ITE Technical Report
Online ISSN : 2424-1970
Print ISSN : 1342-6893
ISSN-L : 1342-6893
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40.10 Three-Dimensional Image Technology(3DIT)/Human Information(HI)
Displaying 1-13 of 13 articles from this issue
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  • [title in Japanese]
    Article type: Cover
    Pages Cover1-
    Published: March 02, 2016
    Released on J-STAGE: September 22, 2017
    DOIhttps://doi.org/10.11485/itetr.40.10.0_Cover1
    CONFERENCE PROCEEDINGS FREE ACCESS
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  • [title in Japanese]
    Article type: Index
    Pages Toc1-
    Published: March 02, 2016
    Released on J-STAGE: September 22, 2017
    DOIhttps://doi.org/10.11485/itetr.40.10.0_Toc1
    CONFERENCE PROCEEDINGS FREE ACCESS
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  • Introduction of eyetracking feature to maxwellian view system for visual support using hologram
    Yusuke ITO, Yasuhiro TAKAKI
    Article type: Article
    Session ID: 3DIT2016-10/HI2016-5
    Published: March 02, 2016
    Released on J-STAGE: September 22, 2017
    DOIhttps://doi.org/10.11485/itetr.40.10.0_1
    CONFERENCE PROCEEDINGS FREE ACCESS
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    In this study, we propose a method of using a computer generated hologram is a three-dimensional display technology, to achieve a flexible maxwellian view system that can accommodate the movement of the eyes of the user. The proposed method, by the hologram calculated using the position of the eyes of the user, it is possible to move the focal point electronically in response to the eye position. Therefore, to realize the maxwellian view experimental system using a hologram introducing eyetracking, it confirmed the effectiveness.
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  • High-Speed Holographic Printer System with Movable-type Colinear Optical Head
    Tomoyasu SAIGO, Hideyoshi HORIMAI, Ryo TAGUCHI, Taizo UMEZAKI
    Article type: Article
    Session ID: 3DIT2016-11/HI2016-5
    Published: March 02, 2016
    Released on J-STAGE: September 22, 2017
    DOIhttps://doi.org/10.11485/itetr.40.10.0_5
    CONFERENCE PROCEEDINGS FREE ACCESS
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    High speed holographic printer with colinear optics is developed. This printer is able to create the transparent type volume hologram(photo-polymer) by 2[kHz] pulsed laser, which laser is launched from 240[mm/s] moving optical head. Current printing area is 300[mm]×300[mm], and this moving head holographic printing technology can be applied large area printing with roll material.
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  • Effect of visually induced self-motion on walking movement of a healthy person
    Ryouma Sato, [in Japanese], [in Japanese], Shigehito Tanahashi
    Article type: Article
    Session ID: 3DIT2016-12/HI2016-5
    Published: March 02, 2016
    Released on J-STAGE: September 22, 2017
    DOIhttps://doi.org/10.11485/itetr.40.10.0_9
    CONFERENCE PROCEEDINGS FREE ACCESS
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    This study investigated the effect of visually induced self-motion on walking movement of a health person. When a healthy person walked on treadmill presenting an optical flow stimulus, we measured the change of the perceptual self-motion velocity and muscle activity. We indicated that the perceptual self-motion velocity was affected by the change the visual stimulus velocity. However, we did not confirm the change of muscle activity by the change the visual stimulus velocity.
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  • Prediction of Visually Induced Motion Sickness by Time-Delay Recurrent Neural Network
    Shin Tabeta, Tohru Kiryu, Shigehito Tanahashi
    Article type: Article
    Session ID: 3DIT2016-13/HI2016-5
    Published: March 02, 2016
    Released on J-STAGE: September 22, 2017
    DOIhttps://doi.org/10.11485/itetr.40.10.0_13
    CONFERENCE PROCEEDINGS FREE ACCESS
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    The study investigated prediction of VIMS with Biological Information by Artificial Neural Network (ANN). We obtained LF, HF and LF/HF ratio from electrocardiogram. Input data was LF, HF and LF/HF ratio, and training data was subjective rate of VIMS. ANN was trained input data and training data except for prediction observer data. Next we predicted VIMS by ANN from evaluation observer data. Similarly we predicted VIMS, so that all observers were evaluation data. A modeling method of Recurrent Neural Network, Time Delay Recurrent Neural Network and Time Delay Neural Network is proposed.
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  • Quantitative evaluations of operating accuracy by automultiscopic 3D images : Toward application of automultiscopic 3D images to remote operation of construction machines
    Yuichi SAKANO, Ichiro UMATA, Shoichiro IWASAWA, Makoto OKUI, Naomi INO ...
    Article type: Article
    Session ID: 3DIT2016-14/HI2016-5
    Published: March 02, 2016
    Released on J-STAGE: September 22, 2017
    DOIhttps://doi.org/10.11485/itetr.40.10.0_17
    CONFERENCE PROCEEDINGS FREE ACCESS
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    When removing hazardous objects after disasters, remote control of construction machines is used for the safety of the workers. To grasp the field situation, they watch 2D images. In the present study, we hypothesized that the use of automultiscopic 3D images in remote controlling of construction machines would improve the operating accuracy. By using an automultiscopic 3D display, we conducted an experiment in which many visitors to a commercial complex performed a task that is enjoyable but similar to remote controlling of a construction machine. The operating accuracy was higher when using automultiscopic 3D images compared with 2D images. In addition, when using 2D images, the accuracy was highest for male subjects of the estimated ages around thirties and declined markedly with age. In contrast, when using automultiscopic 3D images, effects of the estimated age and sex were limited.
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  • The difference in viewer's impressions between Multi-view 3D Video Images and Ultra High-resolution with Viewpoint Manipulation
    Mao Makino, Shunsuke Yoshida, Makoto Okui
    Article type: Article
    Session ID: 3DIT2016-15/HI2016-5
    Published: March 02, 2016
    Released on J-STAGE: September 22, 2017
    DOIhttps://doi.org/10.11485/itetr.40.10.0_21
    CONFERENCE PROCEEDINGS FREE ACCESS
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    Recent research showed higher resolution display facilitates depth sensation than lower resolution one, however we predict there is a major gap in the degree of the depth sensation between the higher resolution display and our glasses-free multi-view 3D display (REI). In this study, we report on the basic analysis of the comparison of viewers' impressions between 4K display and our 3D display with viewpoint manipulation.
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  • Accommodation measurements for full-parallax super multi-view display
    Junki TAKAGI, Ken ISHII, Yasuhiro TAKAKI
    Article type: Article
    Session ID: 3DIT2016-16/HI2016-5
    Published: March 02, 2016
    Released on J-STAGE: September 22, 2017
    DOIhttps://doi.org/10.11485/itetr.40.10.0_25
    CONFERENCE PROCEEDINGS FREE ACCESS
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    Super multi-view display has been studied as 3D display without visual fatigue which caused by conflict between convergence and accommodation. We have developed the scanning type super multi-view display which can change 3D display condition flexibly. Previously, we altered the scanning type super multi-view display to full parallax type super multi-view display. In this study, we displayed stereoscopic image by three stereoscopic condition, monocular horizontal parallax type, monocular full parallax type, and binocular horizontal parallax type and measured accommodation response of these conditions. Finally, we compared and evaluated the extent of depth of field by these stereoscopic conditions. As a result, it was found that there is significant difference the extent of depth of field between horizontal parallax type and full parallax type, binocular and monocular condition.
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  • Effects of 3D visual image rotation along pitch and yaw axes on symptoms of VIMS
    Hiroyasu UJIKE, Hiroshi WATANABE
    Article type: Article
    Session ID: 3DIT2016-17/HI2016-5
    Published: March 02, 2016
    Released on J-STAGE: September 22, 2017
    DOIhttps://doi.org/10.11485/itetr.40.10.0_29
    CONFERENCE PROCEEDINGS FREE ACCESS
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    Effects of visual rotations around three axes, such as yaw, roll, and pitch, on visually induced motion sickness has been reported. Among the rotations, the rotation around yaw axis can have relatively smaller effects on visually induced motion sickness (VIMS), and relatively larger effects on vection, because the rotation around yaw axis has smaller conflict between visual and vestibular information than those around pitch and roll axes. However, previous reports did not necessary show these effects. Then, in the present experiment, we try to examine the effects of visual rotation around yaw axis compared to that around pitch axis, by presenting clearly visual rotation around yaw and pitch axes by enhancing the immersive spatiality. As the results, however, we could not find out the main effects of display types (2D/3D) and of rotation axes (yaw and pitch) on subjective scores of VIMS and autonomic nervous activity (LF/HF). However, we find out the main effects of rotation axes on vection strength; the score was larger for the rotation around yaw axis. This result seems to be due to the effects of usage of 3D goggle and higher resolution (2K) images.
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  • [title in Japanese]
    Article type: Appendix
    Pages App1-
    Published: March 02, 2016
    Released on J-STAGE: September 22, 2017
    DOIhttps://doi.org/10.11485/itetr.40.10.0_App1
    CONFERENCE PROCEEDINGS FREE ACCESS
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  • [title in Japanese]
    Article type: Appendix
    Pages App2-
    Published: March 02, 2016
    Released on J-STAGE: September 22, 2017
    DOIhttps://doi.org/10.11485/itetr.40.10.0_App2
    CONFERENCE PROCEEDINGS FREE ACCESS
    Download PDF (79K)
  • [title in Japanese]
    Article type: Appendix
    Pages App3-
    Published: March 02, 2016
    Released on J-STAGE: September 22, 2017
    DOIhttps://doi.org/10.11485/itetr.40.10.0_App3
    CONFERENCE PROCEEDINGS FREE ACCESS
    Download PDF (79K)
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