Robust object-based watermarking using feature matching

被引：18

作者：

Pham, Viet-Quoc ^{[1
]}

Miyaki, Takashi ^{[2
]}

Yamasaki, Toshihiko ^{[1
]}

Aizawa, Kiyoharu ^{[1
]}

机构：

[1] Univ Tokyo, Dept Informat & Commun Engn, Tokyo 1138656, Japan

[2] Univ Tokyo, Dept Frontier Informat, Kashiwa, Chiba 2778561, Japan

来源：

IEICE TRANSACTIONS ON INFORMATION AND SYSTEMS | 2008年 / E91D卷 / 07期

关键词：

digital watermarking; geometrically invariant; scale-invariant feature transform; object matching;

D O I：

10.1093/ietisy/e91-d.7.2027

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

We present a robust object-based watermarking algorithm using the scale-invariant feature transform (SIFT) in conjunction with a data embedding method based on Discrete Cosine Transform (DCT). The message is embedded in the DCT domain of randomly generated blocks in the selected object region. To recognize the object region after being distorted, its SIFT features are registered in advance. In the detection scheme, we extract SIFT features from the distorted image and match them with the registered ones. Then we recover the distorted object region based on the transformation parameters obtained from the matching result using SIFT, and the watermarked message can be detected. Experimental results demonstrated that our proposed algorithm is very robust to distortions such as JPEG compression, scaling, rotation, shearing, aspect ratio change, and image filtering.

引用

页码：2027 / 2034

页数：8

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