Applied peripheral vision to wide-viewing image transfer and generation

2023 Fiscal Year Final Research Report

• Project/Area Number: 18H03247
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Review Section: Basic Section 60090:High performance computing-related
• Research Institution: Tokyo Institute of Technology
• Principal Investigator: Saito Suguru 東京工業大学, 情報理工学院, 准教授 (00323832)
• Co-Investigator(Kenkyū-buntansha): 内川 惠二 神奈川工科大学, 公私立大学の部局等, 研究員 (00158776)
• Project Period (FY): 2018-04-01 – 2023-03-31
• Keywords: コントラス感度関数 / 周辺視 / 画像フィルタ / レンダリング

Outline of Final Research Achievements

To estimate the required rendering quality in the peripheral vision area in anticipation of a wide field of view immersive environment in future head-mounted displays, we measured the perceptual thresholds of luminance contrast in peripheral vision more widely than the previously measured range. The measurements were conducted for the nasal, temporal, upper, and lower sides of the monocular visual field of four participants in their 20s. The measurement results showed that the previously proposed contrast sensitivity function models, based only on measurements at low eccentricities, tend to estimate the threshold higher than the actual measurements at high eccentricities. We also proposed an image filter method for generating perceptual contrast images by applying the contrast sensitivity function to understand peripheral vision intuitively.

Free Research Field

コンピュータグラフィクス、画像処理

Academic Significance and Societal Importance of the Research Achievements

本研究で計測した周辺視野の輝度コントラスト知覚閾値は、将来のバーチャルリアリティ、リモートコミュニケーションに必要とされる高視野画像の作成、伝送のために要求される画像品質を明らかにするための基礎情報となる。また本研究で提案したコントラスト知覚画像を生成する画像フィルタ手法は、中心視から周辺視へと偏心角により変化するコントラスト感度特性がもたらす視野の見え方の直感的理解に役立つ。