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Innovative gamma-ray imaging based on super-resoluton technique

Research Project

Project/Area Number 20K20923
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 15:Particle-, nuclear-, astro-physics, and related fields
Research InstitutionWaseda University

Principal Investigator

KATAOKA JUN  早稲田大学, 理工学術院, 教授 (90334507)

Project Period (FY) 2020-07-30 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2021: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2020: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
KeywordsX線ガンマ線イメージング / 機械学習 / スパースコーディング / 超解像
Outline of Research at the Start

一般に高エネルギー実験や核医学で得られる画像は統計との闘いであり、解像度も十分ではない。とくに、ガンマ線は可視光のように集光できず、光子1つ1つを検出する特殊な技術が必要なため、画像処理でも大きな後れを取っている。本研究では10 keVから10 GeV のガンマ線画像で広く適用可能なスパースコーディング技術を開発し、医療・天文分野の新たな革新を狙う。

Outline of Final Research Achievements

In this study, we developed a new sparse coding technique that can be widely applied to X-ray and gamma-ray images from 10 keV to 10 GeV, and evaluated its performance quantitatively. In the application to space science, we succeeded in sharpening the all-sky map acquired by the Fermi Gamma-ray astronomical satellite and established a new method for automatically detecting transient sources like flaring AGN. In the medical application, we have improved the image quality by sharpening the photon counting CT images. Furthermore, we have developed a new visualization system that can visualize X-rays and gamma rays at the same time. By applying four types of machine learning techniques, we have succeeded in sharpening/improving the images in a short time.

Academic Significance and Societal Importance of the Research Achievements

近年、科学分野においても天文画像からの新天体発見やブラックホールの撮像など、機械学習の様々な応用が試みられている。一般に、画像における特徴量の抽出には、十分な解像度とコントラストをもつ膨大な学習データ(教師データ)が必要となるが、高エネルギー実験で得られる画像は総じてイベント数が少なく、解像度も十分ではない。医療分野に目を向けると、次世代診断技術であるフォトンカウンティングCTや核医学イメージングでは、同様に画質の良し悪しが診断精度を決める鍵となる。本研究で開発した機械学習は、これらX線ガンマ線イメージングに特化した新しいアプローチで画像の鮮鋭化を可能とし、さまざまな応用が期待される。

Report

(3 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • Research Products

    (30 results)

All 2022 2021 2020 Other

All Journal Article (13 results) (of which Peer Reviewed: 13 results,  Open Access: 9 results) Presentation (13 results) (of which Int'l Joint Research: 7 results) Remarks (4 results)

  • [Journal Article] Multi-modal 3D imaging of radionuclides using multiple hybrid Compton cameras2022

    • Author(s)
      Akihisa Omata, Miho Masubuchi, Nanase Koshikawa, Jun Kataoka, Hiroki Kato, Atsushi Toyoshima, Takahiro Teramoto, Kazuhiro Ooe, Yuwei Liu, Keiko Matsunaga, Takashi Kamiya, Tadashi Watabe, Eku Shimosegawa & Jun Hatazawa
    • Journal Title

      Scientific Reports

      Volume: 12 Issue: 1 Pages: 2546-2546

    • DOI

      10.1038/s41598-022-06401-6

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] コンプトンカメラを用いたアクティブ動態イメージング2021

    • Author(s)
      片岡 淳, 小俣 陽久, 増渕 美穂, 越川 七星
    • Journal Title

      MEDICAL IMAGING TECHNOLOGY

      Volume: 39 Pages: 223-228

    • NAID

      130008140950

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Discovery of non-equilibrium ionization plasma associated with the North Polar Spur and Loop I2021

    • Author(s)
      Marino Yamamoto, Jun Kataoka, Yoshiaki Sofue
    • Journal Title

      Monthly Notices of the Royal Astronomical Society

      Volume: 512 Issue: 2 Pages: 2034-2043

    • DOI

      10.1093/mnras/stac577

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Interaction of the galactic-centre super bubbles with the gaseous disc2021

    • Author(s)
      Sofue Yoshiaki, Kataoka Jun
    • Journal Title

      Monthly Notices of the Royal Astronomical Society

      Volume: 506 Issue: 2 Pages: 2170-2180

    • DOI

      10.1093/mnras/stab1857

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Spatial Variations of Magnetic Field along Active Galactic Nuclei Jets on Sub-parsec to Megaparsec Scales2021

    • Author(s)
      Ito Soichiro, Inoue Yoshiyuki, Jun Kataoka
    • Journal Title

      Astrophysical Journal

      Volume: 916 Issue: 2 Pages: 95-95

    • DOI

      10.3847/1538-4357/ac0827

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Machine-learning Application to Fermi-LAT Data: Sharpening All-sky Map and Emphasizing Variable Sources2021

    • Author(s)
      S.Sato, J.Kataoka, J.Kotoku, M.Taki, A.Oyama, L.Tagawa, K.Fujieda, F.Nishi, T.Toyoda
    • Journal Title

      Astrophysical Journal

      Volume: 913 Issue: 2 Pages: 83-83

    • DOI

      10.3847/1538-4357/abf48f

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Machine learning application to Fermi-LAT data: sharpening all-sky map and emphasizing variable sources2021

    • Author(s)
      Shogo Sato, Jun Kataoka, Soichiro Ito, Jun'ichi Kotoku, Masato Taki, Asuka Oyama, Takaya Toyoda, Yuki Nakamura, Marino Yamamoto
    • Journal Title

      The Astrophysical Journal

      Volume: 未定(出版中)

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Application of machine-learning models to improve the image quality of photon-counting CT images2021

    • Author(s)
      T. Toyoda, S. Sato, H. Kiji, J. Kataoka, J. Kotoku and M. Taki
    • Journal Title

      Journal of Instrumentation

      Volume: 未定(出版中)

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Origin of Galactic Spurs: New Insight from Radio/X-Ray All-sky Maps2021

    • Author(s)
      Kataoka Jun、Yamamoto Marino、Nakamura Yuki、Ito Soichiro、Sofue Yoshiaki、Inoue Yoshiyuki、Nakamori Takeshi、Totani Tomonori
    • Journal Title

      The Astrophysical Journal

      Volume: 908 Issue: 1 Pages: 14-14

    • DOI

      10.3847/1538-4357/abdb31

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Activity Bubbling Up2021

    • Author(s)
      Jun KATAOKA
    • Journal Title

      Nature Astronomy

      Volume: 5 Issue: 1 Pages: 11-11

    • DOI

      10.1038/s41550-020-01269-w

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Performance demonstration of a hybrid Compton camera with an active pinhole for wide-band X-ray and gamma-ray imaging2020

    • Author(s)
      Akihisa Omata, Jun Kataoka, Kazuya Fujieda, Shogo Sato, Eri Kuriyama, Hiroki Kato, Atsushi Toyoshima, Takahiro Teramoto, Kazuhiro Ooe, Yuwei Liu, Keiko Matsunaga, Takashi Kamiya, Tadashi Watabe, Eku Shimosegawa & Jun Hatazawa
    • Journal Title

      Nature Scientific Reports

      Volume: 10 Issue: 1 Pages: 14064-14064

    • DOI

      10.1038/s41598-020-71019-5

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] High-statistics image generation from sparse radiation images by four types of machine-learning models2020

    • Author(s)
      S. Sato, J. Kataoka, J. Kotoku, M. Taki, A. Oyama, L. Tagawa, K. Fujieda, F. Nishi
    • Journal Title

      Journal of Instrumentation

      Volume: 15 Issue: 10 Pages: P10026-P10026

    • DOI

      10.1088/1748-0221/15/10/p10026

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] First application of the super-resolution imaging technique using a Compton camera2020

    • Author(s)
      Sato,S.; Kataoka,J.; Kotoku,J.; Taki,M.; Oyama,A.; Tagawa,L.; Fujieda,K.; Nishi,F.; Toyoda,T.;
    • Journal Title

      NIM-A

      Volume: 969 Pages: 164034-164034

    • DOI

      10.1016/j.nima.2020.164034

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Presentation] Toyoda, T. et al. Performance demonstration of a novel Photon-counting CT for clinical application2022

    • Author(s)
      T.Toyoda, J.Kataoka, M.Sagisaka, M.Arimoto,D.Sato, K.Yoshiura, S.Kobayashi, H. Kawashima, J.Kotoku, S.Terazawa, S.Shiota, M.Ueda
    • Organizer
      16th Vienna Conference on Instrumentation 2022
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Performance demonstration of multi-modal imaging using hybrid Compton cameras2022

    • Author(s)
      Akihisa Omata, Miho Masubuchi, Nanase Koshikawa, Jun Kataoka, Hiroki Kato, Atsushi Toyoshima, Takahiro Teramoto, Kazuhiro Ooe, Yuwei Liu, Keiko Matsunaga, Takashi Kamiya, Tadashi Watabe, Eku Shimosegawa & Jun Hatazawa
    • Organizer
      16th Vienna Conference on Instrumentation 2022
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 広帯域X線ガンマ線撮像による生体マウス薬物動態(At-211)イメージングの実証2022

    • Author(s)
      増渕 美穂、小俣 陽久、越川 七星、片岡 淳、加藤 弘樹、豊嶋 厚史、大江 一弘、片山 大輔、寺本 高啓、松永 恵子、神谷 貴史、渡部 直史、下瀬川 恵久、畑澤 順
    • Organizer
      第69回 応用物理学会春季学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Performance demonstration of multi-modal imaging using hybrid Compton cameras2021

    • Author(s)
      A.Omata, M.Masubuchi, N.Koshikawa, J.Kataoka, H.Kato, A.Toyoshima, T.Teramoto, K.Ooe, Y.Liu, K.Matsunaga, T.Kamiya, T.Watabe, E.Shimosegawa & J. Hatazawa
    • Organizer
      IEEE Nuclear science symposium and medical imaging conference
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Pre-Experiments using photon-counting CT with machine learning models for drug delivery system monitoring2021

    • Author(s)
      T.Toyoda, S.Dima, M.Sagisaka, J.Kataoka, M.Arimoto, J.Kotoku, M.Taki, A.Oyama, S.Kobayashi, H.Kawashima, D.Sato, K.Yoshiura, S.Terazawa, S.Shiota, H.Ikeda, M.Ueda
    • Organizer
      IEEE Nuclear science symposium and medical imaging conference
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 広帯域X線ガンマ線による新規イメージング手法の開発と実証2021

    • Author(s)
      増渕 美穂、小俣 陽久、越川 七星、片岡 淳、加藤 弘樹、豊嶋 厚史、寺本 高啓、松永 恵子、神谷 貴史、渡部 直史、下瀬川 恵久、畑澤 順、上ノ町 水紀
    • Organizer
      第82回応用物理学会秋季年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 次世代型カラーX 線 CT における新システムの構築及びリングアーチファクト除去2021

    • Author(s)
      豊田 貴也、Sonia Dima、匂坂 真結、片岡 淳、有元 誠、川嶋 広貴、小林 聡、佐藤 大地、吉浦 宏大龍、寺澤 慎祐、塩田 諭、池田 博一
    • Organizer
      第82回応用物理学会秋季年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] ハイブリッド・コンプトンカメラを用いた核医学治療に向けた3次元イメージングの実証2021

    • Author(s)
      小俣 陽久、片岡 淳、増渕 美穂、加藤 弘樹、豊嶋 厚史、寺本 高啓、大江 一弘、劉 雨薇、松永 恵子、神谷 貴史、渡部 直史、下瀬川 恵久、畑澤 順
    • Organizer
      第68回応用物理学会春季年会
    • Related Report
      2020 Research-status Report
  • [Presentation] アクティブピンホールを用いた広帯域ガンマ線カメラの性能実証2020

    • Author(s)
      小俣 陽久、片岡 淳、増渕 美穂、加藤 弘樹、豊嶋 厚史、寺本 高啓、大江 一弘、劉 雨薇、松永 恵子、神谷 貴史、渡部 直史、下瀬川 恵久、畑澤 順
    • Organizer
      第81回応用物理学会秋季年会
    • Related Report
      2020 Research-status Report
  • [Presentation] 新潟県山間部における雷ガンマ線観測システムの開発と初期成果2020

    • Author(s)
      栗山映里, 片岡淳, 藤枝和也, 小俣陽久, 豊田貴也, 榎戸輝揚, 和田有希
    • Organizer
      2020年物理学会秋季年会
    • Related Report
      2020 Research-status Report
  • [Presentation] Wide-band imaging using a hybrid X-ray and gamma-ray camera2020

    • Author(s)
      A. Omata, J. Kataoka, K. Fujieda, S. Sato, E. Kuriyama, H. Kato, A. Toyoshima, K. Ooe, Y. Liu, K. Matsunaga, T. Kamiya, T. Watabe, E. Shimosegawa, J. Hatazawa
    • Organizer
      IEEE MIC/NSS 2020
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Demonstration of simultaneous imaging of phantoms as anticancer agents using a novel photon counting CT for drug delivery systems2020

    • Author(s)
      T. Toyoda, T. Maruhashi, H. Kiji, S. S. D. Dima, J. Kataoka, M. Arimoto, D. Sato, K. Yoshiura, S. Kobayashi, H. Kawashima, S. Terazawa, S. Shiota, H. Ikeda
    • Organizer
      IEEE MIC/NSS 2020
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Observations of three gamma-ray bursts during thunderstorms with high-time resolution2020

    • Author(s)
      E.Kuriyama, J. Kataoka, K. Fujieda, A. Omata, T. Toyoda, T. Enoto, Y. Wada
    • Organizer
      IEEE MIC/NSS 2020
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Remarks] 物理応物・修士論文賞(宮部賞)を受賞(小俣陽久)

    • URL

      http://www.spxg-lab.phys.waseda.ac.jp/

    • Related Report
      2021 Annual Research Report
  • [Remarks] 第82回応用物理学会(2021年秋季) 放射線分科会学生優秀講演賞を受賞(増渕美穂)

    • URL

      http://www.spxg-lab.phys.waseda.ac.jp/

    • Related Report
      2021 Annual Research Report
  • [Remarks] X線からガンマ線まで1台で同時に可視化できる装置を考案

    • URL

      https://www.waseda.jp/top/news/69935

    • Related Report
      2020 Research-status Report
  • [Remarks] 第81回・応用物理学会(2020年秋季) 放射線分科会学生優秀講演賞を受賞(2件)

    • URL

      http://www.spxg-lab.phys.waseda.ac.jp/

    • Related Report
      2020 Research-status Report

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Published: 2020-08-03   Modified: 2023-01-30  

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