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Displaying 1-12 out of 12 total
3D high dynamic range display system
Found in: Mixed and Augmented Reality, IEEE / ACM International Symposium on
By Saeko Shimazu,Daisuke Iwai,Kosuke Sato
Issue Date:October 2011
pp. 235-236
This paper introduces a new high dynamic range (HDR) display system that generates a physical 3D HDR image without using stereoscopic methods. To boost contrast beyond that obtained using either a hardcopy or a projector, we employ a multi-projection syste...
Dynamic control of multiple focal-plane projections for eliminating defocus and occlusion
Found in: Virtual Reality Conference, IEEE
By Momoyo Nagase,Daisuke Iwai,Kosuke Sato
Issue Date:March 2010
pp. 293-294
This paper presents a novel dynamic control of multiple focal-plane projections. Our approach multiplexes the projectors' focal-planes so that all the displayed images are focused. The projectors are placed at various locations with various directions in t...
Making Graphical Information Visible in Real Shadows on Interactive Tabletops
Found in: IEEE Transactions on Visualization and Computer Graphics
By Mariko Isogawa,Daisuke Iwai,Kosuke Sato
Issue Date:September 2014
pp. 1-1
We introduce a shadow-based interface for interactive tabletops. The proposed interface allows a user to browse graphical information by casting the shadow of his/her body, such as a hand, on a tabletop surface. Central to our technique is a new optical de...
DeforMe: projection-based visualization of deformable surfaces using invisible textures
Found in: SIGGRAPH Asia 2013 Emerging Technologies (SA '13)
By Parinya Punpongsanon, Daisuke Iwai, Kosuke Sato
Issue Date:November 2013
pp. 1-3
In this paper, we present DeforMe, a new projection-based mixed reality technique for augmenting deformable surfaces with deformation rendering graphics. DeforMe combines a geometry tracking method with a deformation reconstruction model to estimate the ta...
Augmenting physical avatars using projector-based illumination
Found in: ACM Transactions on Graphics (TOG)
By Anselm Grundhöfer, Bernd Bickel, Daisuke Iwai, Markus Gross, Amit Bermano, Philipp Brüschweiler
Issue Date:November 2013
pp. 1-10
Animated animatronic figures are a unique way to give physical presence to a character. However, their movement and expressions are often limited due to mechanical constraints. In this paper, we propose a complete process for augmenting physical avatars us...
Optically hiding of tabletop information with polarized complementary image projection: your shadow reveals it!
Found in: Proceedings of the ACM International Conference on Interactive Tabletops and Surfaces (ITS '11)
By Daisuke Iwai, Kosuke Sato, Mariko Miki
Issue Date:November 2011
pp. 260-261
We propose the concept and implementation of a graphical information hiding technique for interactive tabletops where users can view the information by simply casting real shadows. We placed three projectors (one in the rear and two in the front) in such a...
Snail light projector: interaction with virtual projection light in hyper-slow propagation speed
Found in: Proceedings of the 7th International Conference on Advances in Computer Entertainment Technology (ACE '10)
By Daisuke Iwai, Keisuke Matsuzaki, Kosuke Sato
Issue Date:November 2010
pp. 114-115
We propose a novel video projection system, the Snail Light Projector, where light emitted from a video projector travels at virtual hyper-slow speed. We define hyper-slow light as the light that creates a number of spatio-temporal video containing images ...
Superimposing dynamic range
Found in: ACM Transactions on Graphics (TOG)
By Daisuke Iwai, Oliver Bimber
Issue Date:December 2008
pp. 1-49
We present a simple and cost-efficient way of extending contrast, perceived tonal resolution, and color space of reflective media, such as paper prints, hardcopy photographs, or electronic paper displays. A calibrated projector-camera system is applied for...
Superimposing dynamic range
Found in: ACM SIGGRAPH 2008 new tech demos (SIGGRAPH '08)
By Daisuke Iwai, Oliver Bimber
Issue Date:August 2008
pp. 1-1
Navigator is a circuitous Flash-based CD-Rom with Navigation of environments --- of the one on CD and of the real ones depicted in the work --- as its theme. At the end of each animation sequence --- figurative, abstract and photographic ---, choices need ...
The visual computing of projector-camera systems
Found in: ACM SIGGRAPH 2008 classes (SIGGRAPH '08)
By Anselm Grundhofer, Daisuke Iwai, Gordon Wetzstein, Oliver Bimber
Issue Date:August 2008
pp. 110-110
This article focuses on real-time image correction techniques that enable projector-camera systems to display images onto screens that are not optimized for projections, such as geometrically complex, colored and textured surfaces. It reviews hardware acce...
Limpid desk: see-through access to disorderly desktop in projection-based mixed reality
Found in: Proceedings of the ACM symposium on Virtual reality software and technology (VRST '06)
By Daisuke Iwai, Kosuke Sato
Issue Date:November 2006
pp. 112-115
We propose Limpid Desk which supports document search on a real desktop with virtual transparentizing of the upper layer of a document stack in projection-based mixed reality (MR)environments. In the system, users can visually access a lower layer document...
Heat sensation in image creation with thermal vision
Found in: Proceedings of the 2005 ACM SIGCHI International Conference on Advances in computer entertainment technology (ACE '05)
By Daisuke Iwai, Kosuke Sato
Issue Date:June 2005
pp. 213-216
We introduce how to involve the heat sensation in image creation by using thermal vision. We develop "ThermoTablet" which can detect touch regions of physical input objects on a sensing surface using changes of a temperature distribution of the surface whe...