Safe information transmission method based on lossless watermark embedding and safe video hiding

A watermark embedding and information security technology, which is applied in the field of information transmission, can solve the problems of embedding capacity, tamper detection accuracy, poor image quality recovery method, inability to meet information encryption security requirements, and large watermark information.

Inactive Publication Date: 2016-09-28
BEIJING BUSINESS INTELLIGENCE & COMM TECH
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Problems solved by technology

[0004] However, the current division method based on fixed blocks has the following disadvantages: the accuracy of tamper detection lies in the size of the block, the smaller the size, the more accurate it is, but more watermark information needs to be embedded
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  • Safe information transmission method based on lossless watermark embedding and safe video hiding
  • Safe information transmission method based on lossless watermark embedding and safe video hiding
  • Safe information transmission method based on lossless watermark embedding and safe video hiding

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Embodiment Construction

[0071] In order to make the technical problems, technical solutions and beneficial effects solved by 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.

[0072] In regional medical information sharing such as remote diagnosis, in addition to proving the true source of the original medical image, it is very important to authenticate the integrity of the image during transmission. Integrity authentication of medical images is also called tampering detection. The tampering detection algorithm of the present invention can not only judge whether the image has been tampered with, but also accurately locate and approximate the tampered area.

[0073] The present invention provides a method for secure information transmission bas...

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Abstract

The invention provides a safe information transmission method based on lossless watermarking embedding and safe video hiding. The method includes the steps of employing a lossless watermark embedding algorithm to embed a lossless watermark in a first sensitive image to obtain a sensitive image with embedded watermark, employing a safe video hiding algorithm to embed the sensitive image with the embed watermark as hidden information in an original video to obtain a video X with secrete information, a receiving end extracting the hidden information from the received video X with secrete information, further extracting and analyzing the extracted hidden information, determining whether the image is tempered during a transmission process, if yes, positioning the tempered position and restoring the image. The lossless watermark embedding technology and high capacity safe video hiding technology are effectively combined, the watermark embedding capacity is substantial increased, the tempering detection is highly accurate, the image is restored in a high quality way, and safe image transmission is ensured.

Description

technical field [0001] The invention belongs to the technical field of information transmission, and in particular relates to an information security transmission method based on lossless watermark embedding and security video hiding. Background technique [0002] With the development of network and multimedia, digital medical information systems, such as hospital information systems and electronic medical record systems, are playing an increasingly important role. However, when medical images are transmitted on the public network, they are vulnerable to malicious tampering, so tampering detection and recovery of medical images are particularly important. [0003] At present, the tamper detection algorithm based on lossless digital watermark is mainly used to detect the integrity of the image. The main detection principle is: divide the image into fixed size blocks, and then select the feature value of the block as a watermark to embed in the image block. If the image is ta...

Claims

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Application Information

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IPC IPC(8): H04N19/467H04N19/13H04N19/96H04N19/91
CPCH04N19/467H04N19/13H04N19/91H04N19/96
Inventor 杨永民公备叶小列景丽
Owner BEIJING BUSINESS INTELLIGENCE & COMM TECH
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