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A digital watermarking scheme for Bezier surfaces

conference contribution
posted on 2003-01-01, 00:00 authored by J Chadwick, Shaun BangayShaun Bangay, P Wentworth
Owners and vendors are increasingly publishing their materials in digital form. Because such materials can be exactly copied, a mechanism is required that will protect the legitimate owners of these works, by providing proof of original ownership. Digital watermarking has now become one accepted method of establishing ownership of digital materials. The owner of a work embeds a pattern, called a digital watermark, in the content. This embedded watermark is normally undetectable, but its presence can be demonstrated by the owner of the work or his agent, thereby proving ownership. Digital watermarking has been used for many types of multimedia content, primarily audio, video and flat images. Recently, interest has been shown in applying digital watermarking schemes to 3D surfaces, in various formats. In this paper, we examine a method whereby a digital watermark can be embedded in a Bezier surface. A prototype watermarking method for such surfaces is presented, with some experimental results, and a discussion of directions for future research.

History

Event

South African Telecommunications, Networks and Applications Conference (6th : 2003 : Southern Cape, South Africa)

Publisher

[SATNAC]

Location

Southern Cape, South Africa

Place of publication

[Southern Cape, South Africa]

Start date

2003-09-07

End date

2003-09-10

ISBN-10

0620309490

Language

eng

Publication classification

E1.1 Full written paper - refereed

Title of proceedings

SATNAC : Proceedings of the 6th South African Telecommunications, Networks and Applications Conference

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