ITE Technical Report
Online ISSN : 2424-1970
Print ISSN : 1342-6893
ISSN-L : 1342-6893
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39.18
Displaying 1-12 of 12 articles from this issue
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  • [title in Japanese]
    Article type: Cover
    Pages Cover1-
    Published: May 22, 2015
    Released on J-STAGE: September 22, 2017
    DOIhttps://doi.org/10.11485/itetr.39.18.0_Cover1
    CONFERENCE PROCEEDINGS FREE ACCESS
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  • [title in Japanese]
    Article type: Index
    Pages Toc1-
    Published: May 22, 2015
    Released on J-STAGE: September 22, 2017
    DOIhttps://doi.org/10.11485/itetr.39.18.0_Toc1
    CONFERENCE PROCEEDINGS FREE ACCESS
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  • A Trial Study of Pedestrian Traffic Risk Reduction by Sharing Driver's State Among Traffic Participants
    Genta Nakanishi, Yasunori Kinosada, Akira Utsumi, Masahiro Tada
    Article type: Article
    Session ID: ME2015-64/AIT2015-91
    Published: May 22, 2015
    Released on J-STAGE: September 22, 2017
    DOIhttps://doi.org/10.11485/itetr.39.18.0_1
    CONFERENCE PROCEEDINGS FREE ACCESS
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    We have been developing a method to reduce traffic risk by sharing driver's state (e.g. driver's attention level, gaze direction) among traffic participants. In order to confirm effectiveness of our method, we performed an experiment with seven participants. Each participant is required to cross a road as a pedestrian while vehicle is approaching. In our experiment, we share drivers' state using blue lamp installed on the front grille of vehicle that illuminates when driver's state is in a bad condition. As a result of our experiment, in lamp-illuminated condition, 5 participants gave up crossing earlier than in no-illuminated condition (0.82 seconds earlier in average). This means that our method could motivate pedestrians to change their crossing behavior safer.
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  • Photonetarium : Interactive Photo Collection Viewer Based on Star Metaphor
    Shinya TODA, Yoshinobu TONOMURA
    Article type: Article
    Session ID: ME2015-65/AIT2015-92
    Published: May 22, 2015
    Released on J-STAGE: September 22, 2017
    DOIhttps://doi.org/10.11485/itetr.39.18.0_5
    CONFERENCE PROCEEDINGS FREE ACCESS
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    This report proposes an interactive photo collection viewer called "Photonetarium" which represents user's all stock photos based on a star metaphor. The purpose of the system is to show huge amount of stock photos in a way we see stars in the night sky. Furthermore, visualizing that relations between photos as a constellation by linking them helps us remember and notice specific group of photos.
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  • Improvement for a frame interpolation technique based on a subdivision of triangular patches
    Shuhei SATO, Toshiyuki YOSHIDA, Yutaka NAKANO
    Article type: Article
    Session ID: ME2015-66/AIT2015-93
    Published: May 22, 2015
    Released on J-STAGE: September 22, 2017
    DOIhttps://doi.org/10.11485/itetr.39.18.0_9
    CONFERENCE PROCEEDINGS FREE ACCESS
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    The authors have proposed a frame interpolation technique which adaptively selects either of block-matching-based or warping-based interpolation techniques for triangular patches generated by a feature point tracking and Delaunay triangulation. However, the accuracy of this technique degrades in the case that a single triangular patch includes multiple objects with mutually different motions. This paper tries to overcome this problem by detecting triangular patches that possibly include multiple motions and by subdividing them into smaller patches along with object boundaries. The experimental results indicate that the proposed technique improves the accuracy of interpolation in terms of not only the PSNR but also visual aspect.
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  • A New Display World Created by High-resolution Organic Light Emitting Diode Display : Natural3D Expression based on 2D Image
    Yuichi Yanagisawa, Hisao Ikeda, Daisuke Kubota, Yoshiharu Hirakata, Sh ...
    Article type: Article
    Session ID: ME2015-67/AIT2015-94
    Published: May 22, 2015
    Released on J-STAGE: September 22, 2017
    DOIhttps://doi.org/10.11485/itetr.39.18.0_13
    CONFERENCE PROCEEDINGS FREE ACCESS
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    We report a stereoscopic effect obtained from a two-dimensional image without using binocular parallax, which we call "natural3D" (n3D). Unlike a parallax-using three-dimensional display system, n3D causes less tiredness, and is free from resolution decrease by half due to image division and viewing position dependence. To provide comfortable use of a display with such effects, first we examined conditions for causing n3D through statistical analysis of sensory evaluation, and then performed quantitative evaluation based on physiological response to a display causing n3D. These experiments revealed that n3D can be effectively obtained with the use of characteristics of an organic electroluminescence (EL) display such as high contrast and flexibility. A new display method utilizing features of organic EL is expected to be developed.
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  • CatchVoice : Voice Memoing, and Sharing Using Smartphones while Walking
    Satoshi NOMURA, Yoshinobu TONOMURA
    Article type: Article
    Session ID: ME2015-68/AIT2015-95
    Published: May 22, 2015
    Released on J-STAGE: September 22, 2017
    DOIhttps://doi.org/10.11485/itetr.39.18.0_21
    CONFERENCE PROCEEDINGS FREE ACCESS
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    This report proposes a system called "CatchVoice", which enables a user to record his/her murmuring as voice memos while walking using a smartphone without looking down at its screen and also to share it with others, if he/she will, if the topic is related the area. The system software is automatically activated when the user is assumed ready to speak from his/her posture using several sensors equipped in smartphones. The user also catches other's voices shared in the system when he/she enters the area where the voices are recorded.
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  • A Development of Real-time Safety Advice System Using Wearable Sensor On Driving Simulator
    Hikaru KOSAKADA, Kouki HIGUCHI, Akira UTSUMI, Masahiro TADA
    Article type: Article
    Session ID: ME2015-69/AIT2015-96
    Published: May 22, 2015
    Released on J-STAGE: September 22, 2017
    DOIhttps://doi.org/10.11485/itetr.39.18.0_25
    CONFERENCE PROCEEDINGS FREE ACCESS
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    In this study, we have developed real-time safety advice system using wearable sensor on driving simulator. The most frequent causes of traffic accidents in Japan is drivers' error. However the existing evaluation systems focused on driving-device data (e.g. accelerator, brake, steering wheel) only for evaluating driver's skill. Therefore, those systems did not consider driver's motion. In this paper, we propose a new evaluation system of driving skill based on driver's motion using wearable sensor. Our system measures driver's head motion and estimates driver's safety scanning behavior. By using estimated results, this system gives safety advice to the driver based on the evaluation result of his/her driving behavior from the view point of active safety in real time. Since our system works on driving simulator, we can evaluate driver's skill on the road under construction or the distant road.
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  • An analysis of elderly drivers' characteristic behavior using wearable sensors
    Yuhei Kawaguchi, Masahiro Tada, Kazumi Renge
    Article type: Article
    Session ID: ME2015-70/AIT2015-97
    Published: May 22, 2015
    Released on J-STAGE: September 22, 2017
    DOIhttps://doi.org/10.11485/itetr.39.18.0_29
    CONFERENCE PROCEEDINGS FREE ACCESS
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    In this paper, to know the cause of increasing elderly drivers' accident, we performed an experiment with 47 elderlies using driving school vehicle. In our experiment, we measured driver's scanning behavior for checking safety and vehicle speed at preset five intersections using wearable sensors together with GPS. By analyzing the measured data based on driving instructors' knowledge, we evaluated his/her safety driving skill at the intersections from the viewpoint of active safety. The result shows that elderly drivers do not always behave riskily; they carefully scanned around for checking safety when crossing broad roads. In contrast, our result also found out that elderly drivers tended to not carefully scan around when crossing narrow streets such as streets in residential area. This could lead to increase traffic accident risk.
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  • [title in Japanese]
    Article type: Appendix
    Pages App1-
    Published: May 22, 2015
    Released on J-STAGE: September 22, 2017
    DOIhttps://doi.org/10.11485/itetr.39.18.0_App1
    CONFERENCE PROCEEDINGS FREE ACCESS
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  • [title in Japanese]
    Article type: Appendix
    Pages App2-
    Published: May 22, 2015
    Released on J-STAGE: September 22, 2017
    DOIhttps://doi.org/10.11485/itetr.39.18.0_App2
    CONFERENCE PROCEEDINGS FREE ACCESS
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  • [title in Japanese]
    Article type: Appendix
    Pages App3-
    Published: May 22, 2015
    Released on J-STAGE: September 22, 2017
    DOIhttps://doi.org/10.11485/itetr.39.18.0_App3
    CONFERENCE PROCEEDINGS FREE ACCESS
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