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Analysis of object shape, pose and illumination from high-resolution images

Research Project

Project/Area Number 17K00239
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Perceptual information processing
Research InstitutionOkayama University

Principal Investigator

Migita Tsuyoshi  岡山大学, 自然科学研究科, 助教 (90362954)

Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Keywords3次元形状復元 / 未校正照度差ステレオ法 / 2眼ステレオ / 非線形最小2乗法 / 2次曲面 / SfM / 物体追跡 / 3次元形状復元 / 照度差ステレオ法 / コンピュータビジョン / 形状・照明・姿勢推定 / 高解像度画像
Outline of Final Research Achievements

In this research, we have developed an efficient formulation and implementation for various methods for image analysis that are formulated as optimization problems minimizing the differences between input and synthesized images that reflects estimated parameters. Specifically, an uncalibrated photometric stereo with two cameras and human motion analyses based on a SfM method are investigated. The proposed methods are designed to be efficient even on high-resolution images, by exploiting not only advanced mathematical techniques but also computational powers of modern highly-parallel processors.

Academic Significance and Societal Importance of the Research Achievements

本研究では,CGによる画像生成の逆問題として定式化される形状復元・物体追跡等のうち,ある種のクラスに属する問題に共通して現れる計算に着目し効率化や高機能化を検討した.特に高解像度画像や現代の高並列計算機の活用,また種々の画像生成モデルへの拡張性等に留意しており,今後の研究の更なる発展を支える重要な基盤技術を構成している.また,現時点の応用例として,従来1つのカメラを対象としていた未校正照度差ステレオ法を2つのカメラに拡張する一つの方法を確立し推定精度の向上を確認した.また,画像中の人物解析等での有効性も確認した.

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (7 results)

All 2020 2019 2018 2017

All Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (6 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] Uncalibrated Photometric Stereo Using Quadric Surfaces with Two Cameras2020

    • Author(s)
      Nasu T., Migita T., Shakunaga T., Takahashi N
    • Journal Title

      Frontiers of Computer Vision. IW-FCV 2020. Communications in Computer and Information Science

      Volume: 1212 Pages: 318-332

    • DOI

      10.1007/978-981-15-4818-5_24

    • ISBN
      9789811548178, 9789811548185
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Presentation] Uncalibrated Photometric Stereo Using Quadric Surfaces with Two Cameras2020

    • Author(s)
      Nasu T., Migita T., Shakunaga T., Takahashi N
    • Organizer
      IW-FCV 2020
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 光源の異なる画像を用いた楕円体と一葉双曲面のパラメータ推定2019

    • Author(s)
      那須巧海・右田剛史・尺長 健・高橋規一
    • Organizer
      FIT2019
    • Related Report
      2019 Annual Research Report
  • [Presentation] Batch Estimation for Face Modeling with Tracking on Image Sequence2019

    • Author(s)
      Tsuyoshi Migita, Ryuichi Saito and Takeshi Shakunaga
    • Organizer
      International Workshop on Frontiers of Computer Vision (IWFCV) 2019
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] 動画像中の顔追跡による3次元顔モデルの自動作成2018

    • Author(s)
      齋藤竜一, 右田剛史, 尺長健
    • Organizer
      電子情報通信学会技術研究報告, PRMU2017
    • Related Report
      2017 Research-status Report
  • [Presentation] 幾何学的距離に基づく楕円体フィッティングによる実時間人物姿勢追跡2018

    • Author(s)
      北村拓也, 右田剛史, 尺長健
    • Organizer
      電子情報通信学会技術研究報告, PRMU2017
    • Related Report
      2017 Research-status Report
  • [Presentation] 形状のブロック分割と基底を用いた表現によるインバースレンダリングの検討2017

    • Author(s)
      向山太基, 右田剛史, 尺長健:
    • Organizer
      MIRU2017
    • Related Report
      2017 Research-status Report

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Published: 2017-04-28   Modified: 2021-02-19  

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