A method and device for securely sending and receiving medical images
A medical image and transmission method technology, applied in the field of image processing, can solve the problems of poor security and slow transmission speed of medical images, and achieve the effects of reducing computational complexity, increasing transmission speed, and reducing data volume
Active Publication Date: 2022-06-07
PEKING UNION MEDICAL COLLEGE HOSPITAL CHINESE ACAD OF MEDICAL SCI
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[0003] Embodiments of the present invention provide a method and device for securely sending and receiving medical images to solve the problems of poor security and slow transmission speed of medical images during transmission
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[0051] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings. Here, the exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but not to limit the present invention.
[0052] Here, it should also be noted that, in order to avoid obscuring the present invention due to unnecessary details, only the structures and / or processing steps closely related to the solution according to the present invention are shown in the drawings, and the related structures and / or processing steps are omitted. Other details not relevant to the invention.
[0053] It should be emphasized that the term "comprising / comprising" when used herein refers to the presence of a feature, element, step or component, but does not exclude the presence or addition of one or more other feat...
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The invention provides a method and device for safely sending and receiving medical images. The method performs sparse representation on the original medical image to obtain a sparse matrix; uses a logistic chaotic system to generate two chaotic matrices and calculates the tensor product, and uses the tensor product to analyze the medical image. The sparse matrix of the image is sampled and compressed to obtain the observation matrix, and the observation matrix is normalized; the Chen chaotic system is used to generate the first chaotic sequence and the second chaotic sequence, and the first chaotic sequence is used to normalize the normalized observation matrix. Spatial scrambling, using the second chaotic sequence to digitally hide and encrypt the observation matrix after spatial scrambling to obtain an encrypted image; the first initial parameter, the second initial parameter, the third initial parameter, the fourth initial parameter, and normalization processing The standard parameters and encrypted image are sent to the receiving end; during the receiving process, the encryption process is reversed and the image is reconstructed based on the IRLS algorithm. This method generates a measurement matrix based on two chaotic matrices, which has a large key space and high security.
Description
technical field [0001] The present invention relates to the technical field of image processing, and in particular, to a method and device for safely sending and receiving medical images. Background technique [0002] With the continuous improvement of medical needs, a large amount of medical data is always generated in different medical care scenarios, and the fast and safe transmission of medical images faces challenges. Medical images usually involve the personal privacy of patients, and there is a high demand for security in the process of Internet transmission. In addition, a large amount of medical image data has a large storage space and a slow transmission speed. At the same time, in order to ensure the diagnosis effect, it is also necessary to ensure that the medical image will not lose information during the transmission process. Therefore, medical data with medical images as the main body have higher and higher requirements for confidentiality and integrity in th...
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IPC IPC(8): H04L9/00H04L9/40
CPCH04L9/001H04L63/0428H04L2209/88
Inventor 王怡宁李书芳王成宇
Owner PEKING UNION MEDICAL COLLEGE HOSPITAL CHINESE ACAD OF MEDICAL SCI