Volumetric Display Depicting Interactive Volumetric Images Unveiled at SIGGRAPH 2024 Emerging Technologies | JVCKENWOOD Press Release

■ Research Overview

Assistant Professor Kota Kumagai and Professor Yoshio Hayasaki from the Center for Optics Education and Research at Utsunomiya University and a research group at the Future Creation Research Institute of JVCKENWOOD have developed a volumetric display system that can draw interactive volumetric images. In addition to being able to directly display palm-sized volumetric images in the real world, this display also enables interaction in which images can be manipulated according to the user’s movements. The results of this research will be presented at SIGGRAPH2024, a high-level conference in computer graphics to be held in Denver, USA from July 28 to August 1.https://s2024.siggraph.org/Emerging technologieshttps://s2024.siggraph.org/program/emerging-technologies/) will be displayed in.

Figure 1: SIGGRAPH letters and logo drawn using this system.

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・Proposed a volumetric display system using dual-path stereoscopic laser drawing method.

・By developing an optical system and drawing method in which two laser paths work together to draw images, we achieved palm-sized images with high pixel density.

・We created a system that reflects the user's hand movements in drawing the image in real time, making it possible to interact with volumetric images.

■ Research background

Volumetric display is a technology that draws images by creating volumetric pixels in the real world. Multiple people can view 3D images in 360 degrees without having to wear a device such as a head-mounted display. So far, our research team has proposed a 3D laser writing method using pixels generated by a femtosecond laser and a spatial light phase modulator (LCOS-SLM), and developed a volumetric display using this method. However, there was a problem in increasing the image size.
In this research, we developed a display system that coordinates two laser drawings and a drawing method that uses JVCKENWOOD's LCOS device to achieve high pixel density and palm-sized images. Furthermore, by building a system that recognizes movements in the external world and reflects them in the volumetric image drawing, we enabled users to interact with volumetric images in real time.

■ Research results

The volumetric display system in this proposal consists of two optical systems for holographic laser writing. Each optical system has a 3D beam scanning system consisting of a galvanometer scanner and a variable focal length lens, and as shown in Fig. 2(a), three light-emitting points are placed in a volume of 10 × 10 × 10 cm that can be generated in dimensions. Fig. 2(b) is a volumetric image of a sphere drawn using two optical paths for laser drawing. By introducing the drawing pattern into the system, it is possible to draw any pattern.
Visitors to the exhibition will be able to view this volumetric video content and will also have the experience of interactively interacting with the video through hand gestures.

Figure 2-(a) Creating 3D pixels.

Figure 2-(b) Volumetric image of two fields.

■ Future outlook

In the future, we will enhance the collaborative drawing of focal point design using beam scanning and spatial light modifiers from hardware improvements and algorithm development, and aim to achieve a volumetric display system that can express objects in more complex shapes as volumetric images thereof.

■ Presentation information

Title
3D display with dual-path 3D laser projection
Conference name
ACM SIGGRAPH 2024 Emerging Technologies Conference
Author Name
Kota Kumagai, Hisashi Oka, Kazuki Horikiri, Tetsuji Suzuki, and Yoshio Hayasaki
URL
https://doi.org/10.1145/3641517.3664387

■The author

Kota Kumagai
Utsunomiya University Optics Education and Research Center, Assistant Professor
https://kotakumagai.uu-core.com/

Hisashi Oka
JVCKENWOOD Future Creation Research Institute

Kazuki Horikiri
JVCKENWOOD Future Creation Research Institute

Tetsuji Suzuki
JVCKENWOOD Future Creation Research Institute

Yoshio Hayasaki｜Yoshio Hayasaki
Professor, Optics Education and Research Center, Utsunomiya University
https://i-photonics.sakura.ne.jp/j/Home.html

■Inquiries related to this matter

About the research content
Kota Kumagai, Assistant Professor, Optics Education and Research Center, Utsunomiya University, National University Foundation
Phone: 028-689-7121

Email:[email protected]

Regarding the press response
National University Foundation Utsunomiya University Department of Planning and Public Affairs Department of Planning and Public Affairs
Email: [email protected]
Phone: 028-649-5201 Fax: 028-649-5027

JVCKENWOOD Corporation Corporate Communications Division Public Relations Group
Email:[email protected]
Public Relations Officer Tel: 045-444-5232

Our release URL:https://www.jvckenwood.com/jp/press/2024/0729-01.html