Image information hiding method based on mimo channel communication

An image information and channel technology, applied in the field of image information hiding based on MIMO channel communication, can solve problems such as low reliability and inability to embed a large amount of secret information, and achieve the effect of improving detection reliability and ensuring imperceptibility.

Inactive Publication Date: 2017-09-29
HENAN UNIVERSITY
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  • Summary
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

That is to say, the current information hiding algorithm based on communication theory is limited by the capacity of Shannon, and cannot embed a large amount of secret information, and its reliability is low.

Method used

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  • Image information hiding method based on mimo channel communication
  • Image information hiding method based on mimo channel communication
  • Image information hiding method based on mimo channel communication

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Embodiment Construction

[0042] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0043] The present invention provides a method for hiding image information based on MIMO channel communication, comprising the following steps: decomposing the carrier image into diagonal high frequency subbands, vertical high frequency subbands, horizontal high frequency subbands and Low-frequency sub-bands, select the vertical high-frequency sub-bands and horizontal high-frequency sub-bands as the first MIMO channel and the second MIMO channel of the carrier image; convolutionally encode the secret information through a convolutional code encoder, and perform convolutional coding on the secret in...

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Abstract

The invention discloses an image information hiding method based on MIMO channel communication. The hiding method includes the following steps: decomposing the carrier image into diagonal high-frequency sub-bands, vertical high-frequency sub-bands, and horizontal high-frequency sub-bands through a first-order wavelet transform. frequency sub-band and low-frequency sub-band, select the vertical high-frequency sub-band and horizontal high-frequency sub-band as the first MIMO channel and the second MIMO channel; the secret information is convolutionally encoded by a convolutional code encoder, Alamouti space-time Block coding and block-based space-time interleaving; embedding the secret information after space-time interleaving into the first MIMO channel and the second MIMO channel of the carrier image through an additive algorithm formula; transforming the carrier image through wavelet inverse transform Reconstruct the image to get the hidden image. The invention not only improves the detection reliability of information hiding, but also ensures the imperceptibility of secret information, and realizes the hiding of large-capacity image information.

Description

technical field [0001] The invention relates to the technical field of digital media information security, in particular to an image information hiding method based on MIMO channel communication. Background technique [0002] With the rapid development of digital technology, the application of digital multimedia (image, video, audio and three-dimensional computer graphics, etc.) is becoming more and more extensive. Especially with the development of computer network communication technology, the exchange and transmission of data has become a relatively simple process. With the help of computers, digital scanners, printers and other electronic equipment, people can conveniently and quickly transmit digital information to all parts of the world. The digitalization of multimedia information provides great convenience for the access of multimedia information, but the accompanying information security issues are becoming more and more prominent, and the security of digital media...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04B7/0413H04N1/32H04N19/467
Inventor 张帆张新红张伯言
Owner HENAN UNIVERSITY
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