ITE Technical Report
Online ISSN : 2433-0914
Print ISSN : 0386-4227
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Volume 16, Issue 49
Displaying 1-9 of 9 articles from this issue
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  • [title in Japanese]
    Article type: Cover
    1992 Volume 16 Issue 49 Pages Cover1-
    Published: July 31, 1992
    Released on J-STAGE: October 06, 2017
    DOIhttps://doi.org/10.11485/tvtr.16.49_Cover1
    RESEARCH REPORT / TECHNICAL REPORT FREE ACCESS
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  • [title in Japanese]
    Article type: Index
    1992 Volume 16 Issue 49 Pages Toc1-
    Published: July 31, 1992
    Released on J-STAGE: October 06, 2017
    DOIhttps://doi.org/10.11485/tvtr.16.49_Toc1
    RESEARCH REPORT / TECHNICAL REPORT FREE ACCESS
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  • STUDIES OF VISION AND HEARING IN FUTURE
    Kenji HIWATASHI
    Article type: Article
    1992 Volume 16 Issue 49 Pages 1-5
    Published: July 31, 1992
    Released on J-STAGE: October 06, 2017
    DOIhttps://doi.org/10.11485/tvtr.16.49_1
    RESEARCH REPORT / TECHNICAL REPORT FREE ACCESS
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    This paver concerns with general discussions for studies of the human vision and healing by engineers. Basic experimental researches are traditionally psychology and phisiology, but theoretical approach for vision and hearing has to be done in standpoint of the information engineeing. Engineerings related deeply to vision are illumination, image, human factor and information. In these area, engineers have to be made much of human sensory activities.
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  • A model of Saccadic eye movement caused by egocentric image change
    Isamu Yoroizawa
    Article type: Article
    1992 Volume 16 Issue 49 Pages 7-12
    Published: July 31, 1992
    Released on J-STAGE: October 06, 2017
    DOIhttps://doi.org/10.11485/tvtr.16.49_7
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    Gaze point prediction can be applicable to the various engineering fields such as telecommunication, human-computer interaction, and traffic security. A model of saccadic eye movement is proposed aiming to predict gaze point in this paper. The gaze point is computed from the difference of successive egocentric images which are structured in the frontal eye field. The validity of the model was confirmed through the computer simulation tests.
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  • Eye Movement Analysis on Stereoscopic Perception by Dynamic Color Random-Dot Stereogram
    Hideo Kawai, Takashi Tanaka, Kozo Okazaki, Shinichi Tamura, Kazutaka K ...
    Article type: Article
    1992 Volume 16 Issue 49 Pages 13-18
    Published: July 31, 1992
    Released on J-STAGE: October 06, 2017
    DOIhttps://doi.org/10.11485/tvtr.16.49_13
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    Up to now, we had thought vergent, eye movement (vergence) was the main cause for stereopsis. But we found vergence is observed after stereoscopic perception rather than when searching corresponding points. Hereby, we guess the stereoscopic perceptual process is accomplished at first in the cerebrum, and then the vergence is evoked in order to maintain the stereoscopic perception. In this research. we performed a stereoscopic perceptual analysis by using dynamic color r__-andom-d__-ot s__-tereograms (RDSs).
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  • Effect of shading on monocular Stereopsis
    JUN MURAYAMA, TOSHIO INUI, HIRAYUKI SATO, NOBUYUKI ISSIKI
    Article type: Article
    1992 Volume 16 Issue 49 Pages 19-24
    Published: July 31, 1992
    Released on J-STAGE: October 06, 2017
    DOIhttps://doi.org/10.11485/tvtr.16.49_19
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    In the last decade,problems of so called 'shape-from-X' were widely investigated theoretically. In the present paper, we examined the effects of shading on monocular stereopsis (i.e., shape from shading). In Experiment I, subjects showed the overestimation of the surface curvature under the condition in which shade information was available, while they showed the underestimation under the non shade condition. In Experiment II-V, several important factors were examined; effect of shade, perceived Position of the light source and vatage point.
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  • The dynamics Of the visual System in combining conflicting KDE and binocular Stereopsis cues
    Ken'ya UOMORI, Shin'ya NISHIDA
    Article type: Article
    1992 Volume 16 Issue 49 Pages 25-30
    Published: July 31, 1992
    Released on J-STAGE: October 06, 2017
    DOIhttps://doi.org/10.11485/tvtr.16.49_25
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    To investigate the dynamics of the visual system in combining multiple depth cues, we measured temporal change in the perceived 3D shape of a random-dot stimulus with conflicting KDE (Kinetic Depth Effect) and binocular stereopsis cues. The results showed that KDE shape perception dominated for the first few seconds, then gradually changed into stereo shape perception. The effects of various pre-adaptation stimuli suggested that the temporal change of perceived shape resulted from the self-adaptation of the KDE mechanism that occurred at the levels of motion and relative motion detection, rather than at the higher shape reconstruction stage.
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  • Evaluation of Partial Masking on Face
    Gen SUZUKI, Takashi KOUNO, Atushi OKADA, Yukio SUKEGAWA
    Article type: Article
    1992 Volume 16 Issue 49 Pages 31-36
    Published: July 31, 1992
    Released on J-STAGE: October 06, 2017
    DOIhttps://doi.org/10.11485/tvtr.16.49_31
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    This paper describes the experimental result of Psychological evaluation of Partial masking on facial expression. Effects of place and size of artificial mask patterns are evaluated using computer and video systems. Obstructive scores of masks is the following order: both eye > Single eye = > mouth > nose. Masks on single eye portion show almost simillar obstructive score (MOS=3).
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  • [title in Japanese]
    Article type: Appendix
    1992 Volume 16 Issue 49 Pages App1-
    Published: July 31, 1992
    Released on J-STAGE: October 06, 2017
    DOIhttps://doi.org/10.11485/tvtr.16.49_App1
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