ITE Technical Report
Online ISSN : 2424-1970
Print ISSN : 1342-6893
ISSN-L : 1342-6893
Search
Advanced search
OR
Browse
Search
37.24
Displaying 1-12 of 12 articles from this issue
Show all abstracts
    • |<
    • <
    • 1
    • >
    • >|
  • [title in Japanese]
    Article type: Cover
    Pages Cover1-
    Published: June 03, 2013
    Released on J-STAGE: September 21, 2017
    DOIhttps://doi.org/10.11485/itetr.37.24.0_Cover1
    CONFERENCE PROCEEDINGS FREE ACCESS
    Download PDF (11K)
  • [title in Japanese]
    Article type: Index
    Pages Toc1-
    Published: June 03, 2013
    Released on J-STAGE: September 21, 2017
    DOIhttps://doi.org/10.11485/itetr.37.24.0_Toc1
    CONFERENCE PROCEEDINGS FREE ACCESS
    Download PDF (35K)
  • Increase in accommodation range induced by super multi-view displays
    Haruki MIZUSHINA, Junya NAKAMURA, Yasuhiro TAKAKI, Hiroshi ANDO
    Article type: Article
    Session ID: 3DIT2013-25/IDY2013-
    Published: June 03, 2013
    Released on J-STAGE: September 21, 2017
    DOIhttps://doi.org/10.11485/itetr.37.24.0_1
    CONFERENCE PROCEEDINGS FREE ACCESS
    Show abstractHide abstract
    Conventional three-dimensional (3D) displays have a conflict between accommodation and vergence stimuli. This accommodation-vergence conflict is one of the possible causes underlying visual fatigue and discomfort while viewing 3D displays. The super multi-view (SMV) display technique has been proposed to reduce the conflict. In this study we examined whether SMV displays can reduce the conflict by measuring accommodation and vergence responses simultaneously. The results show that the super multi-view display enhanced the range in which accommodation changed compared with the conventional two-view stereo display. As a result, the accommodation-vergence conflict can be solved by SMV displays.
    View full abstract
    Download PDF (4983K)
  • Frame Disparity Statistics for Subjective Stereoscopic Sensation Evaluation
    Satoshi TOYOSAWA, Takashi KAWAI
    Article type: Article
    Session ID: 3DIT2013-26/IDY2013-
    Published: June 03, 2013
    Released on J-STAGE: September 21, 2017
    DOIhttps://doi.org/10.11485/itetr.37.24.0_5
    CONFERENCE PROCEEDINGS FREE ACCESS
    Show abstractHide abstract
    The current study examines a various statistics obtained from pixel-level disparities in a given stereoscopic video frame in order to find indexes that would best represent subjective stereoscopic sensation. In the experiment, subjects rated 14 frames with a variety of disparity compositions. The experiment result suggests that composition of disparity within a frame would influence the stereoscopic sensation; hence, indexes should be selected accordingly. Specifically, minimum or difference between 95 and 5 percentile values would best describe sense of nearness under one peak composition. Similarly, for the nearness, maximum or 5 percentile value is considered suitable under multiple peak composition.
    View full abstract
    Download PDF (817K)
  • Accommodation Response Measurements and Retinal Image Evaluation for Horizontal-Parallax-Only Super Multi-View Display
    Junya NAKAMURA, Yasuhiro TAKAKI
    Article type: Article
    Session ID: 3DIT2013-27/IDY2013-
    Published: June 03, 2013
    Released on J-STAGE: September 21, 2017
    DOIhttps://doi.org/10.11485/itetr.37.24.0_9
    CONFERENCE PROCEEDINGS FREE ACCESS
    Show abstractHide abstract
    Super multi-view (SMV) displays have been developed to solve the vergence-accommodation conflict. Because the SMV displays developed so far were the horizontal-parallax-only (HPO) type, accommodation responses to the SMV displays were measured mostly for three-dimensional (3D) images containing distinctive vertical edges. In this study, we investigated the influences of the edge properties contained in 3D images upon the accommodation responses evoked by the HPO-SMV display. Two test images were used for the accommodation measurements: a "Maltese cross", which contains several sharp edges, and a standard test image of "Lena", which contains various types of edges. We found that the HPO-SMV display still evoked the accommodation responses when "Lena" was displayed, although the amounts of the evoked accommodation were smaller than those for the "Maltese cross", depending on where viewers gazed. We also investigated the blur in retinal images according to the accommodation responses by capturing retinal images.
    View full abstract
    Download PDF (11093K)
  • Evaluation visual comfort in observing slide show by no disparity realistic images
    Nobutaka NATSUI, Hisaki NATE, Kazuo ISHIKAWA, Yutaka ICHIHARA, Nobuyuk ...
    Article type: Article
    Session ID: 3DIT2013-28/IDY2013-
    Published: June 03, 2013
    Released on J-STAGE: September 21, 2017
    DOIhttps://doi.org/10.11485/itetr.37.24.0_13
    CONFERENCE PROCEEDINGS FREE ACCESS
    Show abstractHide abstract
    We evaluated stereoscopic image, no disparity realistic image and 2D image from a sense of subjectivity evaluation and visual fatigue. No disparity realistic image is consisted of two images (right and left image). Right image is created by shifting all pixels in left image same amount. Consequently, there are no disparities in all area of no disparity realistic image. These results indicated that no disparity realistic image let observer feel high presence and an observer' s visual fatigue was low.
    View full abstract
    Download PDF (510K)
  • Conditions for designing multi-view 3D displays for high-quality reproduction of perceived glossiness
    Yuichi SAKANO, Hiroshi ANDO
    Article type: Article
    Session ID: 3DIT2013-29/IDY2013-
    Published: June 03, 2013
    Released on J-STAGE: September 21, 2017
    DOIhttps://doi.org/10.11485/itetr.37.24.0_17
    CONFERENCE PROCEEDINGS FREE ACCESS
    Show abstractHide abstract
    It would be very important to determine system requirements of multi-view 3D displays for accurate reproduction of appearance. However, it is generally difficult to determine the requirements because it is difficult to change parameters of 3D displays systematically. We overcame this difficulty by developing a simulator of a multi-view 3D display that enabled us to change the viewpoint interval and the magnitude of crosstalk, and by using this simulator, we psychophysically investigated the conditions in which perceived glossiness is accurately reproduced. We found that glossiness reproduction is best when the viewpoint interval is small and there is a small, but not too small, amount of crosstalk.
    View full abstract
    Download PDF (6701K)
  • Edge-based DFD (Depth-fused 3-D) display
    Tomoki SOUMIYA, Hiroshi SONOBE, Atsuhiro TSUNAKAWA, Hirotsugu YAMAMOTO ...
    Article type: Article
    Session ID: 3DIT2013-30/IDY2013-
    Published: June 03, 2013
    Released on J-STAGE: September 21, 2017
    DOIhttps://doi.org/10.11485/itetr.37.24.0_21
    CONFERENCE PROCEEDINGS FREE ACCESS
    Show abstractHide abstract
    We propose a new DFD (Depth-fused 3-D) display, called Edge-based DFD, whose front or rear image is only the edge part of the desired 3D image. Conventional DFD display is composed of front and rear displays which enables a depth perception by changing luminance ratio in the two overlapped images. In edge-based DFD display, perceived depth can be successfully obtained only by changing edge luminesce.
    View full abstract
    Download PDF (9275K)
  • Super multi-view 3D video system and demonstration experiments
    Masahiro KAWAKITA, Shoichiro IAWASAWA, Roberto LOPEZ-GULLIVER, Mao MAK ...
    Article type: Article
    Session ID: 3DIT2013-31/IDY2013-
    Published: June 03, 2013
    Released on J-STAGE: September 21, 2017
    DOIhttps://doi.org/10.11485/itetr.37.24.0_25
    CONFERENCE PROCEEDINGS FREE ACCESS
    Show abstractHide abstract
    We investigate highly realistic communication systems using a super-multi-view three-dimensional (3D) video system. We propose and develop a glasses-free 200-view 3D display using almost 200 high-definition (HD) projector units to reconstruct such natural life-size 3D moving objects as cars and humans. We are also developing a 3D capturing system with small HD camera units to capture real moving objects. We started a social demonstration experiments for the highly realistic communication system by introducing the multi-view 3D video systems in a new development area north of the Osaka station, called the UMEKITA area, in April 2013.
    View full abstract
    Download PDF (9927K)
  • [title in Japanese]
    Article type: Appendix
    Pages App1-
    Published: June 03, 2013
    Released on J-STAGE: September 21, 2017
    DOIhttps://doi.org/10.11485/itetr.37.24.0_App1
    CONFERENCE PROCEEDINGS FREE ACCESS
    Download PDF (80K)
  • [title in Japanese]
    Article type: Appendix
    Pages App2-
    Published: June 03, 2013
    Released on J-STAGE: September 21, 2017
    DOIhttps://doi.org/10.11485/itetr.37.24.0_App2
    CONFERENCE PROCEEDINGS FREE ACCESS
    Download PDF (80K)
  • [title in Japanese]
    Article type: Appendix
    Pages App3-
    Published: June 03, 2013
    Released on J-STAGE: September 21, 2017
    DOIhttps://doi.org/10.11485/itetr.37.24.0_App3
    CONFERENCE PROCEEDINGS FREE ACCESS
    Download PDF (80K)
    • |<
    • <
    • 1
    • >
    • >|
feedback
 Top