近年來擴增實境的應用與研究像雨後春筍般湧現，國內外已廣泛應用於教育、遊戲與廣告等。在以往的擴增實境系統中，標記僅提供追蹤及辨識之用，它們並不包含其他資訊。因此任何標記與標記相對應的虛擬物件都必須預先註冊於系統中以供系統執行時使用。目前常見的擴增實境系統與研究大部分更以自行設計的標記作為辨識對象，它們並非通用的標記或條碼，在使用上有其侷限性，難以藉此開發出多樣與新奇的應用。
QR Code為一廣泛使用之二維條碼並擁有高容量等優勢，因此若將其結合擴增實境技術必能應用至許多層面。在本研究中，我們結合了QR Code與擴增實境兩樣技術，除了開發以QR Code為擴增實境標記的追蹤與辨識技術外，也透過國內外研究的分析，設計一個多用途的擴增實境架構。本架構不僅限於單一QR Code的使用，尚考量到多重QR Code的擴增實境應用。當使用者以行動裝置拍攝數個QR Code時，系統可以正確解析主要顯示用的QR Code之內容，並下載後視覺化呈現虛擬物件。其他的QR Code能個別顯示次要的內容，並整合至主要顯示物件。除此之外，QR Code亦可作控制之用，例如可用來操控虛擬物件的大小、顏色或是材質貼圖等。本多用途擴增實境架構另一個主要目的是希望讓不同內容提供者藉由本架構能互相整合各自的數位內容，而不需彼此間技術上之磨合。此舉能讓內容提供者只需專注於內容的設計不需擔心技術問題，進而開發出更多有趣的應用。
The field of Augmented Reality (AR) has grown and progressed remarkably in recent years and many useful AR applications have been developed focusing on different areas such as game, education and advertisement. However, most of these AR systems are designed for closed applications with particular markers, limited number of users and restricted digital contents. Hence, they are inappropriate for public environment with diverse digital contents.
In this work we aim at developing a comprehensive framework that can integrate 3D contents from different providers into an AR demonstration. The main purpose of this framework is that we want to separate content providers from sophisticated AR technology so that they only need focusing on content creation and getting rid of the technology issues of setting up an AR system. We expect that with this system different contents can be integrated seamlessly in the AR system even the content providers do not know what the other contents to be integrated are. To achieve this goal, all the control information required for AR joint demonstration must be defined and embedded in the marker. In our system, we use a universal 2D barcode, the QR Code, as our AR marker as its information capacity is sufficient large to afford our application and is widely used in many countries. Besides, QR Code has many advantages that familiar AR marker do not have for public applications. Thus, based on this framework many useful and interesting AR applications can be developed in the areas of commerce, industry and many others.
