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Spatial situation-oriented post-earthquake reconstruction map information encryption method

An information encryption and graph technology, which is applied in secure communication through chaotic signals, image analysis, secure communication devices, etc., can solve the problems that affect the target recognition accuracy of graphs, poor salience of target information features, etc.

Active Publication Date: 2021-01-05
湖北省地震局
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Problems solved by technology

[0004] Most of the commonly used spectral matching methods are based on the identification criteria to realize the spectral target recognition, without enhancing the spectral features, and when performing spectral recognition, the characteristics of the target information to be recognized become less significant due to the influence of noise. Using targeted methods to enhance such spectra in the map will affect the accuracy of target recognition in the map

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  • Spatial situation-oriented post-earthquake reconstruction map information encryption method
  • Spatial situation-oriented post-earthquake reconstruction map information encryption method
  • Spatial situation-oriented post-earthquake reconstruction map information encryption method

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Embodiment Construction

[0078] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0079] The purpose of anti-leakage is not only to prevent outsiders from stealing confidential information, but also to prevent insiders from actively leaking confidential information. The main difficulty of the anti-leakage mechanism is how to enable internal employees to use and view confidential data and information normally, while preventing their leakage. Without the need for a decryption key, active encryption technology can display confidential data information anywhere in the form of ciphertext, which guarantees the security of confidential information mathematically.

[0080] see figure 1 , the spatial situation-oriented post-earthquake reconstruction map information encryption method of the present invention comprises the following steps:

[0081] S1: see image 3 , identify the target information of the spatial situation...

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Abstract

The invention provides a spatial situation-oriented post-earthquake reconstruction map information encryption method. The method comprises the steps of identifying all map information of a spatial situation-oriented post-earthquake reconstruction image before encryption; aiming at the identified atlas target information, carrying out atlas information encryption based on a hyperchaotic sequence and a shift password, and realizing active encryption of post-earthquake reconstruction atlas information oriented to a space situation. According to the method, the application advantages of spectral feature enhancement, a hyperchaotic sequence and a shift password are fused, and spatial situation-oriented post-earthquake reconstruction atlas target information identification and atlas target information encryption are effectively completed; the encryption effectiveness of the encryption method for the post-earthquake reconstruction atlas information facing the space situation is verified through experiments, so that the atlas information is completely hidden, the safety of the atlas information is protected, and the method has practical application and popularization values. The method also has remarkable encryption effectiveness for the atlas information target with noise.

Description

technical field [0001] The invention belongs to the technical field of image encryption, and in particular relates to a method for encrypting post-earthquake reconstructed atlas information oriented to space situation. Background technique [0002] With the emergence of broadband network and multimedia technology, the extraction, transmission and processing of image data appear in every corner of the digital age, and the issue of image information security is very critical. A large amount of image information must be encrypted for transmission and storage, such as images taken by military satellites and drawings of new weapons. Among them, there is a large amount of private map information in the post-earthquake reconstruction images oriented to the space situation. For example, when designers design the post-earthquake reconstruction scheme oriented to the space situation, images taken by satellites are involved. For this reason, a large number of scholars have carried out ...

Claims

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Application Information

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IPC IPC(8): G06T7/90H04L9/00G06N7/08
CPCG06T7/90H04L9/001G06N7/08
Inventor 彭懋磊李垠特木其勒吴昊黎永东张亦梅刘可吕筱张萍
Owner 湖北省地震局
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