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Keita Hirai
Keita Hirai
Associate Professor, Department of Imaging Sciences, Chiba University
Verified email at faculty.chiba-u.jp - Homepage
Title
Cited by
Cited by
Year
Multi‐primary image projector using programmable spectral light source
K Hirai, D Irie, T Horiuchi
Journal of the Society for Information Display 24 (3), 144-153, 2016
262016
Estimation of bispectral Donaldson matrices of fluorescent objects by using two illuminant projections
S Tominaga, K Hirai, T Horiuchi
JOSA A 32 (6), 1068-1078, 2015
242015
Image processing pipeline for segmentation and material classification based on multispectral high dynamic range polarimetric images
MÁ Martínez-Domingo, EM Valero, J Hernández-Andrés, S Tominaga, ...
Optics express 25 (24), 30073-30090, 2017
182017
Predicting individual emotion from perception-based non-contact sensor big data
N Komuro, T Hashiguchi, K Hirai, M Ichikawa
Scientific reports 11 (1), 2317, 2021
152021
Advances in cross-spectral iris recognition using integrated gradientface-based normalization
M Oktiana, K Saddami, F Arnia, Y Away, K Hirai, T Horiuchi, K Munadi
IEEE Access 7, 130484-130494, 2019
152019
Estimation of fluorescent Donaldson matrices using a spectral imaging system
S Tominaga, K Hirai, T Horiuchi
Optics express 26 (2), 2132-2148, 2018
152018
Spectral image analysis of mutual illumination between florescent objects
S Tominaga, K Kato, K Hirai, T Horiuchi
JOSA A 33 (8), 1476-1487, 2016
142016
High-dynamic-range spectral imaging system for omnidirectional scene capture
K Hirai, N Osawa, M Hori, T Horiuchi, S Tominaga
Journal of Imaging 4 (4), 53, 2018
122018
Cross-spectral iris recognition using phase-based matching and homomorphic filtering
M Oktiana, T Horiuchi, K Hirai, K Saddami, F Arnia, Y Away, K Munadi
Heliyon 6 (2), 2020
112020
Reduced folate carrier 1 gene expression levels are correlated with methotrexate efficacy in Japanese patients with rheumatoid arthritis
Y Tazoe, H Hayashi, S Tsuboi, T Shioura, T Matsuyama, H Yamada, ...
Drug metabolism and pharmacokinetics 30 (3), 227-230, 2015
112015
Measurement and modeling of viewing-condition-dependent spatio-velocity contrast sensitivity function
K Hirai, N Tsumura, T Nakaguchi, Y Miyake
Color and Imaging Conference 15, 106-111, 2007
102007
An LED-based spectral imaging system for surface reflectance and normal estimation
K Hirai, T Tanimoto, K Yamamoto, T Horiuchi, S Tominaga
2013 International Conference on Signal-Image Technology & Internet-Based …, 2013
92013
Metal-dielectric object classification by combining polarization property and surface spectral reflectance
S Tominaga, H Kadoi, K Hirai, T Horiuchi
Color Imaging XVIII: Displaying, Processing, Hardcopy, and Applications 8652 …, 2013
92013
The relationship between ambient illumination and psychological factors in viewing of display images
T Iwanami, A Kikuchi, T Kaneko, K Hirai, N Yano, T Nakaguchi, ...
Color Imaging XIV: Displaying, Processing, Hardcopy, and Applications 7241 …, 2009
92009
Bright solvent sensor using an inverse opal structure containing melanin-mimicking polydopamine
M Kohri, A Kobayashi, T Okoshi, H Shirasawa, K Hirai, K Ujiie, T Kojima, ...
Chemistry Letters 50 (1), 106-109, 2021
82021
Measurement and modeling of bidirectional characteristics of fluorescent objects
S Tominaga, K Hirai, T Horiuchi
Image and Signal Processing: 6th International Conference, ICISP 2014 …, 2014
82014
Video quality assessment using spatio-velocity contrast sensitivity function
K Hirai, J Tumurtogoo, A Kikuchi, N Tsumura, T Nakaguchi, Y Miyake
IEICE TRANSACTIONS on Information and Systems 93 (5), 1253-1262, 2010
82010
Measurement and modeling of chromatic spatio-velocity contrast sensitivity function and its application to video quality evaluation
K Hirai, T Mikami, N Tsumura, T Nakaguchi
Color and Imaging Conference 18, 86-91, 2010
82010
Development of wireless sensor nodes to monitor working environment and human mental conditions
N Komuro, T Hashiguchi, K Hirai, M Ichikawa
IT Convergence and Security: Proceedings of ICITCS 2020, 149-157, 2021
72021
Appearance reconstruction of fluorescent objects for different materials and light source
S Tominaga, K Kato, K Hirai, T Horiuchi
Color and imaging conference 25, 34-39, 2017
72017
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