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Time-Variant Watermarks for Digital Videos: An MPEG-Based Approach

Time-Variant Watermarks for Digital Videos: An MPEG-Based Approach

Ernst L. Leiss
Copyright: © 2005 |Pages: 18
ISBN13: 9781591405184|ISBN10: 1591405181|ISBN13 Softcover: 9781591405191|EISBN13: 9781591405207
DOI: 10.4018/978-1-59140-518-4.ch008
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MLA

Leiss, Ernst L. "Time-Variant Watermarks for Digital Videos: An MPEG-Based Approach." Digital Watermarking for Digital Media, edited by Juergen Seitz, IGI Global, 2005, pp. 215-232. https://doi.org/10.4018/978-1-59140-518-4.ch008

APA

Leiss, E. L. (2005). Time-Variant Watermarks for Digital Videos: An MPEG-Based Approach. In J. Seitz (Ed.), Digital Watermarking for Digital Media (pp. 215-232). IGI Global. https://doi.org/10.4018/978-1-59140-518-4.ch008

Chicago

Leiss, Ernst L. "Time-Variant Watermarks for Digital Videos: An MPEG-Based Approach." In Digital Watermarking for Digital Media, edited by Juergen Seitz, 215-232. Hershey, PA: IGI Global, 2005. https://doi.org/10.4018/978-1-59140-518-4.ch008

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Abstract

Watermarks provide a means of embedding information into digital videos that can be used for a variety of purposes, such as establishing ownership, tracing origin of copies, and so forth. We outline an approach that permits a significant increase in the amount of information that can be accommodated in a watermark, namely time-variant watermarks. The approach is formulated assuming the video is represented in an MPEG format. Implementation issues of time-variant watermarks are discussed, as are their advantages over the usual time-invariant watermarks, with emphasis on defeating attacks using filtering, cropping, resizing, and other standard methods used to defeat watermarks, such as changing existing frames, as well as new attacks, such as removing, repeating, or permuting frames.

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