Tanaka, Toshiyuki

写真a

Affiliation

Faculty of Science and Technology, Department of Applied Physics and Physico-Informatics 基礎理工学専攻 (Yagami)

Position

Professor

Related Websites

External Links

Profile Summary 【 Display / hide

  • '''''''Our research interest are analysis of medical images, personal authentication, nondestructive inspection, GPS and its application, acoustic signal processing. Computer aided diagnosis of tumor is studied as medical image processing, and face flabbiness measurement is also studied using 3D reconstruction method. Biometric authentication is studied as personal Identification. And reconstruction algorithm of X ray CT is studied as nondestructive inspection.'''''''

Career 【 Display / hide

  • 1989.04
    -
    1993.03

    慶應義塾大学, 理工学部計測工学科, 助手

  • 1993.04
    -
    1996.03

    慶應義塾大学, 理工学部計測工学科, 専任講師

  • 1996.04
    -
    2003.03

    慶應義塾大学, 理工学部物理情報工学科兼計測工学科, 専任講師

  • 1997.04
    -
    2000.03

    慶應義塾大学, 学生総合センター学生部門, 委員

  • 1997.10
    -
    2000.03

    慶應義塾大学, 理工学部教育研究交流委員会, 委員

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Academic Background 【 Display / hide

  • 1982.03

    Keio University, Faculty of Engineering, 計測工学科

    University, Graduated

  • 1984.03

    Keio University, Graduate School, Division of Science and Engineeri, 計測工学専攻

    Graduate School, Completed, Master's course

  • 1989.03

    Keio University, Graduate School, Division of Science and Engineeri, 計測工学専攻

    Graduate School, Completed, Doctoral course

Academic Degrees 【 Display / hide

  • 工学 , Keio University, 1989.03

 

Research Areas 【 Display / hide

  • Medical systems (Medical Systems)

  • Measurement engineering (Measurement Engineering)

Research Keywords 【 Display / hide

  • global positioning system

  • biometric authentication

  • pattern recognition

  • signal processing

  • image processing

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Books 【 Display / hide

  • Fundamentals of Image Information Processing

    田中敏幸, コロナ社, 2019.06,  Page: 192

  • 皮膚測定の評価法バイブル:顔の三次元再構成に基づくたるみ計測

    田中 敏幸, 技術情報協会, 2013.05

    Scope: 第1章,第3節,pp.16-22

  • Advances in Telemedicine Applications in Various Medical Diciplines and Geographical Regions

    TANAKA TOSHIYUKI, INTECH, 2011.03

    Scope: 157-178

  • C言語プログラミング入門 C99対応

    TANAKA TOSHIYUKI, コロナ社, 2009.09

  • Fundamentals of Numerical Method

    TANAKA TOSHIYUKI, 2006.04

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Papers 【 Display / hide

  • Quantitative Assessment of Age-dependent Changes in Porphyrins from Fluorescence Images of Ultraviolet Photography by Image Processing

    Wu Y., Akimoto M., Igarashi H., Shibagaki Y., Tanaka T.

    Photodiagnosis and Photodynamic Therapy (Photodiagnosis and Photodynamic Therapy)  35 2021.09

    ISSN  15721000

     View Summary

    Background: Skin is the first line of defense against harmful external environmental factors. Skin flora living on the skin surface impact skin health and skin disease. Bacteria, form part of the unique and complex skin micro-ecological system. For example, Propionibacterium acnes (P. acnes) is a member of the anaerobic organisms and is involved in the induction of skin acne. It produces porphyrins that absorb ultraviolet light and emit red fluorescence in response. As a result, fluorescence surveillance of the skin can be important in both the diagnosis of skin acne and the evaluation of therapeutic effects. Many different measurement methods for single skin biophysical properties have been reported. This study focused on the age-dependent changes in porphyrins for normal skin, and developed a novel algorithm to evaluate porphyrins using the fluorescence images by image processing quantitatively. Materials and methods: An extraction algorithm was proposed for the segmentation of porphyrin fluorescence images in OpenCV. The algorithm consisted primarily of preprocessing, conversion from RGB color space to HSV color space, and classification of fluorescence. There are 3595 healthy Japanese aged 16–85 years enrolled in the study and fluorescence images were acquired from their cheek sites under 375 nm UV-LED excitation. Age-related fluorescence variation was conducted applying the algorithm implemented. Results: A new extraction algorithm has been proposed with fluorescence image input and three indexes output, including the number of fluorescence, area of fluorescence, and mean intensity of fluorescence. Proposed algorithm was verified by three parameters, the accuracy, sensitivity, and precision, which refer to the ability of algorithm to detect the number of fluorescence correctly and repeatedly. The verification results were 71%, 72%, and 88% respectively, taking a validly fundamental step for skin health record and analysis. Furthermore, large-scale fluorescence image segmentation results revealed that similar trends were coming out for all three indexes in cheek as people get older. All the fluorescence number, area and mean intensity arrived at the highest at 30 years old and fell off since then. Conclusion: The number, area, and fluorescence intensity of porphyrins can be extracted well from fluorescence images with the proposed algorithm in the study, which has the potential to aid in thediagnosis of skin acne and predict skin conditions as an assisted tool. It is implicated that fluorescence status is influenced by age, which rises to the peak around 30 years old for normal cheek's skin.

  • 3D Assessment of Facial Symmetry for Quantitative Diagnosis for Facial Paralysis

    Ken Sudo, Toshiyuki Tanaka

    Journal of Ergonomic Technology 21 ( 1 ) 1 - 11 2021.03

    Research paper (scientific journal), Joint Work, Accepted,  ISSN  2432-1575

  • Objective and quantitative measurement of skin micro-relief by image analysis and application in age-dependent changes

    Wu Y., Tanaka T.

    Skin Research and Technology (Skin Research and Technology)   2021

    ISSN  0909752X

     View Summary

    Background: Skin micro-relief has been researched by a variety of devices and methods, which usually are expensive or complicated. On the other hand, skin micro-relief relates to quite a few parameters, and it is hard to evaluate all of them at the same time. In the study, all parameters related to skin micro-relief are extracted and evaluated by image analysis. Materials and Methods: Skin micro-relief evaluation was divided into four aspects: (a) Tamura features method was used to evaluate skin surface. (b) Morphological transform was applied to extract skin pores. (c) Watershed transform was applied to extract skin furrows. (d) labeling operation was used to evaluate the number, area and average area of skin closed polygons. Then, cheek images from 163 healthy Japanese females (0-70 years old) are analyzed to explore the age-dependent changes. Results: Most parameters increased as age went on with significant differences, such as skin surface coarseness, contrast, skin pore number, area, average area, skin furrow width, skin closed polygon area and skin closed polygon average area. Skin coarseness has a strong correlation with pore area. Conclusion: The method proposed in the study provided a comprehensive and effective assessment of skin micro-relief.

  • Utilization of Individual Typology Angle (ITA) and Hue Angle in the Measurement of Skin Color on Images

    Yue Wu, Toshiyuki Tanaka, Makio Akimoto

    Bioimages 28   1 - 8 2020.12

    Research paper (scientific journal), Joint Work, Accepted,  ISSN  0919-2719

  • A study on automatic extraction of facial feature points in skin image analysis system

    Yuto Mori, Toshiyuki Tanaka, Natsuki Takegama

    Proceedings of the SICE Annual Conference 2020    691 - 694 2020.09

    Research paper (international conference proceedings), Joint Work, Accepted

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Papers, etc., Registered in KOARA 【 Display / hide

Reviews, Commentaries, etc. 【 Display / hide

  • 顔画像におけるシワ領域抽出による年齢評価法

    田中敏幸、山本隆裕

    画像ラボ (日本工業出版)  31 ( 11 ) 30 - 35 2020.11

    Introduction and explanation (commerce magazine), Joint Work

  • 美容分野における顔画像処理の応用-顔の特徴点位置の自動検出-

    田中敏幸, 森勇人, 嶽窯那月

    画像ラボ (日本工業出版)  31 ( 10 ) 37 - 41 2020.10

    Introduction and explanation (commerce magazine), Joint Work

  • X線CTの撮影原理

    田中敏幸

    計測と制御 58 ( 7 ) 509 - 513 2019.07

    Introduction and explanation (scientific journal), Single Work

  • X線CTの原理・現状とさらなる画質の高品質化

    田中 敏幸

    計測と制御 (計測自動制御学会)  56 ( 11 ) 874 - 879 2017.11

    Introduction and explanation (scientific journal), Single Work

  • 医療におけるパターン計測

    田中 敏幸,富永俊弼

    計測と制御 (計測自動制御学会)  53 ( 7 ) 586 - 592 2014.07

    Introduction and explanation (scientific journal), Joint Work

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Presentations 【 Display / hide

  • 畳み込みニューラルネットワークと完全畳み込みネットワークを用いた大腸生検診断支援システムの開発

    田中敏幸、小林寛知

    国際ICT利用研究学会 第9回研究会, 2021.03, Oral Presentation(general)

  • 画像処理による皮膚移植評価システム

    江嵜広大、田中敏幸

    動的画像処理実利用ワークショップ(DIA2021), 2021.03, Oral Presentation(general)

  • 創動運動による脳機能の活性化

    田中敏幸

    第24回バイオフィリアリハビリテーション学会, 2021.02, Oral Presentation(general)

  • AIとIoTによる超高齢化社会のための在宅創動運動機器の開発-個人の身体能力評価とフィードバックを可能にする

    島貫泰斗、滝沢茂男、田中敏幸

    第24回バイオフィリアリハビリテーション学会, 2021.02, Oral Presentation(general)

  • 画像解析とAIによる肌状態の診断法

    田中敏幸

    化粧品開発展2021, 2021.01, Public discourse, seminar, tutorial, course, lecture and others

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Research Projects of Competitive Funds, etc. 【 Display / hide

  • 斜めCT装置の開発に係る基本アルゴリズムの開発とそのプログラミングと実証テスト

    2006.04
    -
    2006.12

    コムスキャンテクノ(株), Joint research

  • 斜めCT装置の開発に係る基本アルゴリズムの開発とそのプログラミングと実証テスト

    2006.01
    -
    2006.03

    コムスキャンテクノ(株), Joint research

  • カラーI.I.を利用した小動物腫瘍の悪性度判定の研究

    2005.04
    -
    2006.03

    アールテック(株), Joint research

  • 腕時計型PCによる腕静脈認証アルゴリズムの作成

    2005.04
    -
    2006.03

    ユニバーサルロボット(株), Joint research

  • 斜めCT装置の開発に係る基本アルゴリズムの開発

    2004.01
    -
    2004.03

    コムスキャンテクノ(株), Joint research

Intellectual Property Rights, etc. 【 Display / hide

  • 楽譜生成装置

    Application No.: 2007-101043  2007.04 

    Patent, Joint, National application

  • 自動採譜装置および方法

    Application No.: 2006-280650  2006.10 

    Patent, Joint, National application

Awards 【 Display / hide

  • 最優秀研究指導賞

    田中敏幸, 2014.12, パーソナルコンピュータ利用技術学会, 画像処理による子宮頸癌の診断支援システム、サイノグラムに基づいたX線CT画像メタルアーチファクトの低減、年齢推定を用いた高齢者顔画像における男女判別率の向上

    Type of Award: Other Awards.  Country: 日本

  • 研究奨励賞

    川越 ゑまい、田中敏幸, 2014.12, パーソナルコンピュータ利用技術学会, 乳がんたんぱく質発現解析の為の細胞核抽出

    Type of Award: Awards of National Conference, Council and Symposium.  Country: 日本

  • 優秀研究指導賞

    田中敏幸, 2014.12, パーソナルコンピュータ利用技術学会, 乳がんたんぱく質発現解析の為の細胞核抽出、逐次近似法を用いた少投影数X線CT画像の高画質化、胃癌の自動診断システム

    Type of Award: Awards of National Conference, Council and Symposium.  Country: 日本

  • ベストレビューワーアワード

    田中敏幸, 2014.09, 生体医工学シンポジウム

    Type of Award: Awards of National Conference, Council and Symposium.  Country: 日本

  • CPDポイント賞

    TANAKA TOSHIYUKI, 2013.09, 計測自動制御学会

    Type of Award: Awards of National Conference, Council and Symposium

     View Description

    2012年度継続教育のポイント制度において学術研究活動や委員会活動を通じて自己研さんに励んだ。

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Courses Taught 【 Display / hide

  • PRESENTATION TECHNIQUE

    2021

  • NUMERICAL METHODS

    2021

  • MEDICAL IMAGE PROCESSING

    2021

  • INDEPENDENT STUDY ON FUNDAMENTAL SCIENCE AND TECHNOLOGY

    2021

  • GRADUATE RESEARCH ON FUNDAMENTAL SCIENCE AND TECHNOLOGY 2

    2021

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Courses Previously Taught 【 Display / hide

  • 物理情報数学C

    Keio University, 2017, Autumn Semester, Major subject, Lecture, Within own faculty, 1h, 45people

    フーリエ変換、ラプラス変換、z変換

  • 医用画像工学

    Keio University, 2017, Spring Semester, Major subject, Lecture, Within own faculty, 1h, 50people

    医用画像

  • 物理情報工学実験AB

    Keio University, 2017, Spring Semester, Major subject, Laboratory work/practical work/exercise, Within own faculty, 3h, 40people

    プログラミング、周辺機器、センサー

  • 数値計算法

    Keio University, 2017, Spring Semester, Major subject, Lecture, Within own faculty, 1h, 80people

    数値解析、C言語、MATLAB

  • 数値計算法

    Keio University, 2016, Spring Semester, Major subject, Lecture, Within own faculty, 1h, 90people

    数値解析、C言語、MATLAB

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Educational Activities and Special Notes 【 Display / hide

  • C言語プログラミング入門 C99対応

    2009.09

    , Development of Textbook and Teaching Material

  • 数値計算法基礎

    2006.04

    , Development of Textbook and Teaching Material

  • C言語によるプログラミングの基礎

    2002.07

    , Development of Textbook and Teaching Material

 

Social Activities 【 Display / hide

  • 理工学部体育会 少林寺拳法部

    2011.04
    -
    Present

     View Summary

    少林寺拳法部部長

  • 慶應義塾大学公認団体Prismy Tennis Club

    2003.04
    -
    2015.03
  • (財)豊田理化学研究所

    2001.04
    -
    2003.03
  • 産業技術総合研究所 新技術実用化事業成果展開委員会

    1997.11
    -
    2000.10
  • アーヘン工科大学

    1995.10
    -
    1996.09

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Memberships in Academic Societies 【 Display / hide

  • 日本美容皮膚科学会, 

    2018.07
    -
    Present
  • (NPO法人)パーソナルコンピュータ利用技術学会, 

    2011.11
    -
    Present
  • 日本香粧品学会, 

    2011.06
    -
    Present
  • バイオフィリアリハビリテーション学会, 

    2011.04
    -
    Present
  • (公益社団法人)計測自動制御学会, 

    2010.10
    -
    Present

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Committee Experiences 【 Display / hide

  • 2018.08
    -
    2019.03

    プログラム委員会委員, 動的画像処理実利用化ワークショップ DIA2019

  • 2018.07
    -
    Present

    会員, 日本美容皮膚科学会

  • 2018.04
    -
    2018.12

    プログラム委員会委員, ビジョン技術の実利用ワークショップ ViEW2018

  • 2017.08
    -
    2018.03

    プログラム委員会委員, 動的画像処理実利用化ワークショップ DIA2018

  • 2017.04
    -
    2017.12

    プログラム委員会委員, ビジョン技術の実利用ワークショップ ViEW2017

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