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Electronic chart security watermarking technology based on semantic feature

A technology of electronic charts and semantic features, which is applied in image data processing, image data processing, instruments, etc., can solve problems that have been proposed for the first time, achieve good applicability, and meet the requirements of non-destructive accuracy

Inactive Publication Date: 2017-01-11
HARBIN ENG UNIV
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Problems solved by technology

As we all know, two-dimensional electronic charts have been widely used in ocean development, marine engineering and other fields; at the same time, the security problems that exist after the wide-scale application of two-dimensional electronic charts have quickly become the focus of researchers. Among them, the two It is the first time in China that the research on "safety watermarking" and related technologies of electronic charts has been proposed.

Method used

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  • Electronic chart security watermarking technology based on semantic feature
  • Electronic chart security watermarking technology based on semantic feature
  • Electronic chart security watermarking technology based on semantic feature

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Experimental program
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Embodiment Construction

[0051] The present invention will be described in more detail below with examples in conjunction with the accompanying drawings.

[0052] Choose the ArcGIS secondary development platform based on the AO plug-in. The ArcGIS platform is the mainstream digital map editing environment, which can classify map layers and extract various attribute information such as coordinates. The system provides a secondary open environment based on two modes of AO (Arc Objects) and AE (Arc Engines). For the research field of map digital watermarking, the AO-based development environment provides more packages and objects for calling.

[0053] Such as Figure 9 As shown, three digital maps were selected for the experiment. according to Figure 11 Table 1 and Figure 12 According to the rules of Table 2, the present invention selects a digital watermark image such as Figure 9 As shown, the watermark image size is 30×40. The embedding rate is defined between 40% and 60%. The embedding rate ...

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Abstract

The invention provides an electronic chart security watermarking technology based on a semantic feature. The technology includes: construction of a security watermarking identifier; semantic conversion of the watermarking identifier; manufacture of a semantic watermark; embedding of a digital watermark; extraction of the semantic watermark; and semantic feature image matching. According to the technology, the application of the security and reliability of a two-dimensional electronic chart is researched, data characteristics of the electronic chart and structural characteristics of files are fully considered, the stable performance of the watermarking method in terms of the watermark capacity and the robustness etc. is maintained, and goals of control of transmission security of the electronic chart and the management of the operation authority are achieved; in theory, a new principle and a new method are provided for the intersected research of the digital watermarking field, a new key technology is provided for the expanded application of digital watermarking, and the practicality of the research of digital watermarking is promoted; and in application, a new technology is provided for network safety management and reliability application of the digital chart.

Description

technical field [0001] The invention relates to an encryption protection method of an electronic chart, in particular to an electronic chart authority watermarking technology. Background technique [0002] Permission watermark, also known as "security watermark", is a kind of reversible watermark, but the permission watermark logo includes the operating characteristics and file attributes of the chart, so the purpose of restricting user operation rights can be achieved by analyzing the watermark logo. As we all know, two-dimensional electronic charts have been widely used in ocean development, marine engineering and other fields; at the same time, the security problems that exist after the wide-scale application of two-dimensional electronic charts have quickly become the focus of researchers. Among them, the two It is the first time in China that the research on "safety watermarking" and related technologies of electronic charts has been proposed. At present, the research ...

Claims

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Application Information

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IPC IPC(8): G06T1/00
CPCG06T1/0028
Inventor 孙建国袁野李守政张硕
Owner HARBIN ENG UNIV
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