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Model-based longitudinal analysis of dynamic multi-modal higher-dimensional data

Research Project

Project/Area Number 20K11881
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 61010:Perceptual information processing-related
Research InstitutionChiba University

Principal Investigator

Imiya Atsushi  千葉大学, 統合情報センター, 名誉教授 (10176505)

Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2022: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2021: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords多重解像度解析 / 多重線形主成分分析 / 縦断解析 / 四元数 / 情報圧縮 / 運動解析 / テンソル分解 / 動画像解析 / 横断解析 / 動画解析 / 教師無学習 / 多重線形解 / 非可換代数 / 多重線形解析 / テンソル / 時系列画像 / 主成分分析 / テンソル主成分分析 / 縦状解析 / 多次元多元データ / 多重線形型式
Outline of Research at the Start

高次多次元画像の検索・整合判定, 歪・変異部位の特定・抽出を行う情報科学的手法を構築するために, 高次多次元画像を多重線形型式によって表現し, 縦断解析(Longitudinal Analysis)によって高次多次元画像の時間的変化を定量的に取り扱う手法を開発する. さらに, 認識過程における歪補正を情報等価(Information Equalisation)として取り扱う手法を構築する.

Outline of Final Research Achievements

The quaternions express the three-dimensional vectors.
Using quaternions, the spatial motion field is expressed as three-dimensional tensor with quaternion elements. By applying the multi-linear principal component analysis based on the tensorial caliculus, it is possible to extract dominant motion field of the three-dimensional deformation field for longitudinal analysis of deformation of human organs, such as beating heart. This longitudinal analysis of deformation field characterise the types of deformation fields. This classification of the deformation fields will being new geometrical and information criterion for machine-based diagnosis assistance system. Furthermore, we developed a new pyramid-based image transformation for the harmonisation of the resolution of images in a sequence for the longitudinal analysis of image sequence.

Academic Significance and Societal Importance of the Research Achievements

本研究では, 多重線形型式の記述形式であるテンソルを利用して, 動的な高次多元高次画像の解析・認識・分類・蓄積・検索・判別を統一的に取り扱うことのできる体系を, 従来のベクトル空間におけるパターン認識において実績と蓄積のある部分空間法をテンソルに拡張した. さらに, 計測される微細構造の解析手法を, 画像理解の立場から構造を持った統計的幾何要素(テクスチャー)の解析理論の動的解析への拡張として捉え, 時間的に変動する3次元テクスチャーの特徴量解析理論を構築した.

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (7 results)

All 2024 2023 2022 2021 2020

All Journal Article (5 results) (of which Peer Reviewed: 5 results,  Open Access: 1 results) Presentation (2 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] Mathematical Properties of Pyramid-Transform-Based Resolution Conversion and Its Applications2024

    • Author(s)
      Kento Hosoya, Kouki Nozawa, Hayato Itoh, Atsushi Imiya.
    • Journal Title

      J Math Imaging Vis

      Volume: 66 Issue: 2 Pages: 115-153

    • DOI

      10.1007/s10851-023-01166-7

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] α-Pixels for Hierarchical Analysis of Digital Objects2023

    • Author(s)
      Kouki Tosaka, Atsushi Imiya
    • Journal Title

      L. Calatroni et al. (Eds.): SSVM 2023 Lecture Notes in Computer Science

      Volume: 14009 Pages: 1-12

    • DOI

      10.1007/978-3-031-31975-4_51

    • ISBN
      9783031319747, 9783031319754
    • Related Report
      2023 Annual Research Report 2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Discrete Linear Geometry on Grid System2022

    • Author(s)
      Linh Kieu Troung, Atsushi Imiya
    • Journal Title

      SN Computer Science

      Volume: 3,72 Issue: 1

    • DOI

      10.1007/s42979-021-00937-6

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Subspace Discrimination Method for Images Using Singular Value Decomposition2021

    • Author(s)
      Eri Mochizuki, Haruka Sone, Hayato Itoh, Atsushi Imiya
    • Journal Title

      Lecture Notes in Computer Science

      Volume: 13018 Pages: 287-298

    • DOI

      10.1007/978-3-030-90436-4_23

    • ISBN
      9783030904357, 9783030904364
    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Decomposition and construction of higher-dimensional neighbourhood operations2020

    • Author(s)
      Atsushi Imiya
    • Journal Title

      Pattern Recognit. Lett.

      Volume: 135 Pages: 321-318

    • DOI

      10.1016/j.patrec.2020.04.015

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] alpha-Pixels for Hierarchical Analysis of Digital Objects2023

    • Author(s)
      Kouki Tosaka, Atsushi Imiya
    • Organizer
      Scale Space and Variational Methods in Computer Vision - 9th International Conference
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] α-Pixels for Hierarchical Analysis of Digital Objects2023

    • Author(s)
      Kouki Tosaka, Atsushi Imiya
    • Organizer
      9th International Conference on Scale Space and Variational Methods in Computer Vision
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research

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Published: 2020-04-28   Modified: 2025-01-30  

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