Proposal of a New Presentation of Stereoscopic 3D Method Using Off-Picture Frame Effect

2023 Fiscal Year Final Research Report

• Project/Area Number: 19K20645
• Research Category: Grant-in-Aid for Early-Career Scientists
• Allocation Type: Multi-year Fund
• Review Section: Basic Section 90030:Cognitive science-related
• Research Institution: Suwa University of Science (2022-2023); Toyohashi University of Technology (2019-2021)
• Principal Investigator: Matsuda Yusuke 公立諏訪東京理科大学, 工学部, 助教 (10805120)
• Project Period (FY): 2019-04-01 – 2024-03-31
• Keywords: バーチャルリアリティ（VR） / 奥行き知覚 / 両眼立体視 / 枠効果 / 裸眼立体視ディスプレイ

Outline of Final Research Achievements

In this study, we investigated the properties of the "Off-Picture Frame Effect," a phenomenon in which the perceived depth of a 2D photograph increases when a "frame" is placed at a different depth from the photograph. The primary purposes were "to clarify what types of photograph the frame effect occurs for" and "To investigate whether the frame effect can be observed in stereoscopic 3D presentation devices other than 3D stereoscopic displays." As a result of the experiment, it became clear that "the frame effect occurs uniformly for a huge number of photographs" and "it can be seen even in a naked-eye 3D display." These results suggest that the off-picture frame effect is an auxiliary function to increase the perceived depth for various 3D presentation devices.

Free Research Field

実験心理学

Academic Significance and Societal Importance of the Research Achievements

ヒトの奥行き知覚メカニズムの解明は視覚研究において重要なトピックの一つである．しかしながら，奥行き手がかり同士のインタラクションが，奥行き知覚にどのように影響するかはは明らかではない．本研究から，両眼視差の処理が絵画的奥行き手がかりの処理に干渉することで，ユーザーが写真の奥行き感をより深く知覚することが示唆された．この結果は，奥行き知覚の際に，奥行き手がかり同士で何かしらの相互作用が起きていることを示しており，奥行き知覚のメカニズム解明への一助となるだろう．また，この仕組みを既存の3D提示デバイスに応用することにより，さらに質の高い3D画像・映像提示の実現が期待される．