Dihedral corner reflector arrays (DCRAs) are imaging devices that form real images and are used in a variety of applications, including floating virtual touchscreens and image presentation around physical objects. However, they induce several types of degradations to floating images. It is desirable to suppress these degradations to provide better viewing experiences. This paper proposes a method of suppressing degradations which appear as high-frequency noise by using mechanical vibration. The effects of vibrating the DCRA were confirmed through an analysis of the floating image quality in the frequency domain.
Yuchi Yahagi, Shogo Fukushima, Saki Sakaguchi, and Takeshi Naemura: “Suppression of floating image degradation using a mechanical vibration of a dihedral corner reflector array,” Optics Express, vol. 28, issue 22, pp. 33145 – 33156 (2020.10).
Yuchi Yahagi, Shogo Fukushima, Saki Sakaguchi, Hajime Itsukaichi, and Takeshi Naemura: “ViPlate: Suppressing Mid-Air Image Degradation by Vibrating a Retro-Transmissive Plate,” ACM SIGGRAPH Emerging Technologies (2020.8).
Dean’s Award, Faculty of Engineering, The University of Tokyo, 2020.3.24.
優秀卒業論文賞 (Outstanding thesis award), Department of Information and Communication Engineering, The University of Tokyo, 2020.3.24.