HaptoMIRAGE- A Multi-user Autostereoscopic Visio-Haptic Display Yuta UEDA*1, Nobuhisa HANAMITSU*1, Yusuke MIZUSHINA*1, Mina SHIBASAKI*1
Kouta MINAMIZAWA*1, Hideaki NII*2, and Susumu TACHI*1*1

Graduate School of Media Design, Keio University
Research Laboratory, IIJ Innovation Institute, Inc.

*2

Figure 1: Concept drawing ofthe proposed system

Figure 2: System appearance

Figure 3: 3D Real image
on a tangible haptic display

Figure 4: Content-adjustable
tangible haptic display

Summery
HaptoMIRAGE is a visuo-haptic display that provides awide-angle autostereoscopic 3D image on the content-adjustable
haptic display so that it enables us to have an enchant interaction
with the virtual world via tangible object with multi-modal
sensation not only by one user but also by multi users.
Our aim is to implement a platform for storytelling,entertainment and creative collaboration by combining 3D
vision and haptic sensation in shown Figure 1. Based on ouractive-shttered real image autostereoscopic technology [Nii et al,2012], we have developed a 3D image projection technology for
multi users that provides autostereoscopic real image in midair
with a view of 180 degrees. We have also developed a contentadjustable haptic display based on the simple and realistic record& playback method [Minamizawa et al, 2012], of which we caneasily design the shape and the vibrotactile sensation according
to the scenario of the content.

Active-shuttered Real Image Autostereosopy
The 180 degrees autostereoscopic display consists of threecomponents such as Figure 2; each component has 60 degrees
field of view, and provides an autostereoscopic image for one
user. The Fresnel lens makes the real image from the LCDdisplay, and the position of the user is measured by camerabased motion capture system, and the active shutter usingtransparent LCD panel provides the time-divided rays of thelight for left-eye and right-eye. Then the user can see the real
image as a floating 3D image in shown Figure 3. In this way theusers up to three can see the autostereoscopic image fromdifferent viewpoints at the same time.

Content-Adjustable Tangible Haptic Display
The haptic display has multiple vibrators to provide spatiallydistributed haptic sensation to user. In order that user canfabricate the form of the haptic display, we developed a creation
method of haptic display using polymer clay and multiple
vibrotactile actuators. The record and play-back method of
haptic sensation is based on the method of TECHTILE toolkit[Minamizawa et. al.] and then the creator can design both theshape and applied sensation according to the content such as
Figure 4.

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SIGGRAPH 2013, July 21 – 25, 2013, Anaheim, California.
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ACM 978-1-4503-2261-4/13/07

Figure 5: System construction of the autostereoscopic display

User Experience
By using Active-Shuttered Real Image Autostereoscopy
method and contents adjustable haptic display, we realized thatmultiple users could experience with 3D contents via using
haptic display. The user can sense the vibro-tactile sensationfrom the feeling of moving or texture of 3D contents.
Additionally to this, haptic display can be fabricated various
shapes that are contents adjustable. Therefore, the user canexperience the story with using the objects that includes theworld of story.

Acknowledgment
This research is supported by JST-CREST Haptic Media project.

References
NII, H., ZHU, K., YOSHIKAWA, H., NYAN, L, H., ROLAND, A., AND
NAKATSU, R. 2012. Fuwa-Vision: An auto-stereoscopic floatingimage display. In Proceedings of ACM SIGGRAPH Asia 2012Emerging Technologies Singapore.
MINAMIZAWA, K., KAKEHI, Y., NAKATANI, M., MIHARA, S., AND
TACHI, S. 2012. TECHTILE toolkit - A prototyping tool fordesign and education of haptic media. In Proceedings of ACM
VRIC 2012, Laval, France.