Active projection based on high-speed optical devices

2014 Fiscal Year Final Research Report

• Project/Area Number: 24680011
• Research Category: Grant-in-Aid for Young Scientists (A)
• Allocation Type: Partial Multi-year Fund
• Research Field: Media informatics/Database
• Research Institution: Gunma University (2014); The University of Tokyo (2012-2013)
• Principal Investigator: OKU Hiromasa 群馬大学, 大学院理工学府, 准教授 (40401244)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 拡張現実感 / プロジェクター / 高速光学系

Outline of Final Research Achievements

In this project, basic study on active projection technology and its applications, including prototype system development, were conducted. The active projection technology is a new projection method based on the high-speed control of projector's focal length and projecting direction using high-speed optical device/unit.
A new high-speed depth image measurement method was developed, which use a light field illumination that has different intensity pattern depending on the distance from the projector. A high-speed depth image estimation (< 1/1000 s) was demonstrated. The reason of this high-speed estimation is that the depth can be estimated from the projected pattern directly.
A dynamic projection mapping method was also developed based on the developed active projection system. Smooth projection of a facial expression on a randomly moving table tennis ball was demonstrated successfully.

Free Research Field

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