The integral three-dimensional (3D) display is an ideal visual 3D user interface. It is a display method that fulfills many of the physiological factors of human vision. However, in integral 3D displays for mobile applications that use direct-view flat panels to display elemental images, color moiré is a problem that occurs because of the sampling of subpixels by elemental lenses and the insufficient resolution and depth reproduction of the reconstructed 3D image. In the conventional moiré reduction method, the degree of defocus of elemental lenses has to be set to a large value, which is one of the factors that reduces the performance in terms of depth reproduction. In contrast, only one-step optics can be installed and the installation positions are limited in the conventional wobbling method. This is because, in the method, which uses a birefringent optical element, two-step optics are thicker than the focal length of the lens array. For this reason, it was difficult to achieve ideal moiré reduction and depth reproduction performance improvements. To solve these problems, we propose a method that utilizes multiple optical wobbling spatiotemporal multiplexing using polarization diffractive elements and liquid-crystal polarization controllers. Using the proposed method, the wobbling optics can be designed to be thin, allowing two-step optics to be installed between the display panel and lens array. When the moiré modulation degree without wobbling is normalized as 100%, it decreases to 25% with wobbling. The proposed method not only achieves effective color moiré reduction without deteriorating the 3D image quality, but also can double the resolution of the elemental images to improve the depth reproduction.

The integral three-dimensional (3D) display is an ideal visual 3D user interface. It is a display method that fulfills many of the physiological factors of human vision. However, in integral 3D displays for mobile applications that use a direct viewing flat panel to display elemental images, the occurrence of color moiré is a problem owing to the sampling of subpixels by the elemental lenses and the insufficient resolution and depth reproduction performance of the reconstructed 3D image. We propose a method to solve these problems that utilizes optical wobbling spatiotemporal multiplexing using a birefringent element and a polarization controller. With the conventional moiré reduction method, the degree of defocus of el-ementallenses has to be set to a large value, which has also been a factor that reduces the depth reproduction performance. We show that effective color moiré reduction can be achieved with a slight defocus of elemental lenses and without deteriorating depth reproducibility by using the proposed optical wobbling method.

This paper presents a novel regularity evaluation of placement structure and MOS analog specific layout techniques called diffusion sharing and well island generation, which are developed based on sequence-pair. The regular structures such as topological row, array and repetitive structure are characterized by the way of forming subsequences of a sequence-pair. A placement objective is formulated balancing the regularity and the area efficiency. Furthermore, diffusion sharing and well island can be also identified looking into forming of a sequence-pair. In experiments, we applied our regularity-oriented placement mixed with the constrait-driven technique to real analog designs, and attained the results comparable to manual designs even when imposing symmetry constraints. Besides, the results also revealed the regularity serves to increase row-structures applicable to the diffusion-sharing for the area and wire-length saving.

When making a TV program in a studio, care must be taken that the camera does not shoot beyond the boundary of the studio set. In addition, limitations in cost and space for the set must be taken into account. In a virtual studio, on the other hand, we can solve this cost and space problem, but in turn, actors are requested to perform in front of a blue background screen, which is not always an easy task for them. To solve these problems associated with real studios and virtual studios, we have developed a new type of virtual studio called Real Space-based Virtual Studio in which a real space image and virtual space image are combined naturally with no boundary seam. There are two major advantages in using this new virtual-real hybrid system. One is that the actors can concentrate on their role in the real studio sets, and the other is that camera work can be done without worrying about off-screen areas of the set. In the present study, we constructed an omnidirectional image with ultra high-definition features and combined it as a virtual studio image with a real studio image. We have developed an integration system and from the experimentation we have shown that the omnidirectional images and the real studio images can combine smoothly and naturally.

Article The channeled-BSG: a universal floorplan for simultaneous place/route with IC applications Share on Authors: Shigetoshi Nakatake Department of Electrical and Electronic Engineering, Tokyo Institute of Technology Department of Electrical and Electronic Engineering, Tokyo Institute of TechnologyView Profile , Keishi Sakanushi Department of Electrical and Electronic Engineering, Tokyo Institute of Technology Department of Electrical and Electronic Engineering, Tokyo Institute of TechnologyView Profile , Yoji Kajitani Department of Electrical and Electronic Engineering, Tokyo Institute of Technology Department of Electrical and Electronic Engineering, Tokyo Institute of TechnologyView Profile , Masahiro Kawakita Semiconductor Systems Engineering Center, Toshiba Corporation Semiconductor Systems Engineering Center, Toshiba CorporationView Profile Authors Info & Claims ICCAD '98: Proceedings of the 1998 IEEE/ACM international conference on Computer-aided designNovember 1998 Pages 418–425https://doi.org/10.1145/288548.289064Online:01 November 1998Publication History 9citation195DownloadsMetricsTotal Citations9Total Downloads195Last 12 Months1Last 6 weeks0 Get Citation AlertsNew Citation Alert added!This alert has been successfully added and will be sent to:You will be notified whenever a record that you have chosen has been cited.To manage your alert preferences, click on the button below.Manage my AlertsNew Citation Alert!Please log in to your account Save to BinderSave to BinderCreate a New BinderNameCancelCreateExport CitationPublisher SiteGet Access