著者
平尾 悠太朗 三家 礼子 河合 隆史
出版者
特定非営利活動法人 日本バーチャルリアリティ学会
雑誌
日本バーチャルリアリティ学会論文誌 (ISSN:1344011X)
巻号頁・発行日
vol.23, no.4, pp.263-270, 2018 (Released:2018-12-31)
参考文献数
20
被引用文献数
1

This paper describes methods of presenting sense of weight in VR for a wide range of masses. Two approaches are proposed; while lifting a virtual object, 1) the object follows participant's hand with delay, 2) the distance between the hand and the object is increased. These approaches were evaluated in a user study that utilized magnitude estimation and gripping force measurements. The results suggest that participants could perceive multiple different weights using both approaches. Moreover, the ratio between minimum and maximum value of magnitude estimations was 3.2 in the first approach and 4.4 in the second approach.
著者
三家礼子
出版者
岐阜県
雑誌
岐阜県生活技術研究所研究報告
巻号頁・発行日
vol.平成19年度, no.10, 2008
著者
金 相賢 盛川 浩志 三家 礼子 渡邊 克巳 河合 隆史
出版者
ヒューマンインタフェース学会
雑誌
ヒューマンインタフェース学会論文誌 (ISSN:13447262)
巻号頁・発行日
vol.18, no.4, pp.329-338, 2016-11-25 (Released:2019-07-01)
参考文献数
34

We evaluated the effects of disparity conditions such as degree of crossed/uncrossed disparity on the preference occurring during the cognitive process of preference judgment by using psychological and physiological indices. First, we performed paired comparisons of 20 novel shapes without disparity in order to select eight stimuli with minimum bias during preference judgment. Second, we investigated the effects of parallax characteristics on the feeling of preference by using 24 stimuli created by adding three disparity conditions (0.3°, -0.3° and -1.1°) to the eight previously determined stimuli. Moreover, psychological indices were determined by paired comparisons of preference judgment and physiological indices were determined by measurements of eye movement, eye fixation time, and view count during the process of preference judgment. The paired comparisons showed that the participants preferred higher crossed disparity and higher parallax angles. The eye movement measurements showed that eye fixation time and view count increased during conditions of crossed disparity rather than uncrossed disparity, and this increase was directly proportional to the degree of parallax angle. We argue that the reasons for this may be related to the attraction of the crossed disparity and the familiarity and novelty that complements the addition of parallax.