個人化可供性替代

Abstract

基於代理物件（proxy）的虛擬體驗透過實體物件提供真實的觸覺回饋，能有效提升虛擬環境中的沉浸感與真實感。然而，實體物件與虛擬物件之間存在多樣且難以預先掌握的對應可能，使體驗設計者面臨相當大的挑戰。即使近年來自動化配對技術逐漸發展，此類體驗的應用仍多侷限於經過事先規劃與配置的環境。為了進一步拓展自動化配對方法所能涵蓋的範圍，並探索更多潛在的隱藏可供性（hidden affordances），本研究提出「個人化可供性替代」（Personal Affordance Substitution），透過引導使用者進行探索，協助他們在原先被視為不匹配或不可行的物件組合中，發掘過去容易被忽略的可供性對應關係。本研究先透過探索性研究，驗證非典型物件組合之間是否存在新的對應可能。接著，我們開發一套能夠產生非典型物件對應方式的系統，並針對系統進行使用者研究，探討使用者如何感知並運用這些過去未被探索的物件對應方式。最後，本研究進一步探討「個人化可供性替代」如何揭示隱藏的可供性對應關係，以及透過使用者互動所發掘的物件對應方式，如何有助於未來系統辨識更多元的可供性對應關係，進而支援更具彈性的代理物件配對。

Proxy-based virtual experiences, while enhancing immersion and realism by leveraging real-world haptic feedback from physical objects, pose a great challenge for experience designers because of all kinds of mappings between physical and virtual objects that may or may not exist, limiting these experiences mostly applicable in fully prepared sites even with recent automatic mapping approaches. To advance automatic mapping approaches that cover more possible hidden affordances, we introduce Personal Affordance Substitution, a process that guides users to discover overlooked matches among previously mismatched or non-viable objects. We first conduct a formative study to verify that there are new mappings within unconventional object pairs. We then develop a system that generates unconventional mappings and conduct a summative study to investigate how users perceive and engage with previously unexplored mappings. Finally, we discuss how Personal Affordance Substitution can expose hidden affordance correspondences and how the mappings revealed through user interaction may help move toward systems that recognize more diverse affordance correspondences and support increasingly flexible proxy mappings.