COPYRIGHT TRACING USING INVARIANTS OF CONTENTS (TP-P5)

Author(s) : Jinhui Chao (Chuo University, Japan) Shintaro Suzuki (Chuo University, Japan) Jongdae Kim (Chuo University, Japan)

Abstract : In this paper, a method of copyright monitoring or tracing using invariants of contents is proposed. We first define certain feature parameters of color images which are invariant under arbitrary bi-continuous or smooth transforms, called topological or differentially topological invariants.To extract the topological invariants robustly, we introduce scale-space of invariant features. By selecting topologically stable features with respect to scale transformation, noise-robust invariants of images are obtained. These invariants can be applied to image retrieving, passive watermark due to their robustness against various deformation attacks.

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