A SELECTIVE AUTHENTICATION WATERMARKING ALGORITHM FOR 2D CAD ENGINEERING DRAWINGS BASED ON ENTITY LOCALIZATION

被引：0

作者：

Li, Bo ^{[1
]}

Jiang, Xuemei ^{[1
]}

Zhang, Xiaomei ^{[1
]}

Ai, Qingsong ^{[1
]}

机构：

[1] Wuhan Univ Technol, Key Lab Fiber Opt Sensing Technol & Informat Proc, Minist Educ, Wuhan 430070, Hubei, Peoples R China

来源：

PROCEEDINGS OF THE 2014 INTERNATIONAL CONFERENCE ON INNOVATIVE DESIGN AND MANUFACTURING (ICIDM) | 2014年

关键词：

2D CAD Engineering Drawings; Selective Authentication Watermarking; Integrity Authentication; Entity Localization;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper presents a selective authentication watermarking algorithm for 2D CAD engineering drawings based on entity localization. Firstly, get the vertexes of each entity and map them to log-polar coordinates, the sum of amplitude before accuracy and handle of previous entity is used to generate a watermark. Then use the improved difference expansion (IDE) algorithm to embed the watermark into corresponding amplitude. Theoretical analysis and experimental results show that the proposed algorithm is not only robust against global geometric operations such as translation, rotation and scaling, but extremely sensitive to malicious attacks which affect the normal use of drawings, meanwhile it can also locate tampering to a specific entity. It provides an effective method for integrity authentication of engineering drawings.

引用

页码：82 / 87

页数：6

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