用於減緩虛擬實境暈眩之輔助系統

An Auxiliary System of Alleviating Motion Sickness in Virtual Environment

王中瑋(Wang Chung-Wei)

指導教授 ： 余能豪

國立政治大學/資訊學院/資訊科學系/碩士(2022年)

https://doi.org/10.6814/NCCU202200430

摘要

虛擬實境技術在過去幾年越發成熟，從初期的硬體及軟體開發已經解決了部分技術難題來提升使用者對於虛擬實境的體驗。而最困難的問題其中之一──暈動症（cybersickness）仍未解決，它會導致頭痛、噁心、嘔吐、疲勞等症狀。
暈動症的主要原因是來自於視覺感知和前庭系統間的衝突。許多應用程式或遊戲會要求使用者在超出追蹤設備涵蓋面積的虛擬環境中移動，此時會使用到虛擬移動。許多使用者曾回報說，當他們在虛擬環境中使用虛擬搖桿進行移動，而身體保持靜止時，容易造成暈動症。
為了提供更高的沈浸感並減少不適感，本研究設計了一套應用於頭戴式裝置（HMD）上的震動穿戴裝置。透過 HMD 上四個位置的震動馬達，欲模擬出在連續的平面移動（如駕駛、滑行）上，四個方向所受到的慣性力回饋。
本系統總共徵集了 18 位受測者，欲了解使用者於不同情況下，各裝置降低暈眩的成效。此外，也對使用者的回饋進行了質化分析，討論目前裝置存在的問題及未來可改善的方向。

關鍵字

虛擬實境 ； 暈動症 ； 頭戴式裝置 ； 360 影片 ； 駕駛模擬 ； 觸覺回饋

並列摘要

Virtual reality technology has become more mature in the past few years, and some technical issues have been solved by early hardware and software development to improve the user experience of virtual reality. One of the most difficult issues remains: cybersickness, which causes headaches, nausea, vomiting and fatigue.
The main cause of motion sickness is a conflict between visual perception and the vestibular system. Many applications or games require the user to move in a virtual environment that exceeds the area covered by the tracking device. Many users have reported suffering from motion sickness when they use a virtual stick to move around in a virtual environment while their body remains still.
　In order to provide a higher immersion sensation and reduce discomfort, a vibrating wearable device was designed for the head-mounted device （HMD）. Through the vibration motor at four positions on the HMD, we want to simulate the inertial force feedback received in four directions in the continuous planar movement such as driving and sliding.
　A total of 18 subjects were collected for this system to understand the effectiveness of each device in reducing dizziness for users under different conditions. In addition, a qualitative analysis of the user's feedback was conducted to discuss the current problems of the device and the direction for improvement in the future.

並列關鍵字

Virtual reality ； Motion sickness ； Head mounted display ； 360 videos ； Driving simulations ； Haptic feedback

參考文獻

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