Journal of Guangxi Normal University(Natural Science Edition) ›› 2018, Vol. 36 ›› Issue (2): 134-140.doi: 10.16088/j.issn.1001-6600.2018.02.019

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Relationship between the Information Entropy of Visual Sense and Vection Induced by Virtual Rotational Drum

WEI Miaoluan1,2,LIN Jiayin1,2,LIU Ru′e3,LUO Jie1,2*   

  1. 1.School of Engineering, Sun Yat-sen University,Guangzhou Guangdong 510006,China;
    2. Key Laboratory of Sensor Technology and Biomedical Instrument of Guangdong Province, Guangzhou Guangdong 510006,China;
    3. Equipment Department of Sun Yat-sen Memorial Hospital,Sun Yat-sen University,Guangzhou Guangdong 510006,China
  • Received:2017-04-19 Online:2018-05-10 Published:2018-07-18

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Abstract: As an emerging technology, virtual reality is expected to be used in the field of medicine, rehabilitation and so on. A series of psychological phenomena, which have been reported, are affected by the rotational direction and the FOV of virtual reality scenes. However, there is no reported quantitative method to analyze the role of virtual reality scenes in vection perception. In this article, 55 participants were enrolled to view the virtual rotational drum rotating around Pitch axis and Yaw axis respectively, and were required to report vection onset and the strength orally. The two kinds of scenes were randomly displayed and repeated three times for each subject, and each display lasted for 90s. The information of the visual scenes was estimated by the first-order entropy of the optical flow. Vection perception was found to be stronger in Pitch rotation condition and the optical flow entropy of this scene was larger. In conclusion, the experiment verified that the brain is more sensitive to downward movement from the perspective of the information quantity of visual sense.

Key words: virtual reality, vection, entropy, field of view, rotational drum

CLC Number: 

  • Q426
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