Distinctive Image Features from Scale-Invariant Keypoints
International Journal of Computer Vision
High accuracy and language independent document retrieval with a fast invariant transform
ICME'09 Proceedings of the 2009 IEEE international conference on Multimedia and Expo
Embedded media markers: marks on paper that signify associated media
Proceedings of the 15th international conference on Intelligent user interfaces
Mobile image recognition: architectures and tradeoffs
Proceedings of the Eleventh Workshop on Mobile Computing Systems & Applications
Large-scale EMM identification based on geometry-constrained visual word correspondence voting
Proceedings of the 1st ACM International Conference on Multimedia Retrieval
TouchPaper: making print interactive
Proceedings of the 20th ACM international conference on Multimedia
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An Embedded Media Marker (EMM) is a transparent mark printed on a paper document that signifies the availability of additional media associated with that part of the document. Users take a picture of the EMM using a camera phone, and the media associated with that part of the document is displayed on the phone. Unlike bar codes, EMMs are nearly transparent and thus do not interfere with the document appearance. Retrieval of media associated with an EMM is based on image features of the document within the EMM boundary. Unlike other feature-based retrieval methods, the EMM clearly indicates to the user the existence and type of media associated with the document location. A semi-automatic authoring tool is used to place an EMM at a location in a document, in such a way that it encompasses sufficient identification features with minimal disturbance to the original document. We will demonstrate how to create an EMM-enhanced document, and how the EMM enables access to the associated media on a cell phone.