ITE Technical Report
Online ISSN : 2424-1970
Print ISSN : 1342-6893
ISSN-L : 1342-6893
Current issue
Showing 1-14 articles out of 14 articles from the selected issue
  • Type: Cover
    Pages Cover1-
    Published: March 01, 2016
    Released: September 22, 2017
    CONFERENCE PROCEEDINGS FREE ACCESS
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  • Type: Index
    Pages Toc1-
    Published: March 01, 2016
    Released: September 22, 2017
    CONFERENCE PROCEEDINGS FREE ACCESS
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  • Ryoko YAMADA, Yoshinori INABA, Takahiro IIDA, Yuiko SAKUTA, Shigeru AK ...
    Type: Article
    Session ID: HI2016-42/3DIT2016-1
    Published: March 01, 2016
    Released: September 22, 2017
    CONFERENCE PROCEEDINGS FREE ACCESS
    We aimed to reveal the effects of facial impression manipulations on face recognition in terms of recognition performance and eye-movement pattern. At first, the recognition experiments were conducted using face images: Their facial impressions have been manipulated in positive and negative directions. Then, eye movement during encoding and recognizing those face images was analyzed. As the result, it is suggested the manipulated facial impression strengthened by the way of the negative implication affect the collation process of the faces.
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  • Hideho SAKAGUCHI, Akira UTSUMI, Kenji SUSAMI, Tadahisa KONDO, Takeshi ...
    Type: Article
    Session ID: HI2016-43/3DIT2016-2
    Published: March 01, 2016
    Released: September 22, 2017
    CONFERENCE PROCEEDINGS FREE ACCESS
    To achieve a proper support of human tasks such as vehicle driving using attention and awareness control, in addition to a method of attention guidance, the detection of awareness occurrence becomes significant, this paper, we describe a method of awareness detection using the relation between target motion and eye movement. We conducted experiments using a character search task with attention control using rectangle frame overlays. Experimental results show the effectiveness of both attention control using rectangle frames and awareness detection based on eye movement.
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  • Yuji KANOH, Yuma NAKAI, Shohei OHTANI, Hiroko TANAKA, Kumi SHIRAI, Tak ...
    Type: Article
    Session ID: HI2016-44/3DIT2016-3
    Published: March 01, 2016
    Released: September 22, 2017
    CONFERENCE PROCEEDINGS FREE ACCESS
    It is known that amblyopia could be improved by sight training such as visual attention concentration tasks. However, the effectiveness of sight training could not evaluate objectively because amblyopia is not fully understood so far. Since visual attention influences on fixation eye movements, which are involuntary miniature movements of the eye, there is a possibility that the properties of fixation eye movements would change by sight training. In order to investigate the characteristics of fixation eye movements of amblyopic eye, we carried out an experiment which maintain visual fixation during focal attention tasks. The results of analyses of fixation eye movements suggest that microsaccade rate and microsaccade amplitude are both higher than those of normal eyes. Moreover, frequency analysis of drift eye movements indicate that the amplitude of fluctuation in low frequency component of amblyopic eyes is larger than that of normal eyes.
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  • Hiroki NAMIKAWA, Ryota OKAMOTO, Haruna SHIBATA, Takeshi KOHAMA, Hisash ...
    Type: Article
    Session ID: HI2016-45/3DIT2016-4
    Published: March 01, 2016
    Released: September 22, 2017
    CONFERENCE PROCEEDINGS FREE ACCESS
    In the measurement of the functional near-infrared spectroscopy (fNIRS), the difference between resting state and task-performing state is often evaluated as an index of brain activities. However, since the definition of resting-state is ambiguous, the experimental conditions of resting state are not controlled, and this makes individual differences of experimental data enlarged. In this study, we investigate the condition to be recovered to resting state earlier during a recovery process after brain activation. We compared the brain activity of prefrontal cortex (PFC) while gazing at a low-passed dynamic random-dot pattern (DRD) or a fixation crosshair after performing a 3-back task. The results suggest that the averaged activities of PFC in the DRD condition were significantly lower than the FT condition.
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  • Hiroki YOSHINO, Takeshi KOHAMA
    Type: Article
    Session ID: HI2016-46/3DIT2016-5
    Published: March 01, 2016
    Released: September 22, 2017
    CONFERENCE PROCEEDINGS FREE ACCESS
    In the processes of gaze shifts on a visual object, cooperative behaviors of bottom-up attention and top-down attention are concerned. Gaze shifts during free-viewing without a specific purpose depend on the saliency of visual information and show object selections in accordance with visual contexts. This property suggests that there might be a medial processes between bottom-up and top-down attention. In this study, a gaze prediction model was proposed in order to understand a mechanism of gaze shifts in free-viewing. We extended a previous model which considers conditional provability to have a weighting based on a principal component analysis of scan-path data while viewing natural images freely, and evaluated prediction accuracy of gaze position in free-viewing. Simulation results indicate that the accuracy of prediction of proposed model is better than that of previous model, which suggest the ability of the model to provide gaze prediction considering individual differences.
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  • Yuta MAEDA, Akihiro MASAOKA, Takeshi KOHAMA
    Type: Article
    Session ID: HI2016-47/3DIT2016-6
    Published: March 01, 2016
    Released: September 22, 2017
    CONFERENCE PROCEEDINGS FREE ACCESS
    In this study, we proposed a mathematical model of neuron network which concerns the control of visual attention, in order to understand the information processing of the visual system during visual search. Since bottom-up and top-down attention cooperatively perform during visual search tasks, the proposed model was constructed to have a network of bottom-up attention and integrate bottom-up and top-down processes to select a visual target based on the previous model which is able to replicate behaviors of top-down attention. Simulation results show that our model replicates the physiological evidence of neuron activities and the characteristic of eye movements during visual search tasks.
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  • Takuya TANIZAWA, Yuta INOUE, Akira UTSUMI, Kenji SUSAMI, Tadahisa KOND ...
    Type: Article
    Session ID: HI2016-48/3DIT2016-7
    Published: March 01, 2016
    Released: September 22, 2017
    CONFERENCE PROCEEDINGS FREE ACCESS
    We examined attention control effect of visual stimulus presentation to the peripheral vision with small LED arrays with purpose of supporting human attention behavior such as automobile driving. In experiments a target stimulus was displayed on the front screen at a certain interval while a subject was operate a driving simulator, and the subject responds with a button when he/she detected the target. Experimental results show that response rates became higher and response speed became faster when subject has understood the relation between the flow directions of presented visual stimuli and displayed target positions. These results suggest the attention control effect of the presented flow stimuli to peripheral vision displayed with LED arrays.
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  • Yuichiro KUME, Xiaoheng DONG
    Type: Article
    Session ID: HI2016-49/3DIT2016-8
    Published: March 01, 2016
    Released: September 22, 2017
    CONFERENCE PROCEEDINGS FREE ACCESS
    Human respiration is one of aito-kineses, and can be used for human interfaces. It has been used for wind instruments and breath pressure switches available commercially. These devices restrict mouth movements, and hygienic issues have been remained. In this study, a small force sensor, load cell, placed in front of mouth, has been employed to measure expiratory flow pressure for a non-contact input interface. Fundamental properties of the device were studied to discriminate expiratory flow from ambient air flows and the relationship between expiratory flow and input pressure were quantitatively measured. Expiratory flow pressures characterized with specific pronunciations and a feasibility for phonetic training was investigated.
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  • Makoto TADENUMA, Toshiya MORITA, Kazuteru KOMINE
    Type: Article
    Session ID: HI2016-50/3DIT2016-9
    Published: March 01, 2016
    Released: September 22, 2017
    CONFERENCE PROCEEDINGS FREE ACCESS
    The authors has developed methods to estimate the unpleasantness degree of shaking images which should cause a certain harmful influence on viewers' body. However, it was found that the estimation error of the unpleasantness degree could not be reduced to a level low enough when the unpleasantness would be directly estimated with the physical characteristics of the shaking images. Therefore we introduced a new psychological index named "cognition degree of shakiness"; the cognition occurs previous to the unpleasantness, and we aimed to precisely estimate this index at first. We carried out experiments to investigate the cognition degree of shaking images with variously different characteristics, and we found out a fundamental relationship between the physical characteristics of shaking images and the cognition degree of shakiness.
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  • Type: Appendix
    Pages App1-
    Published: March 01, 2016
    Released: September 22, 2017
    CONFERENCE PROCEEDINGS FREE ACCESS
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  • Type: Appendix
    Pages App2-
    Published: March 01, 2016
    Released: September 22, 2017
    CONFERENCE PROCEEDINGS FREE ACCESS
    Download PDF (79K)
  • Type: Appendix
    Pages App3-
    Published: March 01, 2016
    Released: September 22, 2017
    CONFERENCE PROCEEDINGS FREE ACCESS
    Download PDF (79K)
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