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Article type: Cover
Pages Cover1-
Published: October 15, 2010
Released on J-STAGE: September 21, 2017
CONFERENCE PROCEEDINGS FREE ACCESSDownload PDF (17K) -
Article type: Index
Pages Toc1-
Published: October 15, 2010
Released on J-STAGE: September 21, 2017
CONFERENCE PROCEEDINGS FREE ACCESSDownload PDF (82K) -
Takayuki KURIHARA, Masahito YOKOUCHI, Yasuhiro TAKAKIArticle type: Article
Session ID: 3DIT2010-62/IDY2010-
Published: October 15, 2010
Released on J-STAGE: September 21, 2017
CONFERENCE PROCEEDINGS FREE ACCESSWith conventional electronic holography, because the distribution of diffracted light direction is uniform on the whole display screen, there is some region where an entire reconstructed image is not observed so that the region where an entire reconstructed image is observed is limited. In the present study, to enable the effective use of the diffraction capability of holograms, a lens is placed on the display screen to bend the light diffraction direction inward. The region where a reconstructed image is partly observed is vanished at a specified distance, and the width of viewing zone where an entire reconstructed image is observed is enlarged in the vicinity of that distance.View full abstractDownload PDF (598K) -
Tadashi MIYAHARA, Takeshi YAMAGUCHI, Hiroshi YOSHIKAWAArticle type: Article
Session ID: 3DIT2010-63/IDY2010-
Published: October 15, 2010
Released on J-STAGE: September 21, 2017
CONFERENCE PROCEEDINGS FREE ACCESSWe have investigated the image type computer-generated hologram that has full parallax and can be reconstructed with white light. The object of the hologram is processed from the 3D computer graphics polygon date and has shaded surface with hidden surface removal. The optical reconstructed image form the printed hologram is evaluated.View full abstractDownload PDF (670K) -
Tomoyoshi SHIMOBABA, Hirotaka NAKAYAMA, Nobuyuki MASUDA, Tomoyoshi ITOArticle type: Article
Session ID: 3DIT2010-64/IDY2010-
Published: October 15, 2010
Released on J-STAGE: September 21, 2017
CONFERENCE PROCEEDINGS FREE ACCESSElectroholography has been attracted as a three-dimensional (3D) display since holography can reconstruct and record a 3D object. In reconstruction, however, it is difficult for real-time reconstruction because its calculation cost is enormousness. In the report, we describe a fast calculation algorithm, wavefront recording method, which is capable of generating a 2,048×2,048 hologram from a 3D object with 3×10^4 points at 10 frames per second. In addition, we describe an improvement of the wavefront recording method, which cannot record the size of a 3D object larger than a hologram.View full abstractDownload PDF (702K) -
Hiroki UEHARA, Daichi HIRAI, Hiroki KAGAJO, Yasuyuki ICHIHASHI, Tomoyo ...Article type: Article
Session ID: 3DIT2010-65/IDY2010-
Published: October 15, 2010
Released on J-STAGE: September 21, 2017
CONFERENCE PROCEEDINGS FREE ACCESSThere are an amplitude modulation type and a phase modulation type in the hologram. Recently, not only the amplitude modulation type liquid crystal display but also the phase modulation type has come to be seen. Then, we constructed the electro-holography system with the phase modulation type liquid crystal display, and compared the current amplitude electro-holography. The phase hologram with high diffraction efficiency has produced an excellent result. The reconstructed image is bright even if the gray level is increased, and all amount of information of the liquid crystal display can be used-256 gray levels. Currently, we are designing the special purpose computer for the phase hologram.View full abstractDownload PDF (726K) -
Yuichi Iwadate, Miwa KatayamaArticle type: Article
Session ID: 3DIT2010-66/IDY2010-
Published: October 15, 2010
Released on J-STAGE: September 21, 2017
CONFERENCE PROCEEDINGS FREE ACCESSWe propose a method for generating an integral image of a three-dimensional (3D) object such as CG objects based on the principle of integral photography. In the proposed method, the oblique projection is applied to a virtual camera to capture the rays in a mass from the 3D object without geometric deformation. Thus a captured image of the virtual camera can be directly applied to a filter processing for suppressing aliasing due to sampling effects of the lens-array.View full abstractDownload PDF (602K) -
Noriji OISHIArticle type: Article
Session ID: 3DIT2010-67/IDY2010-
Published: October 15, 2010
Released on J-STAGE: September 21, 2017
CONFERENCE PROCEEDINGS FREE ACCESSThe methods to make some kind of stereoscopic images using MegaPOV, a custom unofficial version of POV-Ray, were studied. It was found that user_difined camera could be used for making Lenticular Images (LI), Integral Images (II) and Periodic Stereo Images (PSI), and camera_view could be used for making II and a part of PSI. These stereoscopic images are generated directly by rendering, and rendering times are much shorter than the methods using optical models.View full abstractDownload PDF (1057K) -
Yohei Shinozaki, Nichiyo Nago, Yasuhiro TakakiArticle type: Article
Session ID: 3DIT2010-68/IDY2010-
Published: October 15, 2010
Released on J-STAGE: September 21, 2017
CONFERENCE PROCEEDINGS FREE ACCESSWe have proposed a new super multi-view display system that enables to increase the number of viewpoints by combining a flat-panel three-dimensional display system and a multi-projection three-dimensional display system. We have demonstrated a super multi-view display having 256 viewpoints (SMV256.) In this study, we improved imaging properties of the SMV256. Horizontal shift of viewzones by horizontal shift of lenticular lenses is substituted with horizontal shift of viewzones by horizontal shift with prisms to improve accuracy of viewzones generation. Cylindrical lenses are set up to suppress influence of black matrixes due to low aperture ratio of flat-panel-displays.View full abstractDownload PDF (803K) -
Shoichiro IWASAWA, Sumio YANO, Masahiro KAWAKITA, Masahisa SAKAI, Yasu ...Article type: Article
Session ID: 3DIT2010-69/IDY2010-
Published: October 15, 2010
Released on J-STAGE: September 21, 2017
CONFERENCE PROCEEDINGS FREE ACCESSOur goal is to establish autostereoscopic display with natural and superior horizontal parallax. Projector array-based 70-inch screen display was our first implementation and it has a capability of giving smooth horizontal parallax narrower than interocular distance.View full abstractDownload PDF (1429K) -
Kenji YAMAMOTO, Takanori SENOH, Ryutaro OI, Yasuyuki ICHIHASHI, Taiich ...Article type: Article
Session ID: 3DIT2010-70/IDY2010-
Published: October 15, 2010
Released on J-STAGE: September 21, 2017
CONFERENCE PROCEEDINGS FREE ACCESSWe designed and manufactured 25-camera array. Each camera has 1600x1200 pixel and can be located at 30-millimeter intervals, which would be a feature of this camera array. Operator can adjust the direction of each camera by mechanical attachments, and can also adjust color balance of each camera and so on by software.View full abstractDownload PDF (738K) -
Keiichiro KAGAWA, Eiji Tanaka, Kenji Yamada, Jun TANIDAArticle type: Article
Session ID: 3DIT2010-71/IDY2010-
Published: October 15, 2010
Released on J-STAGE: September 21, 2017
CONFERENCE PROCEEDINGS FREE ACCESSTOMBO (Thin Observation Module by Bound Optics) is the smallest multi-camera composed of a single image sensor and a lens array. Its performance as a three-dimensional camera and applications are mentioned.View full abstractDownload PDF (821K) -
Yoshihiko KUROKIArticle type: Article
Session ID: 3DIT2010-72/IDY2010-
Published: October 15, 2010
Released on J-STAGE: September 21, 2017
CONFERENCE PROCEEDINGS FREE ACCESSWe have developed the 240fps Single Lens 3D Camera which realized natural and smooth 3D motion images.View full abstractDownload PDF (830K) -
Tetsuya HAYASHIDA, Jun YONAI, Toshiki ARAI, Hirotaka MARUYAMA, Yasuhir ...Article type: Article
Session ID: 3DIT2010-73/IDY2010-
Published: October 15, 2010
Released on J-STAGE: September 21, 2017
CONFERENCE PROCEEDINGS FREE ACCESSRecently, demands for stereoscopic shooting technology increases in movie and TV industries. So far, the many stereoscopic cameras have been developed, but there is no camera which can take ultrahigh speed stereoscopic images. Therefore, we configured ultrahigh speed stereoscopic camera combining two ultrahigh speed cameras. To avoid the limitations from the size of cameras and lens, we employed the configuration using beam splitter. Entering trigger signal in both cameras at the same time enables synchronized shooting. This configuration enables the ultrahigh speed stereoscopic shooting. This paper mainly reports on the camera configuration and shooting experiments.View full abstractDownload PDF (1069K) -
Eri Ueda, Tetsuya Kawamoto, Kanzo Nakamura, Toshiaki FUJIArticle type: Article
Session ID: 3DIT2010-74/IDY2010-
Published: October 15, 2010
Released on J-STAGE: September 21, 2017
CONFERENCE PROCEEDINGS FREE ACCESSAs 3D-TV has been released for home TV, supply of 3D contents has become a key to the 3D market expansion. Chukyo TV, in collaboration with Tokyo Institute of Technology, Keio University, Nagoya University, and Fukui University, received a commissioned research from the National Institute of Information and Communication, entitled "Technology of the core elements of three-dimensional images Telecommunications". The aim of this project is to reduce the cost of production process that is required for "Multi-view picture shooting", "View interpolation" and "Free Viewpoint Video generation". In this paper, we introduce some of our studies, especially focusing on a 3D stereoscopic video production method which utilizes a disparity map and a 2D/3D conversion technique. These techniques can be utilized for creating stereoscopic videos for 3D-TV.View full abstractDownload PDF (1027K) -
Hirotaka NAKAYAMA, Tomoyoshi ITOArticle type: Article
Session ID: 3DIT2010-75/IDY2010-
Published: October 15, 2010
Released on J-STAGE: September 21, 2017
CONFERENCE PROCEEDINGS FREE ACCESSWe developed algorithm to record plural projection patterns in one volume. Projection patterns by binary pixels limit the possibility of recorded patterns. However, our method uses projection patterns by pixels with gradation, which can have no limitation. As for this technique, application to the three-dimensional crystal glass art made by a laser is considerable. The colorization is also possible.View full abstractDownload PDF (974K) -
Keishi HATTORI, Kunihiro ASADA, Makoto IKEDAArticle type: Article
Session ID: 3DIT2010-76/IDY2010-
Published: October 15, 2010
Released on J-STAGE: September 21, 2017
CONFERENCE PROCEEDINGS FREE ACCESSIn this paper I present an algorithm to implement real-time 3D mesh generation in hardware. It specializes for a 3D capturing system based on the light section method. By constructing a 3D scanning system with integrated mesh generation, I was able to come up with a much more efficient way of reconstructing the surface from a point cloud. Also because the system can capture 3D in real-time, I will use the range map sequence to balance speed and precision.View full abstractDownload PDF (508K) -
Article type: Appendix
Pages App1-
Published: October 15, 2010
Released on J-STAGE: September 21, 2017
CONFERENCE PROCEEDINGS FREE ACCESSDownload PDF (109K) -
Article type: Appendix
Pages App2-
Published: October 15, 2010
Released on J-STAGE: September 21, 2017
CONFERENCE PROCEEDINGS FREE ACCESSDownload PDF (109K) -
Article type: Appendix
Pages App3-
Published: October 15, 2010
Released on J-STAGE: September 21, 2017
CONFERENCE PROCEEDINGS FREE ACCESSDownload PDF (109K)
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