設計擴增實境瀏覽介面於現實步行場景之經驗

Abstract

行動電話使得用戶能在不同的移動情境中瀏覽資訊。然而，在高移動性情境如步行時，手機存在多種使用上的挑戰，特別是安全性和螢幕尺寸有限的問題。雖然擴增實境（AR）被提出來解決這些問題，但先前的研究除了在文字可讀性和通知設計以外，尚未在真實的步行條件下探討 AR 介面設計。本文呈現了首次在野外步行時探索AR瀏覽介面設計及其延伸使用。我們首先在不同環境中與 12 位 UI 設計師進行設計會議，設計了三種應用程式類型：文字型、影片型和混合型的視窗大小、距離、不透明度、錨定類型和位置。結果顯示，交通程度顯著影響設計的視窗大小，而內容類型顯著影響視窗大小、距離、不透明度和垂直位置。為了獲取更多的真實世界使用見解，我們進行了為期多日的觀察性研究，包含 5 名參與者，並觀察到參與者平均每 3.3 分鐘切換一次視窗佈局，其動機包括安全性考量和不同視覺注意力的需要。

Mobile phones have enabled users to browse information in varying mobility contexts. For high-mobility settings such as walking, however, phones pose several usability challenges, particularly safety and limited screen sizes. While Augmented Reality (AR) has been proposed to address these issues, prior work has yet to investigate AR interface design in real-world walking conditions beyond text readability and notification design. This paper presents the first exploration of AR browsing interface design and extended usage while walking in the wild. We first conducted design sessions with 12 UI designers while walking in varied environments to design the window size, distance, opacity, anchor type, and placement for three categories of apps: text, video, and mixed content. Results show that traffic level significantly affects the designed window size, whereas content type significantly affects window size, distance, opacity, and vertical placement. To gain further insights from real-world usage, we conducted a multi-day observational study with 5 participants and observed that participants on average switched among window layouts every 3.3 minutes, for reasons such as safety and the level of extended visual attention.