Blind digital watermarking encoding and decoding method capable of withstanding cropping attack for fusion vision model

An encoding and decoding method and visual model technology, applied in the field of blind digital watermarking encoding and decoding, can solve the problems of short development and running time, and achieve the effect of improving running speed and strong robustness

Active Publication Date: 2012-06-27
ZHEJIANG UNIV
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Problems solved by technology

However, due to various limitations of the current method, there are still many difficulties in developing a method with short running time and good robustness to clipping attacks and other attacks.

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  • Blind digital watermarking encoding and decoding method capable of withstanding cropping attack for fusion vision model
  • Blind digital watermarking encoding and decoding method capable of withstanding cropping attack for fusion vision model
  • Blind digital watermarking encoding and decoding method capable of withstanding cropping attack for fusion vision model

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Embodiment Construction

[0034] The invention is applicable to the copyright protection and anti-counterfeiting of image and video media, and is a blind digital watermark encoding and decoding method that can resist clipping attacks by integrating visual models, including the encoding and decoding process of watermark information. Wherein, the encoding process of the watermark information includes the following steps:

[0035] 1. Video collection: The present invention uses a CMOS camera array as a video collection system to collect video images in monitoring scenes under visible light conditions. The average control area of ​​each CMOS camera is about 10 square meters. Each camera is connected to a DSP processor. The role of the DSP processor is to perform initial processing on the images collected by the camera, including registration, noise reduction and equalization.

[0036] 2. Data transmission: The DSP processor has an image coding system, which encodes the video image after the initial proce...

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Abstract

The invention discloses a blind digital watermarking encoding and decoding method capable of withstanding a cropping attack for a fusion vision model; according to the invention, the scene information of a video image collected by a camera in a monitoring scene is directly added in the video image by digital watermarking encoding and decoding technology to facilitate a policymaker to make decision according to the video image and the self-carrying scene information; the watermarking encoding method optimized on the basis of secondary planning of the invention has strong stability on such attacks as cropping, noise, filtering and lossy data compression, and the like, so that the added scene information can withstand common amends on the video image; and a deconvolution synchronization point locating method of Fourier transform is adopted in the invention to improve the operation speed of the method and to operate a real-time watermarking encoding and decoding procedure on a PC platform by the method.

Description

technical field [0001] The invention relates to the technical field of digital watermarking, in particular to a blind digital watermarking encoding and decoding method suitable for image and video media copyright protection and anti-counterfeiting fusion visual model that can resist clipping attacks. Background technique [0002] Digital watermarking technology embeds some identification information directly into digital media, and realizes the protection of digital media on the basis of not affecting the use value of source media. Compared with traditional password protection, digital watermarking is concealed, so it is widely used to identify media content creators, confirm media recipients, transmit secret information, and determine whether media has been tampered with. The application range of digital watermarking covers the fields of copyright protection and covert communication, which are important components of economic and military activities. [0003] A good digita...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/24H04N7/26G06T1/00H04N19/44H04N19/467
Inventor 胡浩基于慧敏
Owner ZHEJIANG UNIV
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