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Displaying 1-26 out of 26 total
A LCD Cube Transporting High Dynamic Range Light Environments
Found in: Mixed and Augmented Reality, IEEE / ACM International Symposium on
By Kosuke Nakayama, Kosuke Sato
Issue Date:October 2003
pp. 323
No summary available.
   
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...
 
Analysis of Light Transport based on the Separation of Direct and Indirect Components
Found in: Computer Vision and Pattern Recognition, IEEE Computer Society Conference on
By Osamu Nasu, Shinsaku Hiura, Kosuke Sato
Issue Date:June 2007
pp. 1-2
No summary available.
 
Germination of the Active Lighting : An Introduction and Brief History of Our Research
Found in: Computer Vision and Pattern Recognition Workshop
By Shinsaku Hiura, Kosuke Sato, Ichiro Kanaya
Issue Date:June 2006
pp. 3
We have been engaged in the researches on the active lighting techniques for twenty years. At first, we proposed a method to measure the 3-D shape of the object by projecting multiple patterns of structured light, because it is much faster than the method ...
 
Real-Time Gesture Recognition by Learning and Selective Control of Visual Interest Points
Found in: IEEE Transactions on Pattern Analysis and Machine Intelligence
By Toshiyuki Kirishima, Kosuke Sato, Kunihiro Chihara
Issue Date:March 2005
pp. 351-364
For the real-time recognition of unspecified gestures by an arbitrary person, a comprehensive framework is presented that addresses two important problems in gesture recognition systems: selective attention and processing frame rate. To address the first p...
 
A Wearable Mixed Reality with an On-Board Projector
Found in: Mixed and Augmented Reality, IEEE / ACM International Symposium on
By Toshikazu Karitsuka, Kosuke Sato
Issue Date:October 2003
pp. 321
No summary available.
   
Displaying Shiny Objects under Virtual Lighting
Found in: Virtual Systems and MultiMedia, International Conference on
By Kosuke Sato, Yoshifumi Sakata
Issue Date:October 2001
pp. 825
This paper describes an extension of Image-Based Rendering (IBR) to represent the specularity of a real object in a virtual environment. A captured image of an object contains several kinds of physical information; its shape, color, texture, specularity an...
 
Shape Integration of Multi Stereo Images using Surveyed Points for an Archaeological Site
Found in: Shape Modeling and Applications, International Conference on
By Maki Nagano, Kosuke Sato, Kunihiro Chihara
Issue Date:March 1997
pp. 140
This paper proposes a new method of reconstructing entire 3D-shapes and colors of outdoor objects, especially of archaeological sites. The method integrates two kinds of data; (1)partial surfaces: inaccurate object surfaces with COLOR information which are...
 
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...
 
Fusing Depth from Defocus and Stereo with Coded Apertures
Found in: 2013 IEEE Conference on Computer Vision and Pattern Recognition (CVPR)
By Yuichi Takeda,Shinsaku Hiura,Kosuke Sato
Issue Date:June 2013
pp. 209-216
In this paper we propose a novel depth measurement method by fusing depth from defocus (DFD) and stereo. One of the problems of passive stereo method is the difficulty of finding correct correspondence between images when an object has a repetitive pattern...
 
Super-resolution with randomly shaped pixels and sparse regularization
Found in: 2013 IEEE International Conference on Computational Photography (ICCP)
By Tomoki Sasao,Shinsaku Hiura,Kosuke Sato
Issue Date:April 2013
pp. 1-11
This paper shows a random and distinct shape of each pixel improves the performance of super-resolution using multiple input images. Since the spatial light sensitivity distribution in each pixel of an image sensor is rectangular and identical, the process...
   
Real-Time Object Tracking without Feature Extraction
Found in: Pattern Recognition, International Conference on
By Takayuki MORITANI, Shinsaku HIURA, Kosuke SATO
Issue Date:August 2006
pp. 747-750
In this paper we propose an appearance-based tracking method without any feature extraction from the images. At first, range-finder system or stereo cameras measure the shape of the incoming object to prepare a CG model of the object. Then many images are ...
 
Real-Time Detection of Anomalous Objects in Dynamic Scene
Found in: Pattern Recognition, International Conference on
By Satoshi KAWABATA, Shinsaku HIURA, Kosuke SATO
Issue Date:August 2006
pp. 1171-1174
There are many methods to extract moving objects in a scene using background subtraction. However, most methods assume that there are no moving objects except intruders in the observing space. In this paper, we propose the iterative optimal projection meth...
 
Pseudo-transparent tablet based on 3D feature tracking
Found in: Proceedings of the 5th Augmented Human International Conference (AH '14)
By Kosuke Sato, Makoto Tomioka, Sei Ikeda
Issue Date:March 2014
pp. 1-2
This demonstration shows geometrically consistent image rendering that realizes pseudo-transparency in tablet-based augmented reality. The rendering method is based on the homography estimated by feature tracking and face detection using on-board rear and ...
     
Palm+Act: operation by visually captured 3D force on palm
Found in: SIGGRAPH Asia 2013 Emerging Technologies (SA '13)
By Shunsuke Yoshimoto, Kosuke Sato, Ryosuke Ono
Issue Date:November 2013
pp. 1-3
Recently, there has been considerable interest in technologies that appropriate human body parts, especially the skin, as an input surface for human-computer interfaces. Since human skin is always available and highly accessible, such on-body touch interfa...
     
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...
     
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 ...
     
A free-hand drawing with simultaneous projection of predicted guideline
Found in: ACM SIGGRAPH 2007 posters on XX (SIGGRAPH '07)
By Hirokatsu So, Ichiroh Kanaya, Kosuke Sato
Issue Date:August 2007
pp. 38-es
Figure 1 demonstrates a novel computer aided drawing system proposed by the authors. This system, which is called Hyperdraw, assists designers' drawing of sketches immediately and intuitively without disturbing their characteristic tastes of drawing and de...
     
Hyperdraw: a new computer aided drawing system based on prediction of drawing action
Found in: Proceedings of the international conference on Advances in computer entertainment technology (ACE '07)
By Hirokatsu So, Ichiroh Kanaya, Kosuke Sato
Issue Date:June 2007
pp. 234-235
Traditional pens and papers are often the most preferable drawing materials for industrial designers, though computer aided design (CAD) systems are widely used in industrial design field. Such CAD systems are too strict for designers to draw their sketche...
     
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...
     
User interface by real and artificial shadow
Found in: ACM SIGGRAPH 2006 Research posters (SIGGRAPH '06)
By Huichuan Xu, Ichi Kanaya, Kosuke Sato, Shinsaku Hiura
Issue Date:July 2006
pp. 83-es
Imposters are a powerful technique which has been widely used for many years in the graphics community. An imposter is a two dimensional image rendered onto a billboard which represents highly detailed geometry. Imposters can be created on the fly or pre-c...
     
User interface by real and artificial shadow
Found in: Material presented at the ACM SIGGRAPH 2006 conference (SIGGRAPH '06)
By Huichuan Xu, Ichi Kanaya, Kosuke Sato, Shinsaku Hiura
Issue Date:July 2006
pp. 83-es
Imposters are a powerful technique which has been widely used for many years in the graphics community. An imposter is a two dimensional image rendered onto a billboard which represents highly detailed geometry. Imposters can be created on the fly or pre-c...
     
Computer aided drawing system based on prediction of drawing action
Found in: Proceedings of the 2006 ACM SIGCHI international conference on Advances in computer entertainment technology (ACE '06)
By Hirokatsu Sou, Ichiro Kanaya, Kosuke Sato
Issue Date:June 2006
pp. 38-es
Computer Aided Design (CAD) systems are widely used recent years. In general, however, designers sketch product images by their own hands during early stages of designing. The authors aim to aid these freehand design by predicting and guiding designer's dr...
     
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...
     
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