Gosuke OHASHI


Accuracy Improvement of Estimated Perceived Brightness Maps by Helmholtz-Kohlrausch Effect Using a Correction Coefficient
Shinichi HASHIMOTO Takaya SHIZUME Hiroaki TAKAMATSU Yoshifumi SHIMODAIRA Gosuke OHASHI 
Publication:   
Publication Date: 2017/02/01
Vol. E100-A  No. 2  pp. 565-571
Type of Manuscript:  Special Section PAPER (Special Section on Image Media Quality)
Category: HUMAN PERCEPTION
Keyword: 
Helmholtz-Kohlrausch effectnatural imagesperceived brightnesssubjective evaluation experiment
 Summary | Full Text:PDF(5.4MB)

Estimation of Subjective Image Quality for Combinations of Display Physical Factors Based on the Mahalanobis-Taguchi System
Yusuke AMANO Gosuke OHASHI Shogo MORI Kazuya SAWADA Takeshi HOSHINO Yoshifumi SHIMODAIRA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2015/08/01
Vol. E98-A  No. 8  pp. 1743-1746
Type of Manuscript:  Special Section LETTER (Special Section on Image Media Quality)
Category: 
Keyword: 
display physical factorsestimation methodimage qualitymahalanobis-taguchi system
 Summary | Full Text:PDF(357.1KB)

Offline Vehicle Detection at Night Using Center Surround Extremas
Naoya KOSAKA Ryota OGURA Gosuke OHASHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2015/08/01
Vol. E98-A  No. 8  pp. 1727-1734
Type of Manuscript:  Special Section PAPER (Special Section on Image Media Quality)
Category: 
Keyword: 
ITSoffline environmentnighttime driving scenesvehicle detectionCenSurE
 Summary | Full Text:PDF(3MB)

Object Extraction Using an Edge-Based Feature for Query-by-Sketch Image Retrieval
Takuya TAKASU Yoshiki KUMAGAI Gosuke OHASHI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2015/01/01
Vol. E98-D  No. 1  pp. 214-217
Type of Manuscript:  LETTER
Category: Image Processing and Video Processing
Keyword: 
query-by-sketch image retrievalobject extractionpartial image retrievaledge-based feature
 Summary | Full Text:PDF(2.5MB)

Study of Reducing Circuit Scale Associated with Bit Depth Expansion Using Predictive Gradation Detection Algorithm
Akihiro NAGASE Nami NAKANO Masako ASAMURA Jun SOMEYA Gosuke OHASHI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2014/05/01
Vol. E97-D  No. 5  pp. 1283-1292
Type of Manuscript:  PAPER
Category: Image Processing and Video Processing
Keyword: 
bit depth expansioncircuit sizeIIR filtergradation pridiction algorithm
 Summary | Full Text:PDF(1.1MB)

Pixel-Wise Noise Level Estimation for Images
Yusuke AMANO Gosuke OHASHI Yoshifumi SHIMODAIRA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2013/08/01
Vol. E96-A  No. 8  pp. 1821-1823
Type of Manuscript:  LETTER
Category: Image
Keyword: 
noise levelpixel-wisesingle image
 Summary | Full Text:PDF(522.3KB)

Query-by-Sketch Image Retrieval Using Edge Relation Histogram
Yoshiki KUMAGAI Gosuke OHASHI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2013/02/01
Vol. E96-D  No. 2  pp. 340-348
Type of Manuscript:  PAPER
Category: Image Processing and Video Processing
Keyword: 
image retrievalfeature extractionedge imagesketch image
 Summary | Full Text:PDF(2.2MB)

Robustness of Image Quality Factors for Environment Illumination
Shogo MORI Gosuke OHASHI Yoshifumi SHIMODAIRA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2012/12/01
Vol. E95-A  No. 12  pp. 2498-2501
Type of Manuscript:  LETTER
Category: Image
Keyword: 
display human factorsimage qualityparameter designmahalanobis distance
 Summary | Full Text:PDF(767.9KB)

Interactive Support System for Image Quality Enhancement Focused on Lightness, Color and Sharpness
Kazune AOIKE Gosuke OHASHI Yuichiro TOKUDA Yoshifumi SHIMODAIRA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2011/02/01
Vol. E94-A  No. 2  pp. 500-508
Type of Manuscript:  Special Section PAPER (Special Section on Image Media Quality)
Category: Evaluation
Keyword: 
interactive evolutionary computationimage quality enhancementhuman sensitivity and subjectivity
 Summary | Full Text:PDF(2.6MB)

Query-by-Sketch Image Retrieval Using Similarity in Stroke Order
Takashi HISAMORI Toru ARIKAWA Gosuke OHASHI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2010/06/01
Vol. E93-D  No. 6  pp. 1459-1469
Type of Manuscript:  Special Section PAPER (Special Section on Info-Plosion)
Category: Image Retrieval
Keyword: 
data miningExpected Search Length (ESL)image retrievalrelevance feedback
 Summary | Full Text:PDF(975.1KB)

Development of a Camera System for the Acquisition of High-Fidelity Colors
Tahseen EJAZ Tomohiro HORIUCHI Gosuke OHASHI Yoshifumi SHIMODAIRA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2006/10/01
Vol. E89-C  No. 10  pp. 1441-1447
Type of Manuscript:  INVITED PAPER (Special Section on Electronic Displays)
Category: 
Keyword: 
cameraCCDcolorfidelityXYZgamut
 Summary | Full Text:PDF(819.7KB)

Improvement in Evaluation Method of Overall Picture Quality by Weighting Factors of an Estimation Equation on LCDs
Takahiro OZAWA Yoshifumi SHIMODAIRA Gosuke OHASHI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2004/11/01
Vol. E87-C  No. 11  pp. 1975-1981
Type of Manuscript:  INVITED PAPER (Special Section on Electronic Displays)
Category: 
Keyword: 
LCDpicture qualityevaluation methodviewing angle
 Summary | Full Text:PDF(1.8MB)