Yoshiaki SHIRAI


New Weakness in the Key-Scheduling Algorithm of RC4
Toshihiro OHIGASHI  Yoshiaki SHIRAISHI  Masakatu MORII 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2008/01/01
Vol. E91-A  No. 1  pp. 3-11
Type of Manuscript: Special Section PAPER (Special Section on Cryptography and Information Security)
Category: Symmetric Cryptography
Keyword: 
cryptanalysisstream cipherRC4key scheduling algorithm
  Summary |  Full Text:PDF (309.5KB)

Robust Face Recognition under Various Illumination Conditions
Atsushi MATSUMOTO  Yoshiaki SHIRAI  Nobutaka SHIMADA  Takuro SAKIYAMA  Jun MIURA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2006/07/01
Vol. E89-D  No. 7  pp. 2157-2163
Type of Manuscript: Special Section PAPER (Special Section on Machine Vision Applications)
Category: Face, Gesture, and Action Recognition
Keyword: 
face recognitionmutual subspace methodnormalization of illuminationmultiple subspaces
  Summary |  Full Text:PDF (768.8KB)

Internal-State Reconstruction of a Stream Cipher RC4
Yoshiaki SHIRAISHI  Toshihiro OHIGASHI  Masakatu MORII 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2003/10/01
Vol. E86-A  No. 10  pp. 2636-2638
Type of Manuscript: Special Section LETTER (Special Section on Information Theory and Its Applications)
Category: Information Security
Keyword: 
stream cipherRC4internal-state reconstruction
  Summary |  Full Text:PDF (149.4KB)

Recognition of Two-Hand Gestures Using Coupled Switching Linear Model
Mun-Ho JEONG  Yoshinori KUNO  Nobutaka SHIMADA  Yoshiaki SHIRAI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2003/08/01
Vol. E86-D  No. 8  pp. 1416-1425
Type of Manuscript: PAPER
Category: Image Processing, Image Pattern Recognition
Keyword: 
gesture recognitionEM algorithmcouplingswitching linear model
  Summary |  Full Text:PDF (1.3MB)

A Method for Improving Fast Correlation Attack Using Parity Check Equations Modifications
Youji FUKUTA  Yoshiaki SHIRAISHI  Masakatu MORII 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2003/08/01
Vol. E86-A  No. 8  pp. 2155-2158
Type of Manuscript: LETTER
Category: Information Security
Keyword: 
stream ciphernonlinear combiner generatorfast correlation attackparity check equations
  Summary |  Full Text:PDF (190.1KB)

An Active Vision System for On-Line Traffic Sign Recognition
Jun MIURA  Tsuyoshi KANDA  Shusaku NAKATANI  Yoshiaki SHIRAI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2002/11/01
Vol. E85-D  No. 11  pp. 1784-1792
Type of Manuscript: Special Section PAPER (Special Issue on Information System Technologies for ITS)
Category: 
Keyword: 
traffic sign recognitionactive visionreal-time visionITS
  Summary |  Full Text:PDF (1.9MB)

Recognition of Shape-Changing Hand Gestures
Mun-Ho JEONG  Yoshinori KUNO  Nobutaka SHIMADA  Yoshiaki SHIRAI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2002/10/01
Vol. E85-D  No. 10  pp. 1678-1687
Type of Manuscript: PAPER
Category: Multimedia Pattern Processing
Keyword: 
gesture recognitionactive contourswitching linear model
  Summary |  Full Text:PDF (715.1KB)

Robust Visual Tracking by Integrating Various Cues
Yoshiaki SHIRAI  Tsuyoshi YAMANE  Ryuzo OKADA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 1998/09/20
Vol. E81-D  No. 9  pp. 951-958
Type of Manuscript: INVITED PAPER (Special Issue on Multisensor Fusion and Integration)
Category: 
Keyword: 
image sequencesensor fusiontrackingoptical flowuniform region
  Summary |  Full Text:PDF (1.6MB)

Active Sensor Fusion for Collision Avoidance in Behaviour-Based Mobile Robots
Terence Chek Hion HENG  Yoshinori KUNO  Yoshiaki SHIRAI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 1998/05/20
Vol. E81-D  No. 5  pp. 448-456
Type of Manuscript: PAPER
Category: Image Processing,Computer Graphics and Pattern Recognition
Keyword: 
mobile robotbehaviour-based robotsonar sensingsensor fusionactive vision
  Summary |  Full Text:PDF (965.8KB)

Vision-Based Human Interface System with World-Fixed and Human-Centered Frames Using Multiple View Invariance
Kang-Hyun JO  Kentaro HAYASHI  Yoshinori KUNO  Yoshiaki SHIRAI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 1996/06/20
Vol. E79-D  No. 6  pp. 799-808
Type of Manuscript: Special Section PAPER (Special Issue on Multimedia Computing and Communications)
Category: 
Keyword: 
human interface systemgesture recognitionaffine invariantsworld-fixed framehuman-centered frame
  Summary |  Full Text:PDF (1023.9KB)

Motion Description and Segmentation of Multiple Moving Objects in a Long Image Sequence
Haisong GU  Yoshiaki SHIRAI  Minoru ASADA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 1995/03/20
Vol. E78-D  No. 3  pp. 277-289
Type of Manuscript: PAPER
Category: Image Processing, Computer Graphics and Pattern Recognition
Keyword: 
spatiotemporal segmentationmultiple moving objectsMDL principlemotion description
  Summary |  Full Text:PDF (1.1MB)

FOREWORD
Yoshiaki SHIRAI  Kenichiro ISHII 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 1995/01/20
Vol. E78-D  No. 1  pp. 1-2
Type of Manuscript: FOREWORD
Category: 
Keyword: 
  Summary |  Full Text:PDF (149.4KB)

FOREWORD
Yoshiaki SHIRAI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 1994/11/20
Vol. E77-D  No. 11  pp. 1197-1197
Type of Manuscript: FOREWORD
Category: 
Keyword: 
  Summary |  Full Text:PDF (72.6KB)

Segmentation Based on Accumulative Observation of Apparent Motion in Long Image Sequences
Hsiao-Jing CHEN  Yoshiaki SHIRAI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 1994/06/20
Vol. E77-D  No. 6  pp. 694-704
Type of Manuscript: PAPER
Category: Image Processing, Computer Graphics and Pattern Recognition
Keyword: 
image processingoptical flowsegmentationlong sequencestemporal coherence
  Summary |  Full Text:PDF (1.4MB)

Scene Interpretation with Default Parameter Models and Qualitative Constraints
Michael HILD  Yoshiaki SHIRAI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 1993/12/20
Vol. E76-D  No. 12  pp. 1510-1520
Type of Manuscript: PAPER
Category: Image Processing, Computer Graphics and Pattern Recognition
Keyword: 
scene interpretationfeature variability problemlocal feature default modelsqualitative constraintscore regions
  Summary |  Full Text:PDF (1.7MB)

Detecting Multiple Rigid Image Motions from an Optical Flow Field Obtained with Multi-Scale, Multi-Orientation Filters
Hsiao-Jing CHEN  Yoshiaki SHIRAI  Minoru ASADA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 1993/10/20
Vol. E76-D  No. 10  pp. 1253-1262
Type of Manuscript: PAPER
Category: Image Processing, Computer Graphics and Pattern Recognition
Keyword: 
motion analysisoptical flowmulti-filteringuncertainty of flow vectormotion-based segmentation
  Summary |  Full Text:PDF (1.2MB)

Integration of Color and Range Data for Three-Dimensional Scene Description
Akira OKAMOTO  Yoshiaki SHIRAI  Minoru ASADA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 1993/04/20
Vol. E76-D  No. 4  pp. 501-506
Type of Manuscript: Special Section PAPER (Special Issue on Image Processing and Understanding)
Category: 
Keyword: 
image understandingrange datasensor fusionscene descriptioncolor imagestereo vision
  Summary |  Full Text:PDF (558.6KB)

Building a 3-D World Representation for Dynamic Scenes from Range Image Sequences
Minoru ASADA  Masahiro KIMURA  Yoshiaki SHIRAI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 1991/10/20
Vol. E74-D  No. 10  pp. 3433-3443
Type of Manuscript: Special Section PAPER (Special Issue on Computer Vision and Its Applications)
Category: 
Keyword: 
  Summary |  Full Text:PDF (1020.4KB)