signal Processing
Keyword: 
state-space digital filtersL2-sensitivityvariable transformationclosed form solution
 Summary | Full Text:PDF(285.8KB)

A Closed Form Solution to L2-Sensitivity Minimization of Second-Order State-Space Digital Filters
Shunsuke YAMAKI Masahide ABE Masayuki KAWAMATA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2008/05/01
Vol. E91-A  No. 5  pp. 1268-1273
Type of Manuscript:  LETTER
Category: Digital Signal Processing
Keyword: 
state-space digital filtersL2-sensitivityminimizationclosed form solution
 Summary | Full Text:PDF(103KB)

Analysis of Second-Order Modes of Linear Continuous-Time Systems under Positive-Real Transformations
Shunsuke KOSHITA Yousuke MIZUKAMI Taketo KONNO Masahide ABE Masayuki KAWAMATA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2008/02/01
Vol. E91-A  No. 2  pp. 575-583
Type of Manuscript:  PAPER
Category: Systems and Control
Keyword: 
linear continuous-time systemsecond-order mode (Hankel singular value)lossless positive-real transformationgeneral positive-real transformationcontrollability Gramianobservability Gramian
 Summary | Full Text:PDF(250.5KB)

Analysis of Second-Order Modes of Linear Discrete-Time Systems under Bounded-Real Transformations
Shunsuke KOSHITA Masahide ABE Masayuki KAWAMATA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2007/11/01
Vol. E90-A  No. 11  pp. 2510-2515
Type of Manuscript:  PAPER
Category: Systems and Control
Keyword: 
discrete-time state-space systemsecond-order mode (Hankel singular value)bounded-real transformationcontrollability Gramianobservability Gramiandiscrete-time bounded-real lemma
 Summary | Full Text:PDF(194.8KB)

State-Space Analysis of Power Complementary Filters
Shunsuke KOSHITA Masahide ABE Masayuki KAWAMATA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2007/10/01
Vol. E90-A  No. 10  pp. 2265-2271
Type of Manuscript:  PAPER
Category: Analog Signal Processing
Keyword: 
state-space representationpower complementarycontrollability Gramianobservability Gramianbounded-real Riccati equation
 Summary | Full Text:PDF(308.9KB)

High Accuracy Bicubic Interpolation Using Image Local Features
Shuai YUAN Masahide ABE Akira TAGUCHI Masayuki KAWAMATA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2007/08/01
Vol. E90-A  No. 8  pp. 1611-1615
Type of Manuscript:  Special Section LETTER (Special Section on Papers Selected from the 21st Symposium on Signal Processing)
Category: 
Keyword: 
bicubicinterpolationasymmetry featuregradient feature
 Summary | Full Text:PDF(1.1MB)

Invariance of Second-Order Modes of Linear Continuous-Time Systems under Typical Frequency Transformations
Masayuki KAWAMATA Yousuke MIZUKAMI Shunsuke KOSHITA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2007/07/01
Vol. E90-A  No. 7  pp. 1481-1486
Type of Manuscript:  LETTER
Category: Systems and Control
Keyword: 
continuous-time state-space systemsecond-order mode (Hankel singular value)frequency transformationinvariancecontrollability Gramianobservability Gramian
 Summary | Full Text:PDF(116KB)

A Modified Gaussian Filter for the Arbitrary Scale LP Enlargement Method
Shuai YUAN Akira TAGUCHI Masahide ABE Masayuki KAWAMATA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2007/05/01
Vol. E90-A  No. 5  pp. 1115-1120
Type of Manuscript:  LETTER
Category: Image
Keyword: 
arbitrary scale enlargementimage enlargementLaplacian pyramidGaussian filter
 Summary | Full Text:PDF(433.5KB)

An Extension to the Natural Gradient Algorithm for Robust Independent Component Analysis in the Presence of Outliers
Muhammad TUFAIL Masahide ABE Masayuki KAWAMATA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2006/09/01
Vol. E89-A  No. 9  pp. 2429-2432
Type of Manuscript:  LETTER
Category: Digital Signal Processing
Keyword: 
Independent Component Analysisrobust higher order statisticsoutliers
 Summary | Full Text:PDF(187.9KB)

A Characteristic Function Based Contrast Function for Blind Extraction of Statistically Independent Signals
Muhammad TUFAIL Masahide ABE Masayuki KAWAMATA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2006/08/01
Vol. E89-A  No. 8  pp. 2149-2157
Type of Manuscript:  Special Section PAPER (Special Section on Papers Selected from the 20th Symposium on Signal Processing)
Category: 
Keyword: 
independent component analysischaracteristic functionnon-Gaussianity measurecontrast function
 Summary | Full Text:PDF(362KB)

Enlargement for Images with Gaussian Noise by Embedded Filtering in the LP Algorithm
Shuai YUAN Akira TAGUCHI Masahide ABE Masayuki KAWAMATA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2006/08/01
Vol. E89-A  No. 8  pp. 2129-2139
Type of Manuscript:  Special Section PAPER (Special Section on Papers Selected from the 20th Symposium on Signal Processing)
Category: 
Keyword: 
Gaussian noiseLaplacian pyramidε-filterimage enlargement
 Summary | Full Text:PDF(1.1MB)

Realization of High Accuracy 2-D Variable IIR Digital Filters
Hyuk-Jae JANG Masayuki KAWAMATA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2002/10/01
Vol. E85-A  No. 10  pp. 2293-2301
Type of Manuscript:  PAPER
Category: Digital Signal Processing
Keyword: 
variable digital filter2-D IIR filterallpass sectionseparable denominator transfer functionhigh accuracy
 Summary | Full Text:PDF(609.8KB)

An Edge-Preserving Subband Image Coding Scheme Based on Separate Coding of Region and Residue Sources
Ho-Cheon WEY Masayuki KAWAMATA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2001/09/01
Vol. E84-A  No. 9  pp. 2247-2254
Type of Manuscript:  PAPER
Category: Digital Signal Processing
Keyword: 
subband image codingseparate codingregion sourceresidue sourcemultiresolution subimages
 Summary | Full Text:PDF(1.4MB)

Distributed Evolutionary Digital Filters for IIR Adaptive Digital Filters
Masahide ABE Masayuki KAWAMATA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2001/08/01
Vol. E84-A  No. 8  pp. 1848-1855
Type of Manuscript:  Special Section PAPER (Special Section on Digital Signal Processing)
Category: Adaptive Signal Processing
Keyword: 
adaptive digital filterIIR filtergenetic algorithmevolutionary computation
 Summary | Full Text:PDF(834KB)

Design and Realization of Variable IIR Digital Filters as a Cascade of Identical Subfilters
Georgi STOYANOV Ivan UZUNOV Masayuki KAWAMATA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2001/08/01
Vol. E84-A  No. 8  pp. 1831-1839
Type of Manuscript:  Special Section PAPER (Special Section on Digital Signal Processing)
Category: Digital Filter
Keyword: 
variable/tunable digital filtersIIR filterfilter approximation
 Summary | Full Text:PDF(673.2KB)

A Measure of Coefficient Quantization Errors for Linear Discrete-Time State-Space Systems
Shumon SAITO Masayuki KAWAMATA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2001/08/01
Vol. E84-A  No. 8  pp. 1815-1821
Type of Manuscript:  Special Section PAPER (Special Section on Digital Signal Processing)
Category: Digital Filter
Keyword: 
linear discrete-time systemsstate-space systemscoefficient sensitivitywordlength effects
 Summary | Full Text:PDF(483.5KB)

Design of Variable Digital Filters Based on State-Space Realizations
Hisashi MATSUKAWA Masayuki KAWAMATA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2001/08/01
Vol. E84-A  No. 8  pp. 1822-1830
Type of Manuscript:  Special Section PAPER (Special Section on Digital Signal Processing)
Category: Digital Filter
Keyword: 
variable digital filterbalanced realizationminimum round-off noise realizationstatistical sensitivity
 Summary | Full Text:PDF(528.8KB)

IFS Coding of Non-Homogeneous Fractal Images Using Grobner Basis Techniques
Toshimizu ABIKO Masayuki KAWAMATA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2000/08/25
Vol. E83-A  No. 8  pp. 1575-1581
Type of Manuscript:  Special Section PAPER (Special Section on Digital Signal Processing)
Category: Image/Visual Signal Processing
Keyword: 
image codingfractaliterated function systeminverse problemGrobner basis
 Summary | Full Text:PDF(1MB)

An Encoding Algorithm for IFS Coding of Homogeneous Fractal Images Using Univariate Polynomial Manipulation
Toshimizu ABIKO Masayuki KAWAMATA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1999/08/25
Vol. E82-A  No. 8  pp. 1435-1442
Type of Manuscript:  Special Section PAPER (Special Section on Digital Signal Processing)
Category: 
Keyword: 
fractaliterated function systeminverse problempolynomial manipulationintelligent signal processing
 Summary | Full Text:PDF(488.5KB)

Roundoff Error Analysis in the Decoding of Fractal Image Coding Using a Simplified State-Space Model
Choong Ho LEE Masayuki KAWAMATA Tatsuo HIGUCHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1999/06/25
Vol. E82-A  No. 6  pp. 872-878
Type of Manuscript:  Special Section PAPER (Special Section of Papers Selected from 1998 International Technical Conference on Circuits/Systems, Computers and Communications (ITC-CSCC '98))
Category: 
Keyword: 
fractal image codingiterated function systemroundoff errorstate-space approach
 Summary | Full Text:PDF(768KB)

Steady State Analysis of 2-D LMS Adaptive Filters Using the Independence Assumption
Maha SHADAYDEH Masayuki KAWAMATA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1999/03/25
Vol. E82-A  No. 3  pp. 457-465
Type of Manuscript:  Special Section PAPER (Special Section on Selected Papers from the 11th Workshop on Circuits and Systems in Karuizawa)
Category: 
Keyword: 
2-D LMSsteady state analysisdoubly-indexed system
 Summary | Full Text:PDF(278.4KB)

Arbitrary Multiband IIR Filter Approximation Method Suitable for Design of Parallel Allpass Structures
Ivan UZUNOV Georgi STOYANOV Masayuki KAWAMATA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1998/06/25
Vol. E81-A  No. 6  pp. 1029-1035
Type of Manuscript:  Special Section PAPER (Special Section of Papers Selected from ITC-CSCC'97)
Category: Digital Signal Processing
Keyword: 
analog and digital filtersmultiband filter approximationIIR filtersparallel allpass structure
 Summary | Full Text:PDF(642.7KB)

Evolutionary Digital Filtering for IIR Adaptive Digital Filters Based on the Cloning and Mating Reproduction
Masahide ABE Masayuki KAWAMATA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1998/03/25
Vol. E81-A  No. 3  pp. 398-406
Type of Manuscript:  Special Section PAPER (Special Section of Selected Papers from the 10th Karuizawa Workshop on Circuits and Systems)
Category: 
Keyword: 
adaptive digital filterIIR filtersystem identificationsimple genetic algorithmmulti-point searchnon-gradient search
 Summary | Full Text:PDF(779.7KB)

A Perfect-Reconstruction Encryption Scheme by Using Periodically Time-Varying Digital Filters
Xuedong YANG Masayuki KAWAMATA Tatsuo HIGUCHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1998/01/25
Vol. E81-A  No. 1  pp. 192-196
Type of Manuscript:  LETTER
Category: Digital Signal Processing
Keyword: 
perfect-reconstruction encryptionperiodically time-varying digital filtersfrequency scramble
 Summary | Full Text:PDF(296.2KB)

Analysis of Scaling-Factor-Quantization Error in Fractal Image Coding
Choong Ho LEE Masayuki KAWAMATA Tatsuo HIGUCHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1997/12/25
Vol. E80-A  No. 12  pp. 2572-2580
Type of Manuscript:  PAPER
Category: Digital Signal Processing
Keyword: 
fractal image codingiterated function systemsscaling-factor-quantization errorstate-space approach
 Summary | Full Text:PDF(790.3KB)

State-Space Approach to Roundoff Error Analysis of Fractal Image Coding
Choong Ho LEE Masayuki KAWAMATA Tatsuo HIGUCHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1997/01/25
Vol. E80-A  No. 1  pp. 159-165
Type of Manuscript:  PAPER
Category: Digital Signal Processing
Keyword: 
fractal image codingiterated function systemsroundoff error analysisstate-space approach
 Summary | Full Text:PDF(776.1KB)

Design of Multiplierless 2-D State-Space Digital Filters over a Powers-of-Two Coefficient Space
Young-Ho LEE Masayuki KAWAMATA Tatsuo HIGUCHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1996/03/25
Vol. E79-A  No. 3  pp. 374-377
Type of Manuscript:  Special Section LETTER (Special Section of Selected Papers from the 8th Karuizawa Workshop on Circuits and Systems)
Category: 
Keyword: 
multiplierless 2-D state-space digital filterspowers-of-twogenetic algorithmhigh-speed operation
 Summary | Full Text:PDF(313.3KB)

Evolutionary Digital Filtering Based on the Cloning and Mating Reproduction
Masahide ABE Masayuki KAWAMATA Tatsuo HIGUCHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1996/03/25
Vol. E79-A  No. 3  pp. 370-373
Type of Manuscript:  Special Section LETTER (Special Section of Selected Papers from the 8th Karuizawa Workshop on Circuits and Systems)
Category: 
Keyword: 
adaptive digital filtersystem identificationevolution strategiesmulti-point searchnon-gradient search
 Summary | Full Text:PDF(325.7KB)

FOREWORD
Masayuki KAWAMATA Nobuo FUJII 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1995/03/25
Vol. E78-A  No. 3  pp. 283-284
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF(169.4KB)

FOREWORD
Masayuki KAWAMATA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1993/12/25
Vol. E76-A  No. 12  pp. 2047-2047
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF(83.3KB)

Research Topics and Results on Digital Signal Processing
Masayuki KAWAMATA Tatsuo HIGUCHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1993/07/25
Vol. E76-A  No. 7  pp. 1087-1096
Type of Manuscript:  Special Section PAPER (Special Section on Surveys of Researches in CAS Fields in the Last Two Decades, I)
Category: 
Keyword: 
M-D digital filtermultiple-valued logic circuitssignal processor
 Summary | Full Text:PDF(945.3KB)

Analysis of Multidimensional Linear Periodically Shift-Variant Digital Filters and Its Application to Secure Communication of Images
Masayuki KAWAMATA Sho MURAKOSHI Tatsuo HIGUCHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1993/03/25
Vol. E76-A  No. 3  pp. 326-336
Type of Manuscript:  Special Section PAPER (Special Section on the 5th Karuizawa Workshop on Circuits and Systems)
Category: 
Keyword: 
digital signal processingmultidimensional digital filterslinear shift-variant systemfrequency scramblesecure communication
 Summary | Full Text:PDF(829KB)

Design and Evaluation of Highly Prallel VLSI Processors for 2-D State-Space Digital Filters Using Hierarchical Behavioral Description Language and Synthesizer
Masayuki KAWAMATA Yasushi IWATA Tatsuo HIGUCHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1992/07/25
Vol. E75-A  No. 7  pp. 837-845
Type of Manuscript:  Special Section PAPER (Special Section on Multidimensional Signal Processing)
Category: Design and Implementation of Multidimensional Digital Filters
Keyword: 
two dimensional state-space digital filtersVLSI processorsdistributed arithmeticbehavioral description languagelogic synthesizer
 Summary | Full Text:PDF(685.8KB)

Design of Three-Dimensional Digital Filters for Video Signal Processing via Decomposition of Magnitude Specifications
Masayuki KAWAMATA Takehiko KAGOSHIMA Tatsuo HIGUCHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1992/07/25
Vol. E75-A  No. 7  pp. 821-829
Type of Manuscript:  Special Section PAPER (Special Section on Multidimensional Signal Processing)
Category: Design and Implementation of Multidimensional Digital Filters
Keyword: 
designparallel separable 3-D digital filterreal time video signal processingdecomposition
 Summary | Full Text:PDF(701.7KB)

Design of Two-Dimensional Recursive Digital Filters Based on the Iterative Singular Value Decomposition
Tian-bo DENG Masayuki KAWAMATA 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1990/06/25
Vol. E73-E  No. 6  pp. 882-892
Type of Manuscript:  PAPER
Category: Digital Signal Processing
Keyword: 
 Summary | Full Text:PDF(838.8KB)

Controllability, Observability and Model Reduction of Separable Denominator M-D Systems
ZHAO Qiangfu Masayuki KAWAMATA Tatsuo HIGUCHI 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1988/05/25
Vol. E71-E  No. 5  pp. 505-513
Type of Manuscript:  PAPER
Category: Systems and Control
Keyword: 
 Summary | Full Text:PDF(680.9KB)

A Unified Approach to the Minimization of Quantization Effects in Separable Denominator Multi-Dimensional Digital Filters
ZHAO Qingfu Masayuki KAWAMATA Tatsuo HIGUCHI 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1987/11/25
Vol. E70-E  No. 11  pp. 1092-1095
Type of Manuscript:  LETTER
Category: Digital Signal Processing
Keyword: 
 Summary | Full Text:PDF(243.4KB)

Minimization of Sensitivity of 2-D Systems and Its Relation to 2-D Balanced Realizations
Tao LIN Masayuki KAWAMATA Tatsuo HIGUCHI 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1987/10/25
Vol. E70-E  No. 10  pp. 938-944
Type of Manuscript:  PAPER
Category: Circuit Theory
Keyword: 
 Summary | Full Text:PDF(565.9KB)

Direct Design of Separable Denominator 3-D State-Space Digital Filters
ZHAO Qiangfu Masayuki KAWAMATA Tatsuo HIGUCHI 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1987/04/25
Vol. E70-E  No. 4  pp. 411-421
Type of Manuscript:  PAPER
Category: Circuit Theory
Keyword: 
 Summary | Full Text:PDF(722KB)

Limit Cycle-Free 2-D Separable Denominator Digital Filters under Any Constant Input Conditions
Masayuki KAWAMATA Tatsuo HIGUCHI 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1987/04/25
Vol. E70-E  No. 4  pp. 373-375
Type of Manuscript:  LETTER
Category: Circuit Theory
Keyword: 
 Summary | Full Text:PDF(200.6KB)

A New Property of Optimal Realizations of CRSD 2-D Digital Filters and Its Application to the Direct Spatial-Domain Design
ZHAO Qiangfu Masayuki KAWAMATA Tatsuo HIGUCHI 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1986/10/25
Vol. E69-E  No. 10  pp. 1084-1092
Type of Manuscript:  PAPER
Category: System Theory
Keyword: 
 Summary | Full Text:PDF(717.7KB)

Frequency Dependent Lyapunov Equations for 2-D Observability Gramian and Controllability Gramian
Tao LIN Masayuki KAWAMATA Tatuo HIGUCHI 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1986/08/25
Vol. E69-E  No. 8  pp. 827-829
Type of Manuscript:  LETTER
Category: General
Keyword: 
 Summary | Full Text:PDF(187.1KB)