Region-Aware and Temporally Consistent Human-Object Contact Detection in Video.

Koichi Ichige

Kaito Kira Koichi Ichige Region-Aware and Temporally Consistent Human-Object Contact Detection in Video. 2026 24182-24194 14 IEEE Access https://doi.org/10.1109/ACCESS.2026.3663594 db/journals/access/access14.html#KiraI26 streams/journals/access

Kotone Sato Steven Wandale Koichi Ichige Kazuya Kimura Ryo Sugiura Millimeter-Wave FMCW-MIMO Radar System Using Point-Cloud Feature-Based Decision Tree for Vehicle In-Cabin Infant Occupant Detection. 2026 35958-35970 14 IEEE Access https://doi.org/10.1109/ACCESS.2026.3670277 db/journals/access/access14.html#SatoWIKS26 streams/journals/access

Sota Moriyama Kaito Kira Koichi Ichige Simulated Artifacts and Data Augmentation for Real-World Video Motion Deblurring. 2026 36564-36572 14 IEEE Access https://doi.org/10.1109/ACCESS.2026.3670354 db/journals/access/access14.html#MoriyamaKI26 streams/journals/access

Rento Hagiwara Kazuki Yuasa Koichi Ichige Tatsuya Nagao Takahiro Hayashi Diffusion Model-Based Virtual 3D City Augmentation for EM-Wave Propagation Analysis. 137816-137826 2025 13 IEEE Access https://doi.org/10.1109/ACCESS.2025.3595524 db/journals/access/access13.html#HagiwaraYINH25 streams/journals/access

Tomohiro Ueyama Koichi Ichige Takahiro Murakami Multichannel Speech Enhancement Method Using Dilated Semi-Dense Convolutional Network. 1-5 2025 SiPS https://doi.org/10.1109/SiPS66314.2025.11261303 conf/sips/2025 db/conf/sips/sips2025.html#UeyamaIM25 streams/conf/sips

Sota Moriyama Koichi Ichige An Edge-Enhanced Branch for Multi-Frame Motion Deblurring. 156929-156938 2024 12 IEEE Access https://doi.org/10.1109/ACCESS.2024.3485799 db/journals/access/access12.html#MoriyamaI24 streams/journals/access

Sota Moriyama Koichi Ichige Yuichi Hori Masayuki Tachi Video Reflection Removal by Modified EDVR and 3D Convolution. 1430-1434 2024 107 IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 8 https://doi.org/10.1587/transfun.2023eal2078 db/journals/ieiceta/ieiceta107.html#MoriyamaIHT24 streams/journals/ieiceta

Keita Imaizumi Koichi Ichige Tatsuya Nagao Takahiro Hayashi Low-Cost Learning-Based Path Loss Estimation Using Correlation Graph CNN. 1072-1076 2023 August 106 IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 8 https://doi.org/10.1587/transfun.2022eal2094 db/journals/ieiceta/ieiceta106.html#ImaizumiINH23

Daiki Toda Ren Anzai Koichi Ichige Ryo Saito Daichi Ueki ECG Signal Reconstruction Using FMCW Radar and a Convolutional Neural Network for Contactless Vital-Sign Sensing. 65-73 2023 106 IEICE Trans. Commun. 1 https://doi.org/10.1587/transcom.2022ebp3005 db/journals/ieicetb/ieicetb106.html#TodaAISU23

Steven Wandale Koichi Ichige A Generalized Extended Nested Array Design via Maximum Inter-Element Spacing Criterion. 31-35 2023 30 IEEE Signal Process. Lett. https://doi.org/10.1109/LSP.2023.3238912 db/journals/spl/spl30.html#WandaleI23

Steven Wandale Koichi Ichige xMISC: Improved Sparse Linear Array via Maximum Inter-Element Spacing Concept. 1327-1331 2023 30 IEEE Signal Process. Lett. https://doi.org/10.1109/LSP.2023.3316018 db/journals/spl/spl30.html#WandaleI23a

Rento Hagiwara Koichi Ichige Tatsuya Nagao Takahiro Hayashi Feature Extraction Using Hough Transform in Radio Propagation Estimation. 1-5 2023 VTC Fall https://doi.org/10.1109/VTC2023-Fall60731.2023.10333536 conf/vtc/2023f db/conf/vtc/vtc2023f.html#HagiwaraINH23 Keita Imaizumi Koichi Ichige Tatsuya Nagao Takahiro Hayashi Low-Cost Path Loss Estimation Using Correlation Graph CNN with Novel Feature Parameters. 1-5 2023 VTC2023-Spring https://doi.org/10.1109/VTC2023-Spring57618.2023.10200066 conf/vtc/2023s db/conf/vtc/vtc2023s.html#ImaizumiINH23

Kumar Vijay Mishra Ahmet M. Elbir Koichi Ichige Sparse Array Design for Direction Finding using Deep Learning. 2023 abs/2308.04615 CoRR https://doi.org/10.48550/arXiv.2308.04615 db/journals/corr/corr2308.html#abs-2308-04615

Shohei Hamada Koichi Ichige Katsuhisa Kashiwagi Nobuya Arakawa Ryo Saito Accurate Source-Number Estimation Using Denoising Preprocessing and Singular Value Decomposition. 766-774 2022 105-B IEICE Trans. Commun. 6 https://doi.org/10.1587/transcom.2021isp0003 db/journals/ieicetb/ieicetb105.html#HamadaIKAS22

Steven Wandale Koichi Ichige Flexible extended nested arrays for DOA estimation: Degrees of freedom perspective. 108710 2022 201 Signal Process. https://doi.org/10.1016/j.sigpro.2022.108710 db/journals/sigpro/sigpro201.html#WandaleI22

Steven Wandale Koichi Ichige Flexible Extended Nested Array with Multiple Subarrays Achieving Improved Degrees of Freedom. 1931-1935 2022 EUSIPCO https://ieeexplore.ieee.org/document/9909786 conf/eusipco/2022 db/conf/eusipco/eusipco2022.html#WandaleI22 Kazuya Inoue Keita Imaizumi Koichi Ichige Tatsuya Nagao Takahiro Hayashi Learning-Based Path Loss Estimation Using Multiple Spatial Data and System Parameters. 1-5 2022 VTC Fall https://doi.org/10.1109/VTC2022-Fall57202.2022.10012870 conf/vtc/2022f db/conf/vtc/vtc2022f.html#InoueIINH22

Steven Wandale Koichi Ichige Simulated Annealing Assisted Sparse Array Selection Utilizing Deep Learning. 156907-156914 2021 9 IEEE Access https://doi.org/10.1109/ACCESS.2021.3129856 db/journals/access/access9.html#WandaleI21

Steven Wandale Koichi Ichige Design of sparse arrays via deep learning for enhanced DOA estimation. 17 2021 2021 EURASIP J. Adv. Signal Process. 1 https://doi.org/10.1186/s13634-021-00727-5 db/journals/ejasp/ejasp2021.html#WandaleI21

Yuji Araki Kentaro Mita Koichi Ichige Single Image Haze Removal Using Iterative Ambient Light Estimation with Region Segmentation. 550-562 2021 104-A IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 2 http://search.ieice.org/bin/summary.php?id=e104-a_2_550 db/journals/ieiceta/ieiceta104.html#ArakiMI21

Shogo Nakamura Sho Iwazaki Koichi Ichige Optimization and Hole Interpolation of 2-D Sparse Arrays for Accurate Direction-of-Arrival Estimation. 401-409 2021 104-B IEICE Trans. Commun. 4 http://search.ieice.org/bin/summary.php?id=e104-b_4_401 db/journals/ieicetb/ieicetb104.html#NakamuraII21

Steven Wandale Koichi Ichige A Nested Array Geometry with Enhanced Degrees of Freedom and Hole- Free Difference Coarray. 1905-1909 2021 EUSIPCO https://doi.org/10.23919/EUSIPCO54536.2021.9616342 conf/eusipco/2021 db/conf/eusipco/eusipco2021.html#WandaleI21 Yuma Suzuki Koichi Ichige High Accuracy Video Foreground Segmentation Based on Feature Normalization. 15-17 2021 ISCIT https://doi.org/10.1109/ISCIT52804.2021.9590583 conf/iscit/2021 db/conf/iscit/iscit2021.html#SuzukiI21 Daiki Toda Ren Anzai Koichi Ichige Ryo Saito Daichi Ueki ECG Signal Reconstruction Using FMCW Radar and Convolutional Neural Network. 176-181 2021 ISCIT https://doi.org/10.1109/ISCIT52804.2021.9590627 conf/iscit/2021 db/conf/iscit/iscit2021.html#TodaAISU21 Kazuya Inoue Koichi Ichige Tatsuya Nagao Takahiro Hayashi On The Building Map for Radio Propagation Prediction Using Machine Learning. 842-847 2021 PIMRC https://doi.org/10.1109/PIMRC50174.2021.9569521 conf/pimrc/2021 db/conf/pimrc/pimrc2021.html#InoueINH21

Sho Iwazaki Shogo Nakamura Koichi Ichige DOA-Based Weighted Spatial Filter Design for Sum and Difference Composite Co-Array. 1147-1154 2020 103-B IEICE Trans. Commun. 10 https://doi.org/10.1587/transcom.2019EBP3213 http://search.ieice.org/bin/summary.php?id=e103-b_10_1147 db/journals/ieicetb/ieicetb103.html#IwazakiNI20

Shohei Hamada Koichi Ichige A Note on The Maximum Number of Sources in DOA Estimation by MODE. 1-4 2020 SAM https://doi.org/10.1109/SAM48682.2020.9104366 conf/ieeesam/2020 db/conf/ieeesam/sam2020.html#HamadaI20 Steven Wandale Koichi Ichige On the DOA Estimation Performance of Optimum Arrays Based on Deep Learning. 1-5 2020 SAM https://doi.org/10.1109/SAM48682.2020.9104365 conf/ieeesam/2020 db/conf/ieeesam/sam2020.html#WandaleI20

Koichi Ichige Nobuya Arakawa Ryo Saito Osamu Shibata Phase-Difference Compensation and Nonuniform Pulse Transmission for Accurate Real-Time Moving Object Tracking. 211-218 2019 102-A IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 1 https://doi.org/10.1587/transfun.E102.A.211 http://search.ieice.org/bin/summary.php?id=e102-a_1_211 db/journals/ieicet/ieicet102a.html#IchigeASS19

Sho Iwazaki Koichi Ichige Extended Beamforming by Sum and Difference Composite Co-Array for Real-Valued Signals. 918-925 2019 102-A IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 7 https://doi.org/10.1587/transfun.E102.A.918 http://search.ieice.org/bin/summary.php?id=e102-a_7_918 db/journals/ieicet/ieicet102a.html#IwazakiI19

Sho Iwazaki Koichi Ichige DOA-based Weighted Spatial Filter Design for Sum and Difference Composite Co-Array. 41-44 2019 ICECS https://doi.org/10.1109/ICECS46596.2019.8964640 conf/icecsys/2019 db/conf/icecsys/icecsys2019.html#IwazakiI19 Shogo Nakamura Sho Iwazaki Koichi Ichige Optimum 2D Sparse Array and its Interpolation via Nuclear Norm Minimization. 1-5 2019 ISCAS https://doi.org/10.1109/ISCAS.2019.8702741 conf/iscas/2019 db/conf/iscas/iscas2019.html#NakamuraII19 Steven Wandale Thomas Basikolo Koichi Ichige Super Nested Sparse Circular Array for High Resolution DOA Estimation. 1-5 2019 ISCAS https://doi.org/10.1109/ISCAS.2019.8702389 conf/iscas/2019 db/conf/iscas/iscas2019.html#WandaleBI19

Thomas Basikolo Koichi Ichige Hiroyuki Arai A note on CRLB formulation for underdetermined DOA estimation in circularly configured planar arrays. 2018 15 IEICE Electron. Express 5 https://doi.org/10.1587/elex.15.20180193 https://www.wikidata.org/entity/Q130141404 db/journals/ieiceee/ieiceee15.html#BasikoloIA18

Thomas Basikolo Koichi Ichige Hiroyuki Arai Nested Circular Array and Its Concentric Extension for Underdetermined Direction of Arrival Estimation. 1076-1084 2018 101-B IEICE Trans. Commun. 4 https://doi.org/10.1587/transcom.2017EBP3232 http://search.ieice.org/bin/summary.php?id=e101-b_4_1076 db/journals/ieicet/ieicet101b.html#BasikoloIA18

Sho Iwazaki Koichi Ichige Underdetermined Direction of Arrival Estimation by Sum and Difference Composite Co-Array. 669-672 2018 ICECS https://doi.org/10.1109/ICECS.2018.8617882 conf/icecsys/2018 db/conf/icecsys/icecsys2018.html#IwazakiI18 Jun Ogata Koichi Ichige Fast Intra Mode Decision Method Based on Outliers of DCT Coefficients and Neighboring Block Information for H.265/HEVC. 1-5 2018 ISCAS https://doi.org/10.1109/ISCAS.2018.8351119 conf/iscas/2018 db/conf/iscas/iscas2018.html#OgataI18 Yuji Araki Koichi Ichige Single Image Haze Removal Using Ambient Light Estimation and Region Segmentation. 70-75 2018 ISPACS https://doi.org/10.1109/ISPACS.2018.8923424 conf/ispacs/2018 db/conf/ispacs/ispacs2018.html#ArakiI18 Takeo Kawashima Koichi Ichige Automatic Piano Music Transcription using Low Rank NMF and Convolutional Neural Network. 475-480 2018 ISPACS https://doi.org/10.1109/ISPACS.2018.8923339 conf/ispacs/2018 db/conf/ispacs/ispacs2018.html#KawashimaI18 Sho Iwazaki Koichi Ichige Extended beamforming by sum and difference composite co-array for radio surveillance. 1-6 2017 WIFS https://doi.org/10.1109/WIFS.2017.8267658 conf/wifs/2017 db/conf/wifs/wifs2017.html#IwazakiI17

Koichi Ichige Yu Iwabuchi Array Correlation Matrix Element Properties and Their Application to Low-Cost DOA Estimation. 1859-1866 2016 99-B IEICE Trans. Commun. 8 https://doi.org/10.1587/transcom.2015EBP3465 http://search.ieice.org/bin/summary.php?id=e99-b_8_1859 db/journals/ieicet/ieicet99b.html#IchigeI16

Koichi Ichige Naoki Yotsueda Weighted shooting method for high-resolution DOA estimation based on sparse spectrum fitting. 1068-1072 2016 EUSIPCO https://doi.org/10.1109/EUSIPCO.2016.7760412 conf/eusipco/2016 db/conf/eusipco/eusipco2016.html#IchigeY16 Koichi Ichige Nobuya Arakawa Osamu Shibata Real-time moving object tracking using phase-difference compensation and nonuniform pulse transmission. 2647-2650 2016 ISCAS https://doi.org/10.1109/ISCAS.2016.7539137 conf/iscas/2016 db/conf/iscas/iscas2016.html#IchigeAS16 Yuki Iizuka Koichi Ichige Multiple snapshot spatial smoothing with improved effective array aperture for high-resolution direction-of-arrival estimation. 1-4 2015 ICICS https://doi.org/10.1109/ICICS.2015.7459867 conf/IEEEicics/2015 db/conf/IEEEicics/IEEEicics2015.html#IizukaI15 Jun Ogata Koichi Ichige Non-iterative coding tree depth estimation for H.265/HEVC using neighboring block information. 1-4 2015 ICICS https://doi.org/10.1109/ICICS.2015.7459963 conf/IEEEicics/2015 db/conf/IEEEicics/IEEEicics2015.html#OgataI15 Koichi Ichige Yu Iwabuchi An efficient Direction-Of-Arrival estimation method for Uniform Rectangular Array based on array covariance matrix element properties. 345-348 2015 CAMSAP https://doi.org/10.1109/CAMSAP.2015.7383807 conf/camsap/2015 db/conf/camsap/camsap2015.html#IchigeI15 Yu Iwabuchi Koichi Ichige Accurate and low-cost DOA estimation method using array covariance matrix elements. 531-534 2014 APCCAS https://doi.org/10.1109/APCCAS.2014.7032836 conf/apccas/2014 db/conf/apccas/apccas2014.html#IwabuchiI14 Keita Yamada Koichi Ichige DOA estimation for low-cost array antenna system based on GROUSE and EM algorithms. 535-538 2014 APCCAS https://doi.org/10.1109/APCCAS.2014.7032837 conf/apccas/2014 db/conf/apccas/apccas2014.html#YamadaI14 Yuki Doi Koichi Ichige Hiroyuki Arai Hiromi Matsuno Masayuki Nakano 3-D array configuration using multiple regular tetrahedra for high-resolution 2-D DOA estimation. 1955-1959 2014 EUSIPCO https://ieeexplore.ieee.org/document/6952711/ conf/eusipco/2014 db/conf/eusipco/eusipco2014.html#DoiIAMN14 Yuki Doi Koichi Ichige Hiroyuki Arai Hiromi Matsuno Masayuki Nakano Antenna switching based on the relation between the relative location of array elements for high resolution 2-D DOA estimation. 437-440 2014 ISCCSP https://doi.org/10.1109/ISCCSP.2014.6877907 conf/isccsp/2014 db/conf/isccsp/isccsp2014.html#DoiIAMN14 Yu Iwabuchi Hanyang Li Koichi Ichige Direction-of-arrival estimation of coherent sources for ULA based on the relation between array covariance matrix elements. 648-651 2014 ISCCSP https://doi.org/10.1109/ISCCSP.2014.6877958 conf/isccsp/2014 db/conf/isccsp/isccsp2014.html#IwabuchiLI14

Yuki Doi Hiroki Moriya Koichi Ichige Hiroyuki Arai Takahiro Hayashi Hiromi Matsuno Masayuki Nakano High Resolution 2-D DOA Estimation by Low-Cost Antenna Array Based on Synthesized Covariance Matrix via Antenna Switching. 1962-1971 2013 96-A IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 10 https://doi.org/10.1587/transfun.E96.A.1962 http://search.ieice.org/bin/summary.php?id=e96-a_10_1962 db/journals/ieicet/ieicet96a.html#DoiMIAHMN13

Yuta Shikagawai Koichi Ichige High-resolution and low-cost direction-of-arrival estimation by 2q-Root-MUSIC method. 24-29 2013 SiPS https://doi.org/10.1109/SiPS.2013.6674475 conf/sips/2013 db/conf/sips/sips2013.html#ShikagawaiI13 Hiroki Moriya Yuki Doi Koichi Ichige Hiroyuki Arai Takahiro Hayashi Hiromi Matsuno Masayuki Nakano Cuboid array: A novel 3-D array configuration for high resolution 2-D DOA estimation. 77-82 2013 SiPS https://doi.org/10.1109/SiPS.2013.6674484 conf/sips/2013 db/conf/sips/sips2013.html#MoriyaDIAHMN13 Yuki Doi Hiroki Moriya Koichi Ichige Hiroyuki Arai Takahiro Hayashi Hiromi Matsuno Masayuki Nakano Low-cost antenna array via antenna switching for high resolution 2-D DOA estimation. 83-88 2013 SiPS https://doi.org/10.1109/SiPS.2013.6674485 conf/sips/2013 db/conf/sips/sips2013.html#DoiMIAHMN13

Hiroki Moriya Koichi Ichige Hiroyuki Arai Takahiro Hayashi Hiromi Matsuno Masayuki Nakano Improving Elevation Estimation Accuracy in DOA Estimation: How Planar Arrays Can Be Modified into 3-D Configuration. 1667-1675 2012 95-A IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 10 https://doi.org/10.1587/transfun.E95.A.1667 http://search.ieice.org/bin/summary.php?id=e95-a_10_1667 db/journals/ieicet/ieicet95a.html#MoriyaIAHMN12

Koichi Ichige Hanyang Li Hiroyuki Arai SURE: SimUltaneous Root Extraction method for DOA estimation of coherent sources by ULA. 293-296 2012 SAM https://doi.org/10.1109/SAM.2012.6250492 conf/ieeesam/2012 db/conf/ieeesam/sam2012.html#IchigeLA12

Yosuke Takeuchi Koichi Ichige Koichi Miyamoto Yoshio Ebine Automated Microwave Filter Tuning Based on Successive Optimization of Phase and Amplitude Characteristics. 617-624 2011 94-A IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 2 https://doi.org/10.1587/transfun.E94.A.617 http://search.ieice.org/bin/summary.php?id=e94-a_2_617 db/journals/ieicet/ieicet94a.html#TakeuchiIME11

Minseok Kim Takayuki Moteki Koichi Ichige Hiroyuki Arai Efficient Heterodyne Digital Receiver with Direct RF-to-Digital Conversion for Software Defined Radio. 1056-1062 2009 92-A IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 4 https://doi.org/10.1587/transfun.E92.A.1056 http://search.ieice.org/bin/summary.php?id=e92-a_4_1056&category=A&year=2009&lang=E&abst= db/journals/ieicet/ieicet92a.html#KimMIA09

Koichi Ichige Kazuhiko Saito Hiroyuki Arai High Resolution DOA Estimation Using Unwrapped Phase Information of MUSIC-Based Noise Subspace. 1990-1999 2008 91-A IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 8 https://doi.org/10.1093/ietfec/e91-a.8.1990 db/journals/ieicet/ieicet91a.html#IchigeSA08

Koichi Ichige Yoshihisa Ishikawa Hiroyuki Arai High resolution 2-D DOA estimation using second-order partial-differential of MUSIC spectrum. 1152-1155 2008 ISCAS https://doi.org/10.1109/ISCAS.2008.4541627 conf/iscas/2008 db/conf/iscas/iscas2008.html#IchigeIA08

Koichi Ichige Yoshihisa Ishikawa Hiroyuki Arai High Resolution DOA Estimation Using Second-Order Differential of MUSIC Spectrum. 546-552 2007 90-A IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 3 https://doi.org/10.1093/ietfec/e90-a.3.546 db/journals/ieicet/ieicet90a.html#IchigeIA07

Kazuhiro Nakadai Ryota Sumiya Mikio Nakano Koichi Ichige Yasuo Hirose Hiroshi Tsujino The Design of Phoneme Grouping for Coarse Phoneme Recognition. 905-914 2007 conf/ieaaie/2007 IEA/AIE https://doi.org/10.1007/978-3-540-73325-6_90 db/conf/ieaaie/ieaaie2007.html#NakadaiSNIHT07

Yoshihisa Ishikawa Koichi Ichige Hiroyuki Arai Accurate Source Number Detection Using Pre-Estimated Signal Subspace. 3257-3265 2006 89-B IEICE Trans. Commun. 12 https://doi.org/10.1093/ietcom/e89-b.12.3257 db/journals/ieicet/ieicet89b.html#IshikawaIA06

Koichi Ichige Hideaki Munemasa Hiroyuki Arai An Efficient Signed-Power-of-Two Term Allocation for Filter Coefficients in Digital Communication System. 3266-3268 2006 89-B IEICE Trans. Commun. 12 https://doi.org/10.1093/ietcom/e89-b.12.3266 db/journals/ieicet/ieicet89b.html#IchigeMA06

Nozomi Zama Koichi Ichige Filter Effect on Low-IF Multichannel Receiver: How a Simple Filter Improves Digital Communication Quality. 3471-3474 2006 89-B IEICE Trans. Commun. 12 https://doi.org/10.1093/ietcom/e89-b.12.3471 db/journals/ieicet/ieicet89b.html#ZamaI06

Koichi Ichige Noriaki Takabe Hiroyuki Arai An Explicit High-Resolution DOA Estimation Formula for Two Wave Sources. 893-896 2006 ICASSP (4) https://doi.org/10.1109/ICASSP.2006.1661113 conf/icassp/2006 db/conf/icassp/icassp2006.html#IchigeTA06 Koichi Ichige Mitsuharu Imai Hiroyuki Arai Masayuki Nakano Masafumi Hirono Direction of Arrival Detection System for Radio Surveillance: Frequency Spectrum Analysis of CDMA and Jamming Waves. 2957-2961 2006 conf/vtc/2006s VTC Spring https://doi.org/10.1109/VETECS.2006.1683410 db/conf/vtc/vtc2006s.html#IchigeIANH06

Minseok Kim Aiko Kiyono Koichi Ichige Hiroyuki Arai Experimental Study of Jitter Effect on Digital Downconversion Receiver with Undersampling Scheme. 1430-1436 2005 88-D IEICE Trans. Inf. Syst. 7 https://doi.org/10.1093/ietisy/e88-d.7.1430 db/journals/ieicet/ieicet88d.html#KimKIA05

Koichi Ichige Thierry Blu Michael Unser Interpolation of signals by generalized piecewise-linear multiple generators. 261-264 2003 ICASSP (6) https://doi.org/10.1109/ICASSP.2003.1201668 conf/icassp/2003 db/conf/icassp/icassp2003.html#IchigeBU03 Eriko Matsuzaki Koichi Ichige Hiroyuki Arai An automatic recognition algorithm of analogue modulated signals for disturbance rejection. 165-168 2003 ISSPA (1) https://doi.org/10.1109/ISSPA.2003.1224666 conf/isspa/2003-1 db/conf/isspa/isspa2003-1.html#MatsuzakiIA03 Naoya Matsumoto Koichi Ichige Hiroyuki Arai Fixed-point digital processing of recursive least-square algorithm toward FPGA implementation of MMSE adaptive array antenna. 615-617 2003 ISSPA (2) https://doi.org/10.1109/ISSPA.2003.1224954 conf/isspa/2003-2 db/conf/isspa/isspa2003-2.html#MatsumotoIA03

Takeshi Asahi Koichi Ichige Rokuya Ishii A Computationally Efficient Algorithm for Exponential B-Splines Based on Difference/IIR Filter Approach. 1265-1273 2002 85-A IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 6 http://search.ieice.org/bin/summary.php?id=e85-a_6_1265 db/journals/ieiceta/ieiceta85.html#AsahiII02

Minseok Kim Koichi Ichige Hiroyuki Arai Design of Jacobi EVD processor based on CORDIC for DOA estimation with MUSIC algorithm. 120-124 2002 PIMRC https://doi.org/10.1109/PIMRC.2002.1046673 conf/pimrc/2002 db/conf/pimrc/pimrc2002.html#KimIA02 Atsushi Suzuki Shintaro Muramatsu Koichi Ichige Hiroyuki Arai A hardware implementation of LS-CMA adaptive array for high-speed mobile communication. 458-462 2002 PIMRC https://doi.org/10.1109/PIMRC.2002.1046743 conf/pimrc/2002 db/conf/pimrc/pimrc2002.html#SuzukiMIA02

Koichi Ichige Masaru Kamada A simple discrete version of B-splines. 335-340 1998 29 Int. J. Syst. Sci. 3 https://doi.org/10.1080/00207729808929526 db/journals/ijsysc/ijsysc29.html#IchigeK98

Koichi Ichige Naohisa Otsuka Rokuya Ishii Properties of the frequency transformation matrices for IIR digital filters. 227-233 1998 71 Signal Process. 3 https://doi.org/10.1016/S0165-1684(98)00147-9 db/journals/sigpro/sigpro71.html#IchigeOI98

Koichi Ichige Naohisa Otsuka Rokuya Ishii An automatic design procedure of IIR digital filters from an analog low-pass filter. 223-231 1997 57 Signal Process. 3 https://doi.org/10.1016/S0165-1684(97)00005-4 db/journals/sigpro/sigpro57.html#IchigeOI97

Koichi Ichige Masaru Kamada An approximation for discrete B-splines in time domain. 82-84 1997 4 IEEE Signal Process. Lett. 3 https://doi.org/10.1109/97.558645 db/journals/spl/spl4.html#IchigeK97

Masaru Kamada Takafumi Endoh Koichi Ichige Kazuo Toraichi Quadratic spline interpolator. 977-983 1996 27 Int. J. Syst. Sci. 10 https://doi.org/10.1080/00207729608929301 db/journals/ijsysc/ijsysc27.html#KamadaEIT96

Koichi Ichige Masaru Kamada Discrete B-spline functions. 1-4 1996 EUSIPCO https://ieeexplore.ieee.org/document/7083229/ conf/eusipco/1996 db/conf/eusipco/eusipco1996.html#IchigeK96 Ren Anzai Hiroyuki Arai Nobuya Arakawa Yuji Araki Takeshi Asahi Thomas Basikolo Thierry Blu Yuki Doi Yoshio Ebine Ahmet M. Elbir Takafumi Endoh Rento Hagiwara Shohei Hamada Takahiro Hayashi Masafumi Hirono Yasuo Hirose Yuichi Hori Yuki Iizuka Mitsuharu Imai Keita Imaizumi Kazuya Inoue Rokuya Ishii Yoshihisa Ishikawa Yu Iwabuchi Sho Iwazaki Masaru Kamada Katsuhisa Kashiwagi Takeo Kawashima Minseok Kim Kazuya Kimura Kaito Kira Aiko Kiyono Hanyang Li Naoya Matsumoto Hiromi Matsuno Eriko Matsuzaki Kumar Vijay Mishra Kentaro Mita Koichi Miyamoto Hiroki Moriya Sota Moriyama Takayuki Moteki Hideaki Munemasa Takahiro Murakami Shintaro Muramatsu Tatsuya Nagao Kazuhiro Nakadai Shogo Nakamura Masayuki Nakano Mikio Nakano Jun Ogata Naohisa Otsuka Kazuhiko Saito Ryo Saito Kotone Sato Osamu Shibata Yuta Shikagawai Ryo Sugiura Ryota Sumiya Atsushi Suzuki Yuma Suzuki Masayuki Tachi Noriaki Takabe Yosuke Takeuchi Daiki Toda Kazuo Toraichi Hiroshi Tsujino Daichi Ueki Tomohiro Ueyama Michael Unser Steven Wandale Keita Yamada Naoki Yotsueda Kazuki Yuasa Nozomi Zama