Abstract
Received 3 December 2014; received in revised form 3 March 2015; accepted 3 March 2015ABSTRACTRadio-Frequency Identification (RFID) or Near Field Communication (NFC) technology hasmany advantages over other visual interfaces since it does not require line-of-sight alignment,can identify multiple tags simultaneously, and does not destroy the integrity of original objects.In addition, smart devices such as smartphone and smartpad have NFC/RFID readers which canprovide mobile and natural interactions with digital and physical contents. Augmented realityhas an excellent visual interaction capability with digital contents in a real environment byembedding digital contents into the physical world. In this paper, we propose a new approach todigital content interactions using RFID/NFC-based tangible interfaces in augmented reality envi-ronments that utilize invisible interfaces in addition to marker-based visual interfaces. By com-bining the advantages of invisible and visual interfaces, more intuitive interactions with digitalcontents can be provided, which can remove the difficulty of using typical AR paddles that arewidely used in AR interactions. In particular, a semantic AR ontology is defined to providemore convenient interactions. Through the semantic ontology-based inferencing, physical query-ing and filtering are effectively supported. We will show the effectiveness and advantage of theproposed approach by demonstrating implementation results.Key Words:Augmented Reality, Digital Content Interaction, NFC, RFID, Semantic Ontology,Tangible Interface
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