Technology to improve the observer's three-dimensional feeling in video display devices

• Project/Area Number: 18K11503
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 61060:Kansei informatics-related
• Research Institution: Yamaguchi University
• Principal Investigator: Osa Atsushi 山口大学, 大学院創成科学研究科, 准教授 (90294652)
• Project Period (FY): 2018-04-01 – 2022-03-31
• Project Status: Completed (Fiscal Year 2021)
• Budget Amount: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000); Fiscal Year 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2018: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
• Keywords: 立体感 / 確率共鳴現象 / 映像デバイス / 画像 / ノイズ / 視覚ノイズ / 固視微動 / 臨場感 / 画像処理 / 確率共鳴

Outline of Final Research Achievements

The technology developed in this study improves the three-dimensional feeling perceived by the observer by superimposing dynamic visual noises based on a model of involuntary eye movement during fixation. Two types of image presentation methods were implemented, and the effectiveness of each method was confirmed. One was realized using an ordinary display monitor. The other was realized by illuminating a printed photograph with illumination containing dynamic visual noise. The combination with image recognition and personal recognition technologies is expected to be applied. The results of this study are also interesting for elucidating the mechanism of stereoscopic perception in the brain.

Academic Significance and Societal Importance of the Research Achievements

映像提示装置開発の歴史は，観察者に与える臨場感の飽くなき向上の歴史だといってもよい．これまで，映像提示装置の解像度や色再現性の向上，両眼視の情報付加などの方法がとられてきた．一方で，本研究では，観察者自身の立体感に関する感受性を向上させる技術によって，映像表示装置における映像の臨場感を向上させたいと考えた．本研究で得られた知見により，解像度の増加やステレオ情報の付与がなくても画像の鑑賞者に対してより立体感を感じる事ができる画像提示方法がありえることがわかった．これは，新たな映像や写真，絵画などの鑑賞方法の提供につながる物である．

Research Products

• [Journal Article] A computer simulation method for the motion sharpening phenomenon in human vision system (2022)
  • Author(s): Kouta Kaneko; Koki Otaka; Atsushi Osa
  • Journal Title: Proc. SPIE 12177, International Workshop on Advanced Imaging Technology (IWAIT) 2022 Volume: 12177 Pages: 75-75
  • DOI: 10.1117/12.2625982
  • Peer Reviewed
• [Journal Article] Image Quality Improvement of Image Enhancement Method using a Time Response Model of Human Vision (2020)
  • Author(s): 大高 洸輝, 長 篤志, 長峯 祐子, 西川 潤, 坂井田 功
  • Journal Title: The Journal of The Institute of Image Information and Television Engineers Volume: 74 Issue: 1 Pages: 215-221
  • DOI: 10.3169/itej.74.215
  • NAID: 130007771831
  • ISSN: 1342-6907, 1881-6908
  • Peer Reviewed / Open Access
• [Presentation] 実空間における視覚印象を再現するための実写画像の加工手法 (2021)
  • Author(s): 末吉 正和, 長 篤志
  • Organizer: 第16回日本感性工学会春季大会
• [Presentation] 画像投影を応用した動的な刺激が写真の立体感に与える影響 (2021)
  • Author(s): 松永 大季, 長 篤志
  • Organizer: 第16回日本感性工学会春季大会
• [Presentation] Simulation of image enhancement by stochastic resonance in the human vision system (2019)
  • Author(s): Naoki Kawaguchi, Atsushi Osa
  • Organizer: 2019 Joint International Workshop on Advanced Image Technology (IWAIT) and International Forum on Medical Imaging in Asia (IFMIA), 2019, Singapore, Singapore
  • Int'l Joint Research
• [Presentation] Depth perception shown in an angle illusion and controlled by visual noise (2018)
  • Author(s): Atsushi Osa
  • Organizer: 錯視に関する国際ワークショップ
  • Invited