視野周圍模糊對虛擬實境暈眩的影響

虛擬實境暈眩（cybersickness）是推廣虛擬實境及其應用的挑戰之一。許多不同的研究虛擬實境暈眩是推廣虛擬實境及其應用的挑戰之一。在過去已經有許多了解與減少虛擬實境暈眩的相關研究。從過去利用模糊影像或減少視野範圍的方法中，我們提出了模糊影像的邊緣（非注視區域），以減少虛擬實境暈眩。在影像邊緣，我們利用高斯模糊來模擬注視點渲染技術（foveated rendering）的呈現影像。在本研究中，我們分別探討了模糊區域的大小與位置固定與否，是否會影響虛擬實境暈眩、在虛擬實境中的任務表現、以及沉浸感。我們的結果顯示，在影像邊緣施以固定位置的模糊效果，可以減低虛擬實境暈眩，並且任務表現和沉浸感並無受到顯著影響。根據實驗結果，我們認為固定的注視點渲染技術除原本減輕系統效能負擔的目的之外，也同時具有降低虛擬實境暈眩的效果。

關鍵字

虛擬實境

並列摘要

Cybersickness is one of the challenges that has prevented the widespread adoption of Virtual Reality (VR) and its applications. Due to its importance, there have been extensive studies on understanding and reducing cybersickness. Inspired by previous work that has sought to reduce cybersickness by applying the blurring effect and reducing the field of view of VR scenes, we propose to exploit peripheral blur to reduce cybersickness. We investigated the effect of peripheral blur on cybersickness, task performance, and presence with two separate studies, focusing on two different factors. Specifically, we focus on the effect of the size of blurred peripheral region in our first study, and the effect of the position of the blurred peripheral region in the second study. We applied a Gaussian blur effect in the peripheral region to simulate the foveated rendering visual effect. The results revealed that peripheral blur with a fixed position can significantly reduce the growth of cybersickness. Additionally, the participants' task performance and levels of presence were not significantly influenced by the peripheral blur, suggesting that fixed foveated rendering could be a promising solution to reduce cybersickness without compromising users' VR experiences.