Development of a Market for New Products in the field of Cryogenic Engineering

小西善雄教授古稀記念特

Region segmentation and parallel processing for creating large-scale CGHs in polygon source method

A novel technique is presented for calculating large-scale CGHs by using polygon-based method. In the technique,wave fields are regionally segmented and propagated by using the shifted Fresnel method. As a result, large CGHs can be calculated even in the case that the whole frame buffer can not be stored in main memory. The produced full-parallax CGH has the size of four billion pixels and reconstructs the fine image of a smooth surface object accompanied with a strong depth sensation

Extremely high-definition full-parallax computer-generated hologram created by the polygon-based method

A large-scale full-parallax computer-generated hologram (CGH) with four billion (216 × 216) pixels is created to reconstruct a fine true 3D image of a scene, with occlusions. The polygon-based method numerically generates the object field of a surface object, whose shape is provided by a set of vertex data of polygonal facets, while the silhouette method makes it possible to reconstruct the occluded scene. A novel technique using the segmented frame buffer is presented for handling and propagating large wave fields even in the case where the whole wave field cannot be stored in memory. We demonstrate that the fullparallax CGH, calculated by the proposed method and fabricated by a laser lithography system, reconstructs a fine 3D image accompanied by a strong sensation of depth

Spatial 3D imaging by synthetic and digitized holography

A novel method named digitized holography is proposed for 3D display systems. This is the technique replacing the whole process of classical holography with digital processing of optical wave-fields. The digitized holography allows us to edit holograms and reconstruct spatial 3D images including real-existent objects and CG-modeled virtual objects.2011 3DTV-Conference: The True Vision - Capture, Transmission and Display of 3D Video (3DTV-CON 2011), 16-18 May 2011, Antalya, Turke

New techniques for wave-field rendering of polygon-based high-definition CGHs

Four novel techniques are introduced into polygon-based high-definition CGHs(PBHD-CGH) that feature the true-fine spatial 3D image accompanied with a strong sensation of depth. The first is algorithm for creatingspecular surfaces based on Phong reflection model. This is very useful for providing a feel of material to polygonal surfaces. The second technique is called digitized holography that replaces the entire processes of classical holography by their digital counterparts. The wave-field of real-existent objects can be optically reconstructed by the digitized holography. This technique makes it possible to edit the 3D scene of holograms or create mixed 3D scene of the real and virtual objects. Another technique for creating PBHD-CGH of real-existent objects is also proposed by a CG-like method using a 3D laser scanner that measures the 3D shape of the object. Finally,a prototype PBHD-CGH is demonstrated for creating landscape scenery. This CGH is intended to reconstruct a scene as if the viewers see mountain scenery through the window given by the CGH.he authors thank Prof. Kanaya for his assistance in 3D scan of live faces. The mesh data for the Venus object is provided courtesy of INRIA by the AIM@SHAPE Shape Repository. This work was supported by the JSPS.KAKENHI (21500114

Development and application of an ultra-miniaturized blood collecting/testing system by MEMS

This report outlines research, supported by a Kansai University special fund (2004). Collecting blood and sending it to a given destination is inevitable in micro-TAS application for the purpose of this research. Development of a micro-needle made of biodegradable polymer and a method for collecting blood with this micro-needle, evaluation of bloodstream characteristics in a micro-channel, and development of supporting technology for collecting and analyzing blood are discussed in this paper. In each case, successful new technologies were developed