Keiichiro Shirai

Publication Activity (10 Years)

Years Active: 2008-2022
Publications (10 Years): 46

Top Topics

Polynomial Approximation

Color Distribution

Sensor Networks

Top Venues

Publications

Gou Koutaki, Sakino Ando, Keiichiro Shirai, Tsuyoshi Kishigami
ISHIGAKI Retrieval System Using 3D Shape Matching and Combinatorial Optimization. Int. J. Comput. Vis. 130 (9) (2022)
Kosuke Ota, Keiichiro Shirai, Hidetoshi Miyao, Minoru Maruyama
Multimodal Analogy-Based Image Retrieval by Improving Semantic Embeddings. J. Adv. Comput. Intell. Intell. Informatics 26 (6) (2022)
Yoichi Matsubara, Keiichiro Shirai, Yuya Ito, Kiyoshi Tanaka
Pixel-wise parallel calculation for depth from focus with adaptive focus measure. Multidimens. Syst. Signal Process. 33 (1) (2022)
Yuki Nishio, Osamu Takyu, Hayato Soya, Keiichiro Shirai, Mai Ohta, Takeo Fujii
Optimal Construction of Access Rate to Superior Channel in Rendezvous Channel Based on Channel-Occupancy Ratio. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (1) (2021)
Kenichiro Yamamoto, Osamu Takyu, Keiichiro Shirai, Yasushi Fuwa
Spatial Compression of Sensing Information for Exploiting the Vacant Frequency Resource Using Radio Sensors. IEICE Trans. Commun. (10) (2021)
Keiichiro Shirai, Tatsuya Baba, Shunsuke Ono, Masahiro Okuda, Yusuke Tatesumi, Paul Perrotin
Guided Facial Skin Color Correction. CoRR (2021)
Keiichiro Shirai, Yuya Ito, Hidetoshi Miyao, Minoru Maruyama
Efficient Pixel-Wise SVD Required for Image Processing Using the Color Line Feature. IEEE Access 9 (2021)
Gou Koutaki, Keiichiro Shirai
Multiplexing Display using Vector Error Propagation and Smooth Active Shutter. SIGGRAPH Emerging Technologies (2020)
Kenichiro Yamamoto, Osamu Takyu, Keiichiro Shirai, Yasushi Fuwa
Spatial Compression of Sensing Information for Exploiting the Vacant Frequency Resource using Radio Sensors. ICTC (2020)
Kyosuke Fukuda, Osamu Takyu, Keiichiro Shirai, Takeo Fujii, Mai Ohta, Fumihito Sasamori, Sliiro Handa
Adaptive Transmission Control with Prediction of Sensing Results for PhyC-SN. RWS (2019)
Osamu Takyu, Keiichiro Shirai, Mai Ohta, Takeo Fujii
ID Insertion and Data Tracking with Frequency Offset for Physical Wireless Parameter Conversion Sensor Networks. Sensors 19 (4) (2019)
Sakino Ando, Gou Koutaki, Keiichiro Shirai
ISHIGAKI Retrieval through Combinatorial Optimization. SUMAC @ ACM Multimedia (2019)
Ryo Matsuoka, Keiichiro Shirai, Masahiro Okuda
Reference-based local color distribution transformation method and its application to image integration. Signal Process. Image Commun. 76 (2019)
Shuhei Yamasaki, Osamu Takyu, Keiichiro Shirai, Takeo Fujii, Mai Ohta, Fumihito Sasamori, Shiro Handa
Data Separation Considering Smoothness of Sensing Data in Physical Wireless Parameter Conversion Sensor Networks. ICOIN (2019)
Osamu Takyu, Keiichiro Shirai, Takeo Fujii, Mai Ohta
Adaptive Channel Assignment With Predictions of Sensor Results and Channel Occupancy Ratio in PhyC-SN. IEEE Access 7 (2019)
Gou Koutaki, Keiichiro Shirai, Mitsuru Ambai
Hadamard Coding for Supervised Discrete Hashing. IEEE Trans. Image Process. 27 (11) (2018)
Kazuki Yamanaka, Seisuke Kyochi, Shunsuke Ono, Keiichiro Shirai
Color Affine Subspace Pursuit for Color Artifact Removal. ICASSP (2018)
Kyosuke Fukuda, Osamu Takyu, Keiichiro Shirai, Mai Ohta, Takeo Fujii, Fumihito Sasamori, Shiro Handa
Transmit control and data separation in physical wireless parameter conversion sensor networks with event driven sensors. WiSNet (2018)
Naoya Amano, Osamu Takyu, Keiichiro Shirai, Fumihito Sasamori, Shiro Handa
Data Separation Technique using Spatial Correlation of Sensing Results for Physical Wireless Parameter Conversion Sensor Networks. APSIPA (2018)
Shuhei Yamasaki, Minato Oriuchi, Osamu Takyu, Keiichiro Shirai, Takeo Fujii, Mai Ohta, Fumihito Sasamori, Shiro Handa
A Signal Separation Method for Physical Wireless Parameter Conversion Sensor Networks Using K-Shortest Path. APSIPA (2018)
Yoichi Matsubara, Yuya Ito, Keiichiro Shirai, Kiyoshi Tanaka
A Study on Pixel-wise Parallel Calculation for Depth from Focus Using Gray Level Variance. ISPACS (2018)
Hayato Soya, Osamu Takyu, Keiichiro Shirai, Fumihito Sasamori, Shiro Handa, Mai Ohta, Takeo Fujii
Modified rendezvous scheme with inferring access channel probability of slave by master. ICOIN (2018)
Hayato Soya, Osamu Takyu, Keiichiro Shirai, Mai Ohta, Takeo Fujii, Fumihito Sasamori, Shiro Handa
Fast Rendezvous Scheme with a Few Control Signals for Multi-Channel Cognitive Radio. IEICE Trans. Commun. (7) (2018)
Koichi Eto, Gou Koutaki, Keiichiro Shirai
Hadamard Coded Discrete Cross Modal Hashing. ICIP (2018)
Ryuji Kurihara, Shunsuke Ono, Keiichiro Shirai, Masahiro Okuda
Hyperspectral image restoration based on spatio-spectral structure tensor regularization. EUSIPCO (2017)
Masaki Onuki, Shunsuke Ono, Keiichiro Shirai, Yuichi Tanaka
Fast Singular Value Shrinkage with Chebyshev Polynomial Approximation Based on Signal Sparsity. CoRR (2017)
Kosuke Ota, Keiichiro Shirai, Hidetoshi Miyao, Minoru Maruyama
Interactive Image Search System Based on Multimodal Analogy. HCI (30) (2017)
Takuya Sugimoto, Kazuhiro Fujimori, Keiichiro Shirai, Hidetoshi Miyao, Minoru Maruyama
Principal noiseless color component extraction by linear color composition with optimal coefficients. ICIP (2017)
Keiichiro Shirai, Shunsuke Ono, Masahiro Okuda
Frequency spectrum regularization for pattern noise removal based on image decomposition. EUSIPCO (2017)
Takehiro Sakai, Osamu Takyu, Keiichiro Shirai, Mai Ohta, Takeo Fujii, Fumihito Sasamori, Shiro Handa
Data Tracking Using Frequency Offset and SIC for Physical Wireless Conversion Sensor Networks. WCNC Workshops (2017)
Masaki Onuki, Shunsuke Ono, Keiichiro Shirai, Yuichi Tanaka
Fast Singular Value Shrinkage With Chebyshev Polynomial Approximation Based on Signal Sparsity. IEEE Trans. Signal Process. 65 (22) (2017)
Hayato Soya, Osamu Takyu, Keiichiro Shirai, Mai Ohta, Takeo Fujii, Fumihito Sasamori, Shiro Handa
Measurement Technique for Occupancy Ratio and Transition Ratio in Cognitive Radio System. WCNC Workshops (2017)
Shunsuke Ono, Keiichiro Shirai, Masahiro Okuda
Vectorial total variation based on arranged structure tensor for multichannel image restoration. ICASSP (2016)
Minato Oriuchi, Osamu Takyu, Keiichiro Shirai, Fumihito Sasamori, Shiro Handa, Mai Ohta, Takeo Fujii
Fundamental study of decomposition based on heterogeneous sensing data in physical conversion sensor networks. APSIPA (2016)
Gou Koutaki, Keiichiro Shirai, Mitsuru Ambai
Fast Supervised Discrete Hashing and its Analysis. CoRR (2016)
Minato Oriuchi, Osamu Takyu, Keiichiro Shirai, Takeo Fujii, Mai Ohta, Fumihito Sasamori, Shiro Handa
Multi-target tracking based on features of sensing results and wireless parameters for physical wireless parameter conversion sensor networks. RWS (2016)
Tatsuya Baba, Ryo Matsuoka, Keiichiro Shirai, Masahiro Okuda
Misaligned Image Integration With Local Linear Model. IEEE Trans. Image Process. 25 (5) (2016)
Mia Rizkinia, Tatsuya Baba, Keiichiro Shirai, Masahiro Okuda
Local Spectral Component Decomposition for Multi-Channel Image Denoising. IEEE Trans. Image Process. 25 (7) (2016)
Minato Oriuchi, Osamu Takyu, Keiichiro Shirai, Fumihito Sasamori, Shiro Handa, Takeo Fujii, Mai Ohta
Performance evaluation of multi-target tracking for PhyC-SN. WCNC Workshops (2016)
Masaki Onuki, Shunsuke Ono, Keiichiro Shirai, Yuichi Tanaka
Image colorization based on ADMM with fast singular value thresholding by Chebyshev polynomial approximation. ICASSP (2016)
Minato Oriuchi, Osamu Takyu, Keiichiro Shirai, Fumihito Sasamori, Shiro Handa, Takeo Fujii, Mai Ohta
Performance evaluation of multi-target tracking for PhyC-SN. WCNC (2016)
Tatsuya Baba, Masahiro Okuda, Paul Perrotin, Yusuke Tatesumi, Keiichiro Shirai
An automatic yearbook style photo generation method using color grading and guide image filtering based facial skin color correction. ACPR (2015)
Ryosuke Morita, Keiichiro Shirai, Yuichi Tanaka
Performance analysis of retargeting pyramid and its applications. ICIP (2015)
Masao Yamagishi, Seisuke Kyochi, Keiichiro Shirai, Masahiro Okuda
A regularization approach for bayer reconstruction in lossy image coding by inverse demosaicing. ICIP (2015)
Masaki Onuki, Shunsuke Ono, Keiichiro Shirai, Yuichi Tanaka
Non-local/local image filters using fast eigenvalue filtering. ICIP (2015)
Ryo Myoenzono, Osamu Takyu, Keiichiro Shirai, Takeo Fujii, Mai Ohta, Fumihito Sasamori, Shiro Handa
Data Tracking and Effect of Frequency Offset to Simultaneous Collecting Method for Wireless Sensor Networks. Int. J. Distributed Sens. Networks 11 (2015)
Ryo Kuroiwa, Ryo Matsuoka, Seisuke Kyochi, Keiichiro Shirai, Masahiro Okuda
Lossless/near-lossless color image coding by inverse demosaicing. ICASSP (2014)
Kenjiro Sugimoto, Keiichiro Shirai, Sei-ichiro Kamata
O(1) transposed bilateral filtering for optimization. APSIPA (2014)
Ryo Myoenzono, Osamu Takyu, Keiichiro Shirai, Takeo Fujii, Mai Ohta, Fumihito Sasamori, Sliiro Handa
Data tracking and effect of frequency offset to simultaneous collecting method for wireless sensor networks. ICTC (2014)
Yusuke Tatesumi, Keisuke Iwata, Keiichiro Shirai, Masahiro Okuda
Color transform between image pair using covariance correspondences of local color distributions. ICASSP (2014)
Tatsuya Baba, Ryo Matsuoka, Shunsuke Ono, Keiichiro Shirai, Masahiro Okuda
Flash/no-flash image integration using convex optimization. ICASSP (2014)
Ryosuke Morita, Keiichiro Shirai, Yuichi Tanaka
Retargeting pyramid using direct decimation. ICASSP (2014)
Keiichiro Shirai, Masahiro Okuda
FFT based solution for multivariable L2 equations using KKT system via FFT and efficient pixel-wise inverse calculation. ICASSP (2014)
Fumihiro Furukori, Shinpei Yamazaki, T. Miyagishi, Keiichiro Shirai, Masayuki Okamoto
An OCR System with OCRopus for Scientific Documents Containing Mathematical Formulas. ICDAR (2013)
Yuichi Tanaka, Keiichiro Shirai
Scalable image representation using improved retargeting pyramid. ICASSP (2013)
Ryo Matsuoka, Tatsuya Baba, Masahiro Okuda, Keiichiro Shirai
High dynamic range image acquisition using flash image. ICASSP (2013)
Kotaro Nakazawa, Keiichiro Shirai, Masayuki Okamoto, Toshio Koga
Flicker and black-streak artifact removal from images of display monitors taken by video cameras. APSIPA (2012)
Keiichiro Shirai, Masahiro Okuda, Masaaki Ikehara
Color-line vector field and local color component decomposition for smoothing and denoising of color images. ICPR (2012)
Keiichiro Shirai, Masashi Akita, Masayuki Okamoto, Kazuya Tanikawa, Takaaki Akiyama, Tetsuji Sakaguchi
Removal of Background Patterns and Signatures for Magnetic Ink Character Recognition of Checks. Document Analysis Systems (2012)
Keiichiro Shirai, Masahiro Okuda, Takao Jinno, Masayuki Okamoto, Masaaki Ikehara
Local Covariance Filtering for Color Images. ACCV (4) (2012)
Yuichi Tanaka, Keiichiro Shirai
Directional image decomposition using retargeting pyramid. APSIPA (2012)
Keiichiro Shirai, Masayuki Okamoto, Masaaki Ikehara
Noiseless no-flash photo creation by color transform of flash image. ICIP (2011)
Shinpei Yamazaki, Fumihiro Furukori, Qinzheng Zhao, Keiichiro Shirai, Masayuki Okamoto
Embedding a Mathematical OCR Module into OCRopus. ICDAR (2011)
Keiichiro Shirai, Masanori Wakabayashi, Masayuki Okamoto, Hiroaki Yamamoto
A Study for High Performance Character Extraction from Color Scene Images. Document Analysis Systems (2008)