Embedded Media Markers: Marks on Paper that Signify Associated Media

Abstract

Embedded Media Markers, or simply EMMs, are nearly
transparent iconic marks printed on paper documents that
signify the existence of media associated with that part of
the document. EMMs also guide users’ camera operations
for media retrieval. Users take a picture of an EMMsignified
document patch using a cell phone, and the media
associated with the EMM-signified document location is
displayed on the phone. Unlike bar codes, EMMs are nearly
transparent and thus do not interfere with the document
contents. Retrieval of media associated with an EMM is
based on image local features of the captured EMMsignified
document patch. This paper describes a technique
for semi-automatically placing 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.