使用 360 度震動頭帶創造頭部周圍的觸覺似動運動

Abstract

我們提出了 MotionRing，一個透過控制一維 360 度稀疏陣列的震動馬達的震動時間，在頭部周圍產生觸覺似動運動的震動頭帶。其獨特的環形形狀能夠產生對稱和不對稱的觸覺運動體驗，像是當使用者穿越環境，或是有物體從附近的任何方向經過。我們首先進行了一項感知研究，以瞭解震動馬達震動的時間點、間距、持續時間、強度和頭部區域等因素如何影響人對觸覺似動運動的感知。結果顯示，使用 12個和 16 個震動馬達，角速度在每秒 0.5-4.9 轉之間，可以在頭部周圍產生觸覺似動運動。接著，我們開發了對稱和非對稱的觸覺運動模式，分別用於增強閃避足球和虛擬實境 (VR) 中的瞬間移動的體驗。我們使用這兩個體驗情境，進行了一項使用者體驗評估，比較 MotionRing、靜態震動模式和純視覺回饋的體驗。結果顯示，觸覺似動運動明顯改善了使用者對運動事件的方向感和享受度，並且最受使用者青睞。

We present MotionRing, a vibrotactile headband that creates illusory tactile motion around the head by controlling the timing of a 1-D, 360° sparse array of vibration motors. Its unique ring shape enables symmetric and asymmetric haptic motion experiences, such as when users pass through a medium and when an object passes nearby in any direction. We first conducted a perception study to understand how factors such as vibration motor timing, spacing, duration, intensity, and head region affect the perception of apparent tactile motion. Results showed that illusory tactile motion around the head can be achieved with 12 and 16 vibration motors with angular speed between 0.5-4.9 revolutions per second. We developed a symmetric and an asymmetric tactile motion pattern to enhance the experience of teleportation in VR and dodging footballs, respectively. We conducted a user study to compare the experience of MotionRing vs. static vibration patterns and visual-only feedback. Results showed that illusory tactile motion significantly improved users’ perception of directionality and enjoyment of motion events, and was most preferred by users.