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Blind detecting system and method for digital watermarking flooding

A technology of digital watermarking and blind detection, applied in character and pattern recognition, instruments, computer components, etc., can solve problems such as lack of unity, lack of generalization characteristics of multimedia data information, detection efficiency and usability limitations, and achieve low The effect of false alarm rate, compensation for singleness, and high detection rate

Inactive Publication Date: 2008-09-03
BEIJING VENUS INFORMATION TECH
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Problems solved by technology

The existing digital watermark detection technology is specific to different embedded objects and embedded algorithms, and there is no unified standard specification algorithm. When used for Internet detection, it often does not have generalization characteristics in the face of massive multimedia data information. There are many limitations to detection efficiency and usability based on raw image detection

Method used

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  • Blind detecting system and method for digital watermarking flooding
  • Blind detecting system and method for digital watermarking flooding
  • Blind detecting system and method for digital watermarking flooding

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Embodiment Construction

[0034] A generalized blind detection method for digital watermarks. First, use linear correlation detection algorithm, whitening linear correlation detection algorithm, block-based linear correlation detection algorithm, block-based whitening linear correlation detection algorithm, and Viterbi detection algorithm for the object to be detected. Intensity and detection threshold ensure the detection rate is optimal, and compare the detection results of each detection algorithm with the rules in the database. If it matches a rule, it indicates that a digital watermark is detected and exits; if each The detection algorithm did not match any rules, indicating that no digital watermark was detected.

[0035] The sequential detection method is used to detect the image to be detected, and then the data fusion method is used to comprehensively analyze the detection results, and finally judge the watermark information, and according to the comprehensive analysis and planning of the detec...

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Abstract

A general blind detection system for digital watermark and method, which contains a number of detecting algorithm software, such as the order detection software on the digital images, the fusion analysis software according to the result of these detection algorithm, and the detection rule database software which is compared with these algorithm and fusion analysis. In the condition of on original watermark, it can use the detection algorithm according to the embedding algorithm detects several different embedding ones, and make fusion analysis on the result by the rule, to detect the watermark of digital image.

Description

technical field [0001] The invention relates to a digital watermark generalization blind detection system and detection method, belonging to the field of information security. Background technique [0002] Digital watermarking technology adds the required data to the carrier data, and the information in it can be detected at any time through certain means. Therefore, the technology requires that the information added to the carrier does not destroy the normal use of the carrier data, which is the invisibility requirement of the watermarking technology. Similarly, the carrier data may be compressed for transmission and various signal processing to meet various needs. Therefore, the watermark information at this time should also be detectable, that is, the watermark technology should also be robust. After several years of hard work by many researchers, it is found that digital watermarking technology must have a one-way requirement, otherwise the watermarking technology canno...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00
Inventor 华东明于德强刘月琴焦玉峰
Owner BEIJING VENUS INFORMATION TECH
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