Shogo MURAMATSU


Multi-Focus Image Fusion Based on Multiple Directional LOTs
Zhiyu CHEN Shogo MURAMATSU 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2015/11/01
Vol. E98-A  No. 11  pp. 2360-2365
Type of Manuscript:  LETTER
Category: Image
Keyword: 
multiple DirLOTsimage fusionmutual information
 Summary | Full Text:PDF

SURE-LET Poisson Denoising with Multiple Directional LOTs
Zhiyu CHEN Shogo MURAMATSU 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2015/08/01
Vol. E98-A  No. 8  pp. 1820-1828
Type of Manuscript:  PAPER
Category: Image
Keyword: 
Poisson noisemultiple DirLOTswavelet shrinkageanscombe transformSURE-LET
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Image Restoration with Multiple DirLOTs
Natsuki AIZAWA Shogo MURAMATSU Masahiro YUKAWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2013/10/01
Vol. E96-A  No. 10  pp. 1954-1961
Type of Manuscript:  Special Section PAPER (Special Section on Sparsity-aware Signal Processing)
Category: 
Keyword: 
DirLOTdeblurringsuper-resolutioninpaintingiterative-shrinkage/thresholding algorithm (ISTA)multi-directional dictionary
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Look-Up-Table-Based Exponential Computation and Application to an EM Algorithm for GMM
Hidenori WATANABE Shogo MURAMATSU 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2013/05/01
Vol. E96-A  No. 5  pp. 935-939
Type of Manuscript:  PAPER
Category: Digital Signal Processing
Keyword: 
EM algorithmGaussian mixture modelexponential function
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Simple Bitplane Coding and Its Application to Multi-Functional Image Compression
Hisakazu KIKUCHI Ryosuke ABE Shogo MURAMATSU 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2012/05/01
Vol. E95-A  No. 5  pp. 938-951
Type of Manuscript:  PAPER
Category: Image
Keyword: 
image compressionimage codingcontext model
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Reversible Implementations of Irreversible Component Transforms and Their Comparisons in Image Compression
Junghyeun HWANG Hisakazu KIKUCHI Shogo MURAMATSU Kazuma SHINODA Jaeho SHIN 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2012/04/01
Vol. E95-A  No. 4  pp. 824-828
Type of Manuscript:  LETTER
Category: Digital Signal Processing
Keyword: 
component transformreversible transformimage compressionLU factorization
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A Computer-Aided Distinction Method of Borderline Grades of Oral Cancer
Mustafa M. SAMI Masahisa SAITO Shogo MURAMATSU Hisakazu KIKUCHI Takashi SAKU 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2010/08/01
Vol. E93-A  No. 8  pp. 1544-1552
Type of Manuscript:  PAPER
Category: Image
Keyword: 
medical image analysisoral borderline malignancyfeature quantificationsegmentationedgel
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An Optimum Design of Error Diffusion Filters Using the Blue Noise in All Graylevels
Junghyeun HWANG Hisakazu KIKUCHI Shogo MURAMATSU Jaeho SHIN 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2010/08/01
Vol. E93-A  No. 8  pp. 1465-1475
Type of Manuscript:  PAPER
Category: Digital Signal Processing
Keyword: 
digital halftoningerror diffusionblue noisepower spectrumbinary pattern power spectrum matching
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Constraints of Second-Order Vanishing Moments on Lattice Structures for Non-separable Orthogonal Symmetric Wavelets
Atsuyuki ADACHI Shogo MURAMATSU Hisakazu KIKUCHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2009/03/01
Vol. E92-A  No. 3  pp. 788-797
Type of Manuscript:  Special Section PAPER (Special Section on Latest Advances in Fundamental Theories of Signal Processing)
Category: 
Keyword: 
waveletsorthogonal transformsnon-separable filter banksvanishing momentsvideo coding
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Lossless-by-Lossy Coding for Scalable Lossless Image Compression
Kazuma SHINODA Hisakazu KIKUCHI Shogo MURAMATSU 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2008/11/01
Vol. E91-A  No. 11  pp. 3356-3364
Type of Manuscript:  PAPER
Category: Image
Keyword: 
image compressionlossless compressionscalable codingembedded codingwavelet transformcontext modeling
 Summary | Full Text:PDF

Color Demosaicing Using Asymmetric Directional Interpolation and Hue Vector Smoothing
Yoshihisa TAKAHASHI Kentaro HIRAKI Hisakazu KIKUCHI Shogo MURAMATSU 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2008/04/01
Vol. E91-A  No. 4  pp. 978-986
Type of Manuscript:  Special Section PAPER (Special Section on Selected Papers from the 20th Workshop on Circuits and Systems in Karuizawa)
Category: 
Keyword: 
image processingcolor demosaicinginterpolationCFA
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Functionally Layered Video Coding for Water Level Monitoring
Sakol UDOMSIRI Masahiro IWAHASHI Shogo MURAMATSU 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2008/04/01
Vol. E91-A  No. 4  pp. 1006-1014
Type of Manuscript:  Special Section PAPER (Special Section on Selected Papers from the 20th Workshop on Circuits and Systems in Karuizawa)
Category: 
Keyword: 
waterrecognitionvideocodingscalable
 Summary | Full Text:PDF

Equivalent Parallel Structure of Deinterlacer Banks and Its Application to Optimal Bit-Rate Allocation
Minoru HIKI Shogo MURAMATSU Takuma ISHIDA Hisakazu KIKUCHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2007/03/01
Vol. E90-A  No. 3  pp. 642-650
Type of Manuscript:  PAPER
Category: Digital Signal Processing
Keyword: 
3-D filter banksscalable video codingrate-distortion controlinterlace video
 Summary | Full Text:PDF

Parameter Embedding in Motion-JPEG2000 through ROI for Variable-Coefficient Invertible Deinterlacing
Jun UCHITA Shogo MURAMATSU Takuma ISHIDA Hisakazu KIKUCHI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2006/11/01
Vol. E89-D  No. 11  pp. 2794-2801
Type of Manuscript:  PAPER
Category: Image Processing and Video Processing
Keyword: 
invertible deinterlacingintra-frame-based codingSNR scalabilityvariable processingMotion-JPEG2000ROI (Region of Interest)
 Summary | Full Text:PDF

A New Color Demosaicing Method Using Asymmetric Average Interpolation and Its Iteration
Yoshihisa TAKAHASHI Hisakazu KIKUCHI Shogo MURAMATSU Yoshito ABE Naoki MIZUTANI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2005/08/01
Vol. E88-A  No. 8  pp. 2108-2116
Type of Manuscript:  Special Section PAPER (Special Section on Papers Selected from the 19th Symposium on Signal Processing)
Category: Image
Keyword: 
color demosaicinginterpolationiterationasymmetric average
 Summary | Full Text:PDF

Evaluation of Selective Rake Receiver in Direct Sequence Ultra Wideband Communications
Mohammad Azizur RAHMAN Shigenobu SASAKI Jie ZHOU Shogo MURAMATSU Hisakazu KIKUCHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2004/07/01
Vol. E87-A  No. 7  pp. 1742-1746
Type of Manuscript:  Special Section LETTER (Special Section on Multi-dimensional Mobile Information Networks)
Category: Mobile Communication
Keyword: 
ultra widebandselective Rake receiverspreading bandwidthpower delay profilepartial band interference
 Summary | Full Text:PDF

A Parameter Decimation Technique for Variable-Coefficient Invertible Deinterlacing
Jun UCHITA Takuma ISHIDA Shogo MURAMATSU Hisakazu KIKUCHI Tetsuro KUGE 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2004/06/01
Vol. E87-A  No. 6  pp. 1363-1370
Type of Manuscript:  Special Section PAPER (Special Section on Papers Selected from 2003 International Technical Conference on Circuits/Systems, Computers and Communications (ITC-CSCC 2003))
Category: 
Keyword: 
invertible deinterlacingintraframe-based codingscalable codingvariable coefficientsMotion-JPEG2000
 Summary | Full Text:PDF

Online SNR and Fading Parameter Estimation for Parallel Combinatorial SS Systems in Nakagami Fading Channels
Kazuyuki UENAGA Shigenobu SASAKI Ken-ichi TAKIZAWA Jie ZHOU Shogo MURAMATSU Hisakazu KIKUCHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2004/06/01
Vol. E87-A  No. 6  pp. 1495-1499
Type of Manuscript:  Special Section LETTER (Special Section on Papers Selected from 2003 International Technical Conference on Circuits/Systems, Computers and Communications (ITC-CSCC 2003))
Category: 
Keyword: 
spread spectrummulticode systemsonline SNR estimationNakagami fading
 Summary | Full Text:PDF

Generalized Spatial Correlation Equations for Antenna Arrays in Wireless Diversity Reception: Exact and Approximate Analyses
Jie ZHOU Kenta ISHIZAWA Shigenobu SASAKI Shogo MURAMATSU Hisakazu KIKUCHI Yoshikuni ONOZATO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2004/01/01
Vol. E87-B  No. 1  pp. 204-208
Type of Manuscript:  LETTER
Category: Antennas and Propagation
Keyword: 
spatial correlationangular spreadantenna array and diversity reception
 Summary | Full Text:PDF

A Lifting Implementation of Variable-Coefficient Invertible Deinterlacer with Embedded Motion Detector
Takuma ISHIDA Tatsuumi SOYAMA Shogo MURAMATSU Hisakazu KIKUCHI Tetsuro KUGE 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2003/08/01
Vol. E86-A  No. 8  pp. 1942-1948
Type of Manuscript:  Special Section PAPER (Special Section on Digital Signal Processing)
Category: 
Keyword: 
invertible deinterlacingvariable-coefficient filteringmotion-JPEG2000lifting implementation
 Summary | Full Text:PDF

Spatial Correlation Functions for a Circular Antenna Array and Their Applications in Wireless Communication Systems
Jie ZHOU Shigenobu SASAKI Shogo MURAMATSU Hisakazu KIKUCHI Yoshikuni ONOZATO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2003/07/01
Vol. E86-A  No. 7  pp. 1716-1723
Type of Manuscript:  Special Section LETTER (Special Section on Multi-dimensional Mobile Information Networks)
Category: 
Keyword: 
spatial correlated functionantenna arrayNakagami fadingMRC and diversity reception
 Summary | Full Text:PDF

Performance Analysis of a DS-CDMA Cellular System with Cell Splitting into Macrocell and Microcell Architecture
Jie ZHOU Shigenobu SASAKI Shogo MURAMATSU Hisakazu KIKUCHI Yoshikuni ONOZATO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2003/06/01
Vol. E86-B  No. 6  pp. 1967-1977
Type of Manuscript:  PAPER
Category: Terrestrial Radio Communications
Keyword: 
system capacityoutage probabilitycapacity planecode division multiple access (CDMA)macrocell and microcell
 Summary | Full Text:PDF

Lifting Architecture of Invertible Deinterlacing
Tatsuumi SOYAMA Takuma ISHIDA Shogo MURAMATSU Hisakazu KIKUCHI Tetsuro KUGE 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2003/04/01
Vol. E86-A  No. 4  pp. 779-786
Type of Manuscript:  Special Section PAPER (Special Section of Selected Papers from the 15th Workshop on Circuits and Systems in Karuizawa)
Category: 
Keyword: 
deinterlacingdiscrete wavelet transformslifting schemeJPEG2000intra-frame-based motion picture coding
 Summary | Full Text:PDF

Online SNR Estimation for Parallel Combinatorial SS Systems in Nakagami Fading Channels
Ken-ichi TAKIZAWA Shigenobu SASAKI Jie ZHOU Shogo MURAMATSU Hisakazu KIKUCHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2002/12/01
Vol. E85-A  No. 12  pp. 2847-2858
Type of Manuscript:  Special Section PAPER (Special Section on Spread Spectrum Techniques and Applications)
Category: 
Keyword: 
multi-code DS/SSonline SNR estimationiterative decodingNakagami fading channels
 Summary | Full Text:PDF

Performance Investigation of Two Transmit Diversity Schemes with Perfect/Imperfect Channel Evaluation in Wireless Communications
Jie ZHOU Hisakazu KIKUCHI Shigenobu SASAKI Shogo MURAMATSU Yoshikuni ONOZATO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2002/10/01
Vol. E85-B  No. 10  pp. 1957-1965
Type of Manuscript:  Special Section PAPER (Special Issue on Mobile Multimedia Communications)
Category: 
Keyword: 
transmit diversityperfect/imperfect channel detectionantenna arraymaximal-ratio combiningmulti-path mitigation
 Summary | Full Text:PDF

Performance Bounds in Convolutional Coded Parallel Combinatorial SS Systems
Ken-ichi TAKIZAWA Shigenobu SASAKI Shogo MURAMATSU Jie ZHOU Hisakazu KIKUCHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2002/07/01
Vol. E85-A  No. 7  pp. 1696-1701
Type of Manuscript:  Special Section LETTER (Special Section on Multi-dimensional Mobile Information Networks)
Category: 
Keyword: 
multicode SSconvolutional codeiterative demodulation and decoding
 Summary | Full Text:PDF

Forward Link Performance of TDMA/W-CDMA Spectrum Overlaid System with Interference Cancellation for Future Wireless Communications
Jie ZHOU Hisakazu KIKUCHI Shigenobu SASAKI Shogo MURAMATSU Yoshikuni ONOZATO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2002/07/01
Vol. E85-A  No. 7  pp. 1536-1545
Type of Manuscript:  Special Section PAPER (Special Section on Multi-dimensional Mobile Information Networks)
Category: 
Keyword: 
code division multiple access (CDMA)time-division multiple access (TDMA)TDMA/W-CDMA overlaid systemnotch filtersignal clipper
 Summary | Full Text:PDF

Iterative Demodulation and Decoding for Parallel Combinatorial SS Systems
Ken-ichi TAKIZAWA Shigenobu SASAKI Shogo MURAMATSU Hisakazu KIKUCHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2001/12/01
Vol. E84-A  No. 12  pp. 2991-2999
Type of Manuscript:  Special Section PAPER (Special Section on Spread Spectrum Techniques and Applications)
Category: 
Keyword: 
spread spectrummulti-code CDMAiterative decodingchannel coding
 Summary | Full Text:PDF

Memory Access Estimation of Filter Bank Implementation on Different DSP Architectures
Naoki MIZUTANI Shogo MURAMATSU Hisakazu KIKUCHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2001/08/01
Vol. E84-A  No. 8  pp. 1951-1959
Type of Manuscript:  Special Section PAPER (Special Section on Digital Signal Processing)
Category: Implementations of Signal Processing Systems
Keyword: 
digital signal processor (DSP)filter bankwavelet transformmultiplier and accumulator (MAC)
 Summary | Full Text:PDF

Motion Estimation with Power Scalability and Its VHDL Model
Ayuko TAKAGI Shogo MURAMATSU Hitoshi KIYA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2000/08/25
Vol. E83-A  No. 8  pp. 1608-1613
Type of Manuscript:  Special Section PAPER (Special Section on Digital Signal Processing)
Category: Implementations of Signal Processing Systems
Keyword: 
low powermotion estimationMPEGless gray level image
 Summary | Full Text:PDF

A Bit-Operation Algorithm of the Median-Cut Quantization and Its Hardware Architecture
Shogo MURAMATSU Hitoshi KIYA Akihiko YAMADA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2000/02/25
Vol. E83-A  No. 2  pp. 320-328
Type of Manuscript:  Special Section PAPER (Special Section on Intelligent Signal and Image Processing)
Category: 
Keyword: 
adaptive quantizationmedian valuemotion estimationVLSI
 Summary | Full Text:PDF

The Two-Dimensional Lapped Hadamard Transform
Shogo MURAMATSU Akihiko YAMADA Hitoshi KIYA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1998/08/25
Vol. E81-A  No. 8  pp. 1542-1549
Type of Manuscript:  Special Section PAPER (Special Section on Digital Signal Processing)
Category: 
Keyword: 
image processingparaunitary systemsymmetric extensionlapped transformlattice structure
 Summary | Full Text:PDF

Multidimensional Multirate Filter and Filter Bank without Checkerboard Effect
Yasuhiro HARADA Shogo MURAMATSU Hitoshi KIYA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1998/08/25
Vol. E81-A  No. 8  pp. 1607-1615
Type of Manuscript:  Special Section PAPER (Special Section on Digital Signal Processing)
Category: 
Keyword: 
multidimensional signal processingmultirate filtermultirate filter bankcheckerboard effect
 Summary | Full Text:PDF

A Design Method of Odd-Channel Linear-Phase Paraunitary Filter Banks with a Lattice Structure
Shogo MURAMATSU Hitoshi KIYA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1998/05/25
Vol. E81-A  No. 5  pp. 976-980
Type of Manuscript:  LETTER
Category: Digital Signal Processing
Keyword: 
multirate filter banksparaunitary systemlinear-phase filtersubband image codingnon-linear optimization
 Summary | Full Text:PDF

FFT-Based Implementation of Sampling Rate Conversion with a Small Number of Delays
Xiaoxia ZOU Shogo MURAMATSU Hitoshi KIYA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1997/08/25
Vol. E80-A  No. 8  pp. 1367-1375
Type of Manuscript:  Special Section PAPER (Special Section on Digital Signal Processing)
Category: 
Keyword: 
multirate signal processingsampling rate conversionoverlap-add/save method
 Summary | Full Text:PDF

A New Factorization Technique for the Generalized Linear-Phase LOT and Its Fast Implementation
Shogo MURAMATSU Hitoshi KIYA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1996/08/25
Vol. E79-A  No. 8  pp. 1173-1179
Type of Manuscript:  Special Section PAPER (Special Section on Digital Signal Processing)
Category: 
Keyword: 
multirate filter banksparaunitary systemlinear-phase filtersubband image coding
 Summary | Full Text:PDF

Parallel Processing Techniques for Multidimensional Sampling Lattice Alteration Based on Overlap-Add and Overlap-Save Methods
Shogo MURAMATSU Hitoshi KIYA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1995/08/25
Vol. E78-A  No. 8  pp. 934-943
Type of Manuscript:  Special Section PAPER (Special Section on Digital Signal Processing)
Category: 
Keyword: 
multidimensional signal processingmultirate signal processingparallel processingoverlap-add/save method
 Summary | Full Text:PDF

Scale Factor of Resolution Conversion Based on Orthogonal Transforms
Shogo MURAMATSU Hitoshi KIYA Masahiko SAGAWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1993/07/25
Vol. E76-A  No. 7  pp. 1150-1153
Type of Manuscript:  Special Section LETTER (Special Section of Letters Selected from the 1993 IEICE Spring Conference)
Category: 
Keyword: 
digital image processingfilter banksresolution conversionorthogonal transform
 Summary | Full Text:PDF