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KYOCHI Seisuke
Faculty of Computer and Information Sciences　Department of Digital Media
Professor

Researcher information

■ External links
■ Degree
  • Bachelor of Science, Rikkyo University, Mar. 2005
  • Master of Engineering, Keio University, Mar. 2007
  • Ph.D. in Engineering, Keio University, Mar. 2010
■ Research Keyword
  • Signal processing
  • Image processing
  • Mathematical optimization
■ Field Of Study
  • Informatics, Intelligent informatics
  • Manufacturing technology (mechanical, electrical/electronic, chemical engineering), Communication and network engineering, 通信・ネットワーク工学
  • Informatics, Perceptual information processing, 画像処理
  • Informatics, Mathematical informatics, 信号処理，最適化

Career

■ Career
  • Apr. 2026 - Present
    Hosei University, Faculty of Computer and Information Sciences Department of Digital Media, Professor
  • Apr. 2021 - Mar. 2026
    Kogakuin University, Faculty of Informatics Department of Computer Science, Associate Professor
  • Apr. 2019 - Mar. 2021
    北九州市立大学, 国際環境工学部情報システム工学科, 准教授
  • Apr. 2015 - Mar. 2019
    北九州市立大学, 国際環境工学部情報メディア工学科, 准教授
  • Apr. 2012 - Mar. 2015
    The University of Kitakyushu, Faculty of Environmental Engineering Department of Information and Media Sciences, Lecturer
  • Apr. 2010 - Mar. 2012
    日本電信電話株式会社, サイバースペース研究所, 研究員
■ Educational Background
  • Apr. 2007 - Mar. 2010, Keio University, Graduate School of Science and Technology, 総合デザイン工学専攻
  • Apr. 2005 - Mar. 2007, Keio University, Graduate School of Science and Technology, 総合デザイン工学専攻
  • Apr. 2001 - Mar. 2005, Rikkyo University, College of Science, Department of Mathematics
■ Member History
  • Sep. 2025 - Present
    Associate Editor of IEEE Signal Processing Letters, IEEE Signal Processing Society
  • Jun. 2021 - Present
    画像工学研究会 専門委員, 電子情報通信学会
  • Jan. 2020 - Present
    Image, Video, and Multimedia (IVM) Committee Member, Asia-Pacific Signal and Information Processing Association (APSIPA)
  • Jun. 2025 - May 2027
    Fundamental Review 誌，編集委員, 電子情報通信学会
  • Jun. 2024 - May 2026
    信号処理研究専門委員会 専門委員, 電子情報通信学会
  • Jun. 2021 - May 2024
    信号処理研究専門委員会 幹事, 電子情報通信学会

Research activity information

■ Award
  • May 2022
    電子情報通信学会 画像工学研究専門委員会, IE特別賞
    ハイパースラブ射影を用いた二次曲面クラスタリングと色むら除去への応用
    大坪立弥;京地清介
  • 2018
    電子情報通信学会，画像工学研究会, IE賞
    コサイン・サイン変調フィルタバンクを用いた多重解像度指向性フレームの設計, Japan, Japan society
    小崎祥吾,野村優介,京地清介,鈴木大三
  • 2016
    電子情報通信学会，画像工学研究会, IMPS優秀論文賞
    最適化によるモーメント保存型定数時間ガウシアンフィルタの設計, Japan, Japan society
    杉本 憲治郎,京地 清介,鎌田 清一郎
  • 2016
    電子情報通信学会，信号処理研究会, 信号処理研究会賞
    強い色かぶりをもつ水中画像の鮮鋭化に関する検討, Japan society
    馬場達也,京地清介,奥田正浩
  • 2015
    IEEE Global Conference on Consumer Electronics (GCCE 2015), Outstanding Poster Award
    Adaptive Directional Lifting Wavelet-Based Lossless Image Coding with Directional Data Hiding, Japan, International society
    Makoto Shin and Seisuke Kyochi
■ Paper
■ MISC
■ Books and other publications
  • 音響学入門ペディア　　　　　　　　　　　　　　　
    京地清介,他49名, Joint work
    コロナ社, 15 Mar. 2017
    9784339008951
■ Lectures, oral presentations, etc.
  • Epigraphical reformulation for non-proximal mixed norms　　　　　　　　　　　　　　　
    Seisuke Kyochi; Shunsuke Ono; and Ivan Selesnick
    International Conference on Acoustics, Speech and Signal Processing (ICASSP), 06 May 2020, IEEE
  • Multiscale structure tensor total variation for image recovery　　　　　　　　　　　　　　　
    Makoto Watanabe; Ryo Matsuoka; Seisuke Kyochi; Shunsuke Ono; and Masahiro Okuda
    International Conference on Acoustics, Speech and Signal Processing (ICASSP), 14 May 2019, IEEE
  • Sound event detection using graph Laplacian regularization based on event co-occurrence　　　　　　　　　　　　　　　
    Keisuke Imoto and Seisuke Kyochi
    International Conference on Acoustics, Speech and Signal Processing (ICASSP), 14 May 2019, IEEE
  • Color affine subspace pursuit for color artifact removal　　　　　　　　　　　　　　　
    Kazuki Yamanaka; Seisuke Kyochi; Shunsuke Ono; and Keiichiro Shirai
    International Conference on Acoustics, Speech and Signal Processing (ICASSP), 19 Apr. 2018, IEEE
  • Universal approach for DCT-based constant-time Gaussian filter with moment preservation　　　　　　　　　　　　　　　
    Kenjiro Sugimoto; Seisuke Kyochi; and Seiichiro Kamata
    International Conference on Acoustics, Speech and Signal Processing (ICASSP), 18 Apr. 2018, IEEE
  • Audio source separation based on nonnegative matrix factorization with graph harmonic structure　　　　　　　　　　　　　　　
    Tomohiro Ichita; Seisuke Kyochi; and Keisuke Imoto
    Annual Summit and Conference (ASC), 15 Nov. 2018, Asia-Pacific Signal and Information Processing Association (APSIPA), [Invited]
  • Multiscale directional transforms based on cosine-sine modulated filter banks for sparse directional image representation　　　　　　　　　　　　　　　
    Yusuke Nomura; Ryutaro Ogawa; Seisuke Kyochi; and Taizo Suzuki
    Annual Summit and Conference (ASC), 15 Dec. 2017, Asia-Pacific Signal and Information Processing Association (APSIPA), [Invited]
  • Image enhancement method for underwater images based on discrete cosine eigenbasis transformation　　　　　　　　　　　　　　　
    Tatsuya Baba; Keishu Nakamura; Seisuke Kyochi; and Masahiro Okuda
    International Conference on Image Processing (ICIP), 20 Sep. 2017, IEEE
  • Directional discrete cosine transforms arising from discrete cosine and sine transforms for directional block-wise image representation　　　　　　　　　　　　　　　
    Tomohiro Ichita; Seisuke Kyochi; Taizo Suzuki; and Yuichi Tanaka
    International Conference on Acoustics, Speech and Signal Processing (ICASSP), 08 Mar. 2017, IEEE
  • Guided-colorization-based color image coding　　　　　　　　　　　　　　　
    Yuya Ema and Seisuke Kyochi
    Picture Coding Symposium (PCS), 05 Dec. 2016
  • Design of oversampled cosine-sine modulated filter banks for directional image representation　　　　　　　　　　　　　　　
    Ryutaro Ogawa; Seisuke Kyochi; and Taizo Suzuki
    Annual Summit and Conference (ASC), 19 Dec. 2015, Asia-Pacific Signal and Information Processing Association (APSIPA), [Invited]
  • Adaptive directional lifting wavelet-based lossless image coding with directional data hiding　　　　　　　　　　　　　　　
    Makoto Shin and Seisuke Kyochi
    Global Conference on Consumer Electronics (GCCE), 28 Oct. 2015, IEEE
  • Image boundary extension with mean values for cosine-sine modulated filter banks　　　　　　　　　　　　　　　
    Ryoma Ishibashi; Taizo Suzuki; Hiroyuki Kudo; and Seisuke Kyochi
    International Symposium on Communications and Information Technologies (ISCIT), 07 Oct. 2015
  • A regularization approach for bayer reconstruction in lossy image coding by inverse demosaicing　　　　　　　　　　　　　　　
    Masao Yamagishi; Seisuke Kyochi; Keiichiro Shirai; and Masahiro Okuda
    International Conference on Image Processing (ICIP), 29 Sep. 2015, IEEE
  • Gradient-­domain image decomposition for image recovery　　　　　　　　　　　　　　　
    Makoto Watanabe; Seisuke Kyochi; and Shunsuke Ono
    International Conference on Image Processing (ICIP), 28 Sep. 2015, IEEE
  • Fractional cycle spinning via modulated lapped transform for overcomplete image representation　　　　　　　　　　　　　　　
    Seisuke Kyochi and Masaaki Ikehara
    International Conference on Image Processing (ICIP), 28 Oct. 2014, IEEE
  • Lossless/near-lossless color image coding by inverse demosaicing　　　　　　　　　　　　　　　
    Ryo Kuroiwa; Ryo Matsuoka; Seisuke Kyochi; Keiichiro Shirai; and Masahiro Okuda
    International Conference on Acoustics, Speech and Signal Processing (ICASSP), 07 May 2014, IEEE
  • A two-dimensional non-separable implementation of dyadic-valued cosine-sine modulated filter banks for low computational complexity　　　　　　　　　　　　　　　
    Seisuke Kyochi; Taizo Suzuki; and Yuichi Tanaka
    Annual Summit and Conference (ASC), 01 Nov. 2013, Asia-Pacific Signal and Information Processing Association (APSIPA), [Invited]
  • Multiplierless lifting based FFT via fast Hartley transform　　　　　　　　　　　　　　　
    Taizo Suzuki; Seisuke Kyochi; Yuichi Tanaka; Masaaki Ikehara; and Hirotomo Aso
    International Conference on Acoustics, Speech and Signal Processing (ICASSP), 28 May 2013, IEEE
  • A directional and shift-invariant transform based on M-channel rational-valued cosine-sine modulated filter banks　　　　　　　　　　　　　　　
    Seisuke Kyochi; Taizo Suzuki; and Yuichi Tanaka
    Annual Summit and Conference (ASC), 05 Dec. 2012, Asia-Pacific Signal and Information Processing Association (APSIPA)
  • Multiresolution directional image decomposition based on cosine-sine modulated filter banks　　　　　　　　　　　　　　　
    Seisuke Kyochi and Yuichi Tanaka
    International Technical Conference on Circuits/Systems, Computers and Communications (ITCCSCC), 16 Jul. 2012, IEICE/ECTI/IEEK
  • On factorizations of conjugate symmetric Hadamard transform and its relationship with DCT　　　　　　　　　　　　　　　
    Seisuke Kyochi; Yuichi Tanaka; and Masaaki Ikehara
    International Conference on Acoustics, Speech and Signal Processing (ICASSP), 27 Mar. 2012, IEEE
  • Two dimensional non-separable adaptive directional lifting structure of discrete wavelet transform　　　　　　　　　　　　　　　
    Taichi Yoshida; Taizo Suzuki; Seisuke Kyochi; and Masaaki Ikehara
    International Conference on Acoustics, Speech and Signal Processing (ICASSP), 24 May 2011, IEEE
  • A direction-adaptive image coding using two-dimensional direct lifting wavelet transform　　　　　　　　　　　　　　　
    Seisuke Kyochi; Junya Aoyama; and Masaaki Ikehara
    International Conference on Image Processing (ICIP), 27 Sep. 2010, IEEE
  • A simplified lattice structure of two-dimensional generalized lapped orthogonal transform (2-D GenLOT) for image coding　　　　　　　　　　　　　　　
    Taichi Yoshida; Seisuke Kyochi; and Masaaki Ikehara
    International Conference on Image Processing (ICIP), 27 Sep. 2010, IEEE
  • A directional and shift-invariant transform based on cosine-sine modulated filter banks and its application　　　　　　　　　　　　　　　
    Seisuke Kyochi and Masaaki Ikehara
    International Workshop on Nonlinear Circuits, Communicaions and Signal Processing (NCSP), 04 Mar. 2010, Research Institute of Signal Processing
  • Image interpolation using cosine-sine modulated filter bank　　　　　　　　　　　　　　　
    Shunsuke Iwamura; Seisuke Kyochi; Naoto Kaneko; and Masaaki Ikehara
    Latin American Symposium on Circuits and Systems (LASCAS), 24 Feb. 2010
  • Dual-tree complex wavelet transform arising from cosine-sine modulated filter banks　　　　　　　　　　　　　　　
    Seisuke Kyochi; Toshiyuki Uto; and Masaaki Ikehara
    International Symposium on Circuits and Systems (ISCAS), 25 May 2009, IEEE
  • A design of dual-tree complex wavelet transform based on least squares method　　　　　　　　　　　　　　　
    Takafumi Shimizu; Seisuke Kyochi; and Masaaki Ikehara
    DSP Workshop, 05 Jan. 2009
  • A novel design of critically sampled contourlet transform and its application to image coding　　　　　　　　　　　　　　　
    Shizuka Higaki; Seisuke Kyochi; Yuichi Tanaka; and Masaaki Ikehara
    International Conference on Image Processing (ICIP), 13 Oct. 2008, IEEE
  • Novel characteristics of even-stacked cosine-modulated filter banks: non-redundant directional transform and shift-invariance　　　　　　　　　　　　　　　
    Seisuke Kyochi and Masaaki Ikehara
    European Signal Processing Conference (EUSIPCO), 28 Aug. 2008, EURASIP
  • A novel image coding scheme by using two-channel complex-valued filter banks　　　　　　　　　　　　　　　
    Seisuke Kyochi; Yuichi Tanaka; and Masaaki Ikehara
    European Signal Processing Conference (EUSIPCO), 05 Sep. 2007, EURASIP
  • Theory and design of two-channel complex linear-phase pseudo-orthogonal filterbanks　　　　　　　　　　　　　　　
    Seisuke Kyochi; Yuichi Tanaka; and Masaaki Ikehara
    International Conference on Acoustics, Speech and Signal Processing (ICASSP), 16 May 2006, IEEE
■ Research Themes
■ Industrial Property Rights
  • 特許第5756368号, 特開2013-34151, 特願2011-170044, 映像静止判定方法、映像静止判定装置、及びプログラム　　　　　　　　　　　　　　　
    京地清介; 中村健; 北原正樹; 小野尚紀; 清水淳
  • 特許第5748225号, 特開2013-157662, 特願2012-14357, 画像符号化方法，動画像符号化装置および動画像符号化プログラム　　　　　　　　　　　　　　　
    京地清介; 中村健; 北原正樹; 小野尚紀; 清水淳
  • 特許第5727398号, 特開2013-153387, 特願2012-14062, 画像符号化方法，動画像符号化装置および動画像符号化プログラム　　　　　　　　　　　　　　　
    北原正樹; 清水淳; 中村健; 京地清介; 小野尚紀
  • 特許第5662896号, 特開2013-34152, 特願2011-170045, 映像静止判定方法、映像静止判定装置、及びプログラム　　　　　　　　　　　　　　　
    京地清介; 中村健; 北原正樹; 小野尚紀; 清水淳
  • 特許第5613319号, WO2012/121234, PCT/JP2012/055630, 符号化装置、映像符号化方法および映像符号化プログラム　　　　　　　　　　　　　　　
    小野尚紀; 清水淳; 北原正樹; 京地清介
  • 特許第5410638号, WO2012/121211, PCT/JP2012/055564, 量子化制御装置及び方法、及び量子化制御プログラム　　　　　　　　　　　　　　　
    北原正樹; 清水淳; 小野尚紀; 京地清介