Hiroshi NAGAHASHI


Penalized AdaBoost: Improving the Generalization Error of Gentle AdaBoost through a Margin Distribution
Shuqiong WU Hiroshi NAGAHASHI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2015/11/01
Vol. E98-D  No. 11  pp. 1906-1915
Type of Manuscript:  PAPER
Category: Artificial Intelligence, Data Mining
Keyword: 
Gentle AdaBoostgeneralization errormachine learningmodest AdaBoosttraining error
 Summary | Full Text:PDF(2MB)

Analysis of Noteworthy Issues in Illumination Processing for Face Recognition
Min YAO Hiroshi NAGAHASHI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2015/03/01
Vol. E98-D  No. 3  pp. 681-691
Type of Manuscript:  PAPER
Category: Image Recognition, Computer Vision
Keyword: 
face recognitionillumination processingnoteworthy issuesanalysisevaluation
 Summary | Full Text:PDF(2.8MB)

Resolution Scaling for Mass Spring Model Simulations
Maciej KOT Hiroshi NAGAHASHI Krzysztof GRACKI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2014/08/01
Vol. E97-D  No. 8  pp. 2138-2146
Type of Manuscript:  PAPER
Category: Computer Graphics
Keyword: 
level of detailmass spring modelsoft body deformation
 Summary | Full Text:PDF(2.4MB)

Illumination Normalization-Based Face Detection under Varying Illumination
Min YAO Hiroshi NAGAHASHI Kota AOKI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2014/06/01
Vol. E97-D  No. 6  pp. 1590-1598
Type of Manuscript:  PAPER
Category: Image Recognition, Computer Vision
Keyword: 
illumination normalizationOtsu methodsegmentation-basedHaar-like face detectorLBP face detector
 Summary | Full Text:PDF(4MB)

Visual Correspondence Grouping via Local Consistent Neighborhood
Kota AOKI Hiroshi NAGAHASHI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2013/06/01
Vol. E96-D  No. 6  pp. 1351-1358
Type of Manuscript:  PAPER
Category: Pattern Recognition
Keyword: 
correspondencegraphobject recognitionobject detection
 Summary | Full Text:PDF(2MB)

Classification of Prostate Histopathology Images Based on Multifractal Analysis
Chamidu ATUPELAGE Hiroshi NAGAHASHI Masahiro YAMAGUCHI Tokiya ABE Akinori HASHIGUCHI Michiie SAKAMOTO 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2012/12/01
Vol. E95-D  No. 12  pp. 3037-3045
Type of Manuscript:  PAPER
Category: Pattern Recognition
Keyword: 
histopathologyprostate cancerfractal geomatrymultifractalfeature descriptorsclassification
 Summary | Full Text:PDF(762.6KB)

Image Categorization Using Scene-Context Scale Based on Random Forests
Yousun KANG Hiroshi NAGAHASHI Akihiro SUGIMOTO 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2011/09/01
Vol. E94-D  No. 9  pp. 1809-1816
Type of Manuscript:  PAPER
Category: Image Recognition, Computer Vision
Keyword: 
scene-context scaleimage categorizationrandomized decision treesrandom forestsmulti-scale texton forests
 Summary | Full Text:PDF(1.9MB)

3D Triangular Mesh Parameterization with Semantic Features Based on Competitive Learning Methods
Shun MATSUI Kota AOKI Hiroshi NAGAHASHI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2008/11/01
Vol. E91-D  No. 11  pp. 2718-2726
Type of Manuscript:  PAPER
Category: Computer Graphics
Keyword: 
cross-parameterizationdeformable mesh modelsdigital geometry processing
 Summary | Full Text:PDF(1.4MB)

Depth Perception from a 2D Natural Scene Using Scale Variation of Texture Patterns
Yousun KANG Hiroshi NAGAHASHI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2006/03/01
Vol. E89-D  No. 3  pp. 1294-1298
Type of Manuscript:  LETTER
Category: Pattern Recognition
Keyword: 
depth perceptiontexture gradienthierarchical discriminant analysisautocorrelation functions
 Summary | Full Text:PDF(1.1MB)

Texture Classification Using Hierarchical Linear Discriminant Space
Yousun KANG Ken'ichi MOROOKA Hiroshi NAGAHASHI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2005/10/01
Vol. E88-D  No. 10  pp. 2380-2388
Type of Manuscript:  PAPER
Category: Image Recognition, Computer Vision
Keyword: 
texture classificationhierarchical discriminant analysis
 Summary | Full Text:PDF(1.1MB)

A Method for Watermarking to Bezier Polynomial Surface Models
Hiroshi NAGAHASHI Rikima MITSUHASHI Ken'ichi MOROOKA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2004/01/01
Vol. E87-D  No. 1  pp. 224-232
Type of Manuscript:  PAPER
Category: Computer Graphics
Keyword: 
Bezier patchsubdivisionwatermark embedding
 Summary | Full Text:PDF(809.6KB)

Parallel Computation of Parametric Piecewise Modeling Method
Hiroshi NAGAHASHI Mohamed IMINE 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2002/02/01
Vol. E85-D  No. 2  pp. 411-417
Type of Manuscript:  PAPER
Category: Computer Graphics
Keyword: 
polynomialBezierparallel computationdegree reduction
 Summary | Full Text:PDF(780.9KB)

Classification of Age Group Based on Facial Images of Young Males by Using Neural Networks
Tsuneo KANNO Masakazu AKIBA Yasuaki TERAMACHI Hiroshi NAGAHASHI Takeshi AGUI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2001/08/01
Vol. E84-D  No. 8  pp. 1094-1101
Type of Manuscript:  PAPER
Category: Biocybernetics, Neurocomputing
Keyword: 
neural networkfacial imageclassification of agemosaic featureKL feature
 Summary | Full Text:PDF(3.3MB)

BPL: A Language for Parallel Algorithms on the Butterfly Network
Fattaneh TAGHIYAREH Hiroshi NAGAHASHI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2000/07/25
Vol. E83-D  No. 7  pp. 1488-1496
Type of Manuscript:  PAPER
Category: Algorithms
Keyword: 
parallel algorithmsparallel processing butterfly networkparallel languages
 Summary | Full Text:PDF(1.2MB)

Parametric Piecewise Modeling of Bezier and Polynomial Surfaces
Mohamed IMINE Hiroshi NAGAHASHI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 1998/01/25
Vol. E81-D  No. 1  pp. 94-104
Type of Manuscript:  PAPER
Category: Image Processing,Computer Graphics and Pattern Recognition
Keyword: 
Bezier control pointspolynomial coefficientssurfacePPM
 Summary | Full Text:PDF(1.7MB)

Motion Segmentation in RGB Image Sequence Based on Stochastic Modeling
Adam KURIASKI Takeshi AGUI Hiroshi NAGAHASHI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 1996/12/25
Vol. E79-D  No. 12  pp. 1708-1715
Type of Manuscript:  PAPER
Category: Image Processing,Computer Graphics and Pattern Recognition
Keyword: 
hidden MRF modelingRGB spacemultivariate Gaussian distributionmotion segmentation
 Summary | Full Text:PDF(874.1KB)

A Direct Relation between Bezier and Polynomial Representation
Mohamed IMINE Hiroshi NAGAHASHI Takeshi AGUI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 1996/09/25
Vol. E79-D  No. 9  pp. 1279-1285
Type of Manuscript:  PAPER
Category: Image Processing,Computer Graphics and Pattern Recognition
Keyword: 
Bezierpolynomial coefficientorder reductioncriterion of reductioncontrol point
 Summary | Full Text:PDF(522.2KB)

A Method for C2 Piecewise Quartic Polynomial Interpolation
Caiming ZHANG Takeshi AGUI Hiroshi NAGAHASHI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 1996/05/25
Vol. E79-D  No. 5  pp. 584-590
Type of Manuscript:  PAPER
Category: Image Processing,Computer Graphics and Pattern Recognition
Keyword: 
computer-aided designquartic polynomialsplineC2 interpolation
 Summary | Full Text:PDF(420.4KB)

A Paint System of Monochromatic Moving Images
Hiroshi NAGAHASHI Takeshi AGUI Tatsushi ISHIGURO 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 1995/04/25
Vol. E78-D  No. 4  pp. 476-483
Type of Manuscript:  PAPER
Category: Image Processing, Computer Graphics and Pattern Recognition
Keyword: 
paint systemHSY color modelmonochromatic imagesautomatic coloring
 Summary | Full Text:PDF(866.2KB)

Piecewise Parametric Cubic Interpolation
Caiming ZHANG Takeshi AGUI Hiroshi NAGAHASHI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 1994/08/25
Vol. E77-D  No. 8  pp. 869-876
Type of Manuscript:  PAPER
Category: Algorithm and Computational Complexity
Keyword: 
data interpolationparametric polynomial
 Summary | Full Text:PDF(465.6KB)

Representation of Surfaces on 5 and 6 Sided Regions
Caiming ZHANG Takeshi AGUI Hiroshi NAGAHASHI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 1994/03/25
Vol. E77-D  No. 3  pp. 326-334
Type of Manuscript:  PAPER
Category: Image Processing, Computer Graphics and Pattern Recognition
Keyword: 
computer aided geometric designsurface representationn-sided regionboundary curvecross-boundary slope.
 Summary | Full Text:PDF(652.3KB)

Interpolation of CT Slices for Laser Stereolithography
Takanori NAGAE Takeshi AGUI Hiroshi NAGAHASHI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 1993/08/25
Vol. E76-D  No. 8  pp. 905-911
Type of Manuscript:  PAPER
Category: Image Processing, Computer Graphics and Pattern Recognition
Keyword: 
computer graphics and pattern recognitionmedical electronics and medical information
 Summary | Full Text:PDF(656.9KB)

Structural Evolution of Neural Networks Having Arbitrary Connections by a Genetic Method
Tomoharu NAGAO Takeshi AGUI Hiroshi NAGAHASHI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 1993/06/25
Vol. E76-D  No. 6  pp. 689-697
Type of Manuscript:  PAPER
Category: Bio-Cybernetics
Keyword: 
neural networkGenetic Algorithmsoptimization
 Summary | Full Text:PDF(775.6KB)

Orientable Closed Surface Construction from Volume Data
Takanori NAGAE Takeshi AGUI Hiroshi NAGAHASHI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 1993/02/25
Vol. E76-D  No. 2  pp. 269-273
Type of Manuscript:  PAPER
Category: Image Processing, Computer Graphics and Pattern Recognition
Keyword: 
computer graphics and pattern recognitionmedical electronics and medical information
 Summary | Full Text:PDF(588.3KB)

A New Method for Smooth Interpolation without Twist Constraints
Caiming ZHANG Takeshi AGUI Hiroshi NAGAHASHI Tomoharu NAGAO 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 1993/02/25
Vol. E76-D  No. 2  pp. 243-250
Type of Manuscript:  PAPER
Category: Image Processing, Computer Graphics and Pattern Recognition
Keyword: 
smooth interpolationpolynomialfair surfacetrianglebarycentric coordinates
 Summary | Full Text:PDF(688.5KB)

A Query Translation System Based on Map Expressions
Hiroshi NAGAHASHI Adel SHEFFI Mikio NAKATSUYAMA 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1990/01/25
Vol. E73-E  No. 1  pp. 155-164
Type of Manuscript:  PAPER
Category: Databases
Keyword: 
 Summary | Full Text:PDF(774.7KB)

A Pattern Generation Method of Chinese Characters
Hiroshi NAGAHASHI Mikio NAKATSUYAMA Norio NISHIZUKA Takeshi AGUI 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1982/11/25
Vol. E65-E  No. 11  pp. 607-613
Type of Manuscript:  PAPER
Category: Data Processing
Keyword: 
 Summary | Full Text:PDF(482.3KB)