An asymmetrical watermarking algorithm for vector map data

Ye, Hui; Lian-quan, Min; Xiang, Hongfei

doi:10.2495/icct20130151

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Watermark Bit Mapping1

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2015

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“…With the precision tolerance of the map, the upper and lower bounds of (denoted as and , resp.) can be calculated by (4). Therefore, ℎ is the largest number by which ( , ℎ), ( , ℎ), and ( , ℎ) have the same value:…”

Section: Watermark Bit Mappingmentioning

confidence: 99%

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A Zero-Watermarking Scheme for Vector Map Based on Feature Vertex Distance Ratio

Peng

Yue

2015

Journal of Electrical and Computer Engineering

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With the rapid development of GIS and computer techniques, vector map data has been widely used in many fields. Since the production of map data is very costly, illegal copying will result in huge loss for data owners. In order to protect the copyright of vector data, digital watermarking has been employed in recent years. In this paper, a zero-watermarking scheme for vector map data is proposed. In the proposed scheme, FVDR (feature vertex distance ratio) is constructed based on the feature vertices of objects. The feature data, FVDR, is combined with watermark to generate the zero-watermark. Due to the specially designed cover data, the proposed scheme is robust to geometrical attacks, vertex attacks, and object attacks. The results of extensive experiments also demonstrate the robustness of the proposed scheme.

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Section: Watermark Bit Mappingmentioning

confidence: 99%

“…Although many watermarking schemes have been proposed [1][2][3][4][5][6][7], most of them modify the map more or less to embed the watermark in it. For a vector map, which is sensitive to the precision, any form of distortion is insufferable.…”

Section: Introductionmentioning

confidence: 99%

A Zero-Watermarking Scheme for Vector Map Based on Feature Vertex Distance Ratio

Peng

Yue

2015

Journal of Electrical and Computer Engineering

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show abstract

An asymmetrical watermarking algorithm for vector map data

Cited by 1 publication

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A Zero-Watermarking Scheme for Vector Map Based on Feature Vertex Distance Ratio

A Zero-Watermarking Scheme for Vector Map Based on Feature Vertex Distance Ratio

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