Encoded display system based on individuality of the human visual system by using 5D light field display

2018 Fiscal Year Final Research Report

• Project/Area Number: 16K00233
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Perceptual information processing
• Research Institution: Nagoya Institute of Technology
• Principal Investigator: Fumihiko Sakaue 名古屋工業大学, 工学(系)研究科(研究院), 准教授 (00432287)
• Research Collaborator: SATO Jun
• Project Period (FY): 2016-04-01 – 2019-03-31
• Keywords: ライトフィールドディスプレイ / 暗号化画像提示 / 生体認証ディスプレイ / 画像の多重投影 / 5次元ライトフィールド

Outline of Final Research Achievements

We proposed an image displaying system which represents encoded images by visual system individuality. In this system, the encoded images are represented on the display and the images are decoded by the characteristics of a target human. The target cannot notice image decoding because the encoded images are decoded by his visual system. In contrast, another user cannot observe the images because characteristics of their visual systems are different from the target. By this natural image decoding system, we achieve secure displaying system which disturbs voyeur. For this objective, we constructed 5D light field display system which can control general light field as well as light spectrum. In addition, we propose measuring system of individuality visual systems. We also propose multiplex image projections based on the measured visual characteristic. In the multiplex image projection, observers observe different images along with their characteristics.

Free Research Field

コンピュータビジョン，ライトフィールド画像処理

Academic Significance and Societal Importance of the Research Achievements

本課題で提案したシステムは，情報化社会における情報伝達手段において最も脆弱とされている人間に対する直接的な情報提示に着目したものである．これは，パスワード管理のわずらわしさを伴うことなく安全な情報提示を実現した方法と考えられ，ソーシャルハッキングと呼ばれる直接的な情報の盗撮やパスワード取得への対抗手段として有効と考えられる．