Yuji IWAHORI


Robust Method for Recovering Sign of Gaussian Curvature from Multiple Shading Images
Shinji FUKUI  Yuji IWAHORI  Robert J. WOODHAM  Kenji FUNAHASHI  Akira IWATA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2001/12/01
Vol. E84-D  No. 12  pp. 1633-1641
Type of Manuscript: Special Section PAPER (Special Issue on Machine Vision Applications)
Category: 
Keyword: 
Gaussian curvatureshape representation and recoveryphysics-based visionprincipal component analysis
  Summary |  Full Text:PDF (3.7MB)

Enhanced Look-Ahead Scheduling Technique to Overlap Communication with Computation
Dingchao LI  Yuji IWAHORI  Tatsuya HAYASHI  Naohiro ISHII 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 1998/11/20
Vol. E81-D  No. 11  pp. 1205-1212
Type of Manuscript: PAPER
Category: Sofware System
Keyword: 
parallelizing compilersinterprocessor communicationprogram optimizationcompile-time scheduling heuristicsdirected acyclic graphs
  Summary |  Full Text:PDF (745.3KB)

Classification of Surface Curvature from Shading Images Using Neural Network
Yuji IWAHORI  Shinji FUKUI  Robert J. WOODHAM  Akira IWATA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 1998/08/20
Vol. E81-D  No. 8  pp. 889-900
Type of Manuscript: PAPER
Category: Image Processing,Computer Graphics and Pattern Recognition
Keyword: 
shape representation and recoveryphysics-based visionphotometric stereoradial basis function neural networkcurvature
  Summary |  Full Text:PDF (1.2MB)

Accuracy of the Minimum Time Estimate for Programs on Heterogeneous Machines
Dingchao LI  Yuji IWAHORI  Naohiro ISHII 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 1998/01/20
Vol. E81-D  No. 1  pp. 19-26
Type of Manuscript: PAPER
Category: Computer Systems
Keyword: 
parallel processingheterogeneous machines compile-time schedulingdirected acyclic graphslower time bounds
  Summary |  Full Text:PDF (754.6KB)

Neural Network Based Photometric Stereo with a Nearby Rotational Moving Light Source
Yuji IWAHORI  Robert J. WOODHAM  Masahiro OZAKI  Hidekazu TANAKA  Naohiro ISHII 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 1997/09/20
Vol. E80-D  No. 9  pp. 948-957
Type of Manuscript: PAPER
Category: Image Processing,Computer Graphics and Pattern Recognition
Keyword: 
photometric stereoneural networkprincipal components analysiscast shadowsinter-reflection
  Summary |  Full Text:PDF (901.5KB)

A Lookahead Heuristic for Heterogeneous Multiprocessor Scheduling with Communication Costs
Dingchao LI  Akira MIZUNO  Yuji IWAHORI  Naohiro ISHII 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 1997/04/20
Vol. E80-D  No. 4  pp. 489-494
Type of Manuscript: Special Section PAPER (Special Issue on Parallel and Distributed Supercomputing)
Category: 
Keyword: 
parallel processingheterogeneous multiprocessorstask graphscommunication costsscheduling heuristics
  Summary |  Full Text:PDF (568.5KB)

Moving Point Light Source Photometric Stereo
Yuji IWAHORI  Robert J. WOODHAM  Hidekazu TANAKA  Naohiro ISHII 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 1994/08/20
Vol. E77-D  No. 8  pp. 925-929
Type of Manuscript: LETTER
Category: Image Processing, Computer Graphics and Pattern Recognition
Keyword: 
shape from shadingphotometric stereoLambertian reflectance
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Photometric Stereo for Specular Surface Shape Based on Neural Network
Yuji IWAHORI  Hidekazu TANAKA  Robert J. WOODHAM  Naohiro ISHII 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 1994/04/20
Vol. E77-D  No. 4  pp. 498-506
Type of Manuscript: Special Section PAPER (Special Issue on Neurocomputing)
Category: Image Processing
Keyword: 
neural networkcomputer visionshape from shadingphotometric stereoPhong reflectance function
  Summary |  Full Text:PDF (817.2KB)

Extraction of Feature Attentive Regions in a Learnt Neural Network
Hideki SANO  Atsuhiro NADA  Yuji IWAHORI  Naohiro ISHII 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 1994/04/20
Vol. E77-D  No. 4  pp. 482-489
Type of Manuscript: Special Section PAPER (Special Issue on Neurocomputing)
Category: Image Processing
Keyword: 
neural networkdegree of dependencepattern classification
  Summary |  Full Text:PDF (705.9KB)

Shape Reconstruction of Object from an Image under a Point Light Source Illumination
Yuji IWAHORI  Hidezumi SUGIE  Hiroyuki KAMEI  Shoichiro YAMAGUCHI 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1989/07/20
Vol. E72-E  No. 7  pp. 852-862
Type of Manuscript: PAPER
Category: Image Processing, Computer Graphics and Pattern Recognition
Keyword: 
  Summary |  Full Text:PDF (766.4KB)