Multi-view 3D spherical display based on monocular projector and fish-eye lens

2022 Fiscal Year Final Research Report

• Project/Area Number: 20K12123
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 62040:Entertainment and game informatics-related
• Research Institution: Iwate Prefectural University
• Principal Investigator: Prima Oky Dicky Ardiansyah 岩手県立大学, ソフトウェア情報学部, 教授 (20344624)
• Co-Investigator(Kenkyū-buntansha): 角 薫 公立はこだて未来大学, システム情報科学部, 教授 (20332752)
• Project Period (FY): 2020-04-01 – 2023-03-31
• Keywords: 球体ディスプレイ / 魚眼レンズ / 3D / 多視点映像 / 投影返還

Outline of Final Research Achievements

This study aims to provide a 3D spherical display capable of displaying 3D images from two viewpoints at a practical level and at a low cost. First, based on a video projection method involving a monocular 3D projector combined with a fisheye lens, we implemented a generic conversion equation between the fisheye lens model and the sphere projection model (Lambert azimuthal equal-area projection). Next, we conducted experiments on the perceived impression of 3D images viewed from a spherical display by displaying 3D content based on the user's correct viewpoint direction and 3D content based on the user's preferred viewpoint direction. The results showed that the content placed with no ground (floor) gave the highest perceived impression in the user's preferred viewpoint direction.

Free Research Field

ヒューマンコンピュータインタラクション

Academic Significance and Societal Importance of the Research Achievements

近年、3Dコンテンツの普及が進み、それらを表示するための機器も多様化している。今後、3Dゲームだけでなく、メーターバースコンテンツも3D球体ディスプレイで表示できるようになれば、3Dコンテンツを活用したワークフローに大いに役立つと思われる。