An efficient selective encryption scheme for HEVC based on hyperchaotic Lorenz system

2021 ◽  
Author(s):  
Qiao-jia Zhang ◽  
Qing Ye ◽  
Liang Li ◽  
Si-jie Liu ◽  
Kai-qiang Chen
Keyword(s):  
Lorenz System ◽  
Encryption Scheme ◽  
Selective Encryption ◽  
Hyperchaotic Lorenz System

A novel selective encryption scheme for H.264/AVC video with improved visual security

2020 ◽  
Vol 89 ◽  
pp. 115994
Author(s):  
Junhui He ◽  
Yuzhang Xu ◽  
Weiqi Luo ◽  
Shaohua Tang ◽  
Jiwu Huang
Keyword(s):  
Encryption Scheme ◽  
Selective Encryption ◽  
Visual Security

Synchronization of hyperchaotic Lorenz system based on passive control

2006 ◽  
Vol 15 (9) ◽  
pp. 1971-1975 ◽  
Author(s):  
Wang Fa-Qiang ◽  
Liu Chong-Xin
Keyword(s):  
Passive Control ◽  
Lorenz System ◽  
Hyperchaotic Lorenz System

scholarly journals Generalized Projective Synchronization for Different Hyperchaotic Dynamical Systems

2011 ◽  
Vol 2011 ◽  
pp. 1-19 ◽  
Author(s):  
M. M. El-Dessoky ◽  
E. Saleh
Keyword(s):  
Dynamical Systems ◽  
Numerical Simulations ◽  
Lorenz System ◽  
Sufficient Conditions ◽  
Projective Synchronization ◽  
Hyperchaotic Lorenz System ◽  
Generalized Projective Synchronization ◽  
Hyperchaotic Systems

Projective synchronization and generalized projective synchronization have recently been observed in the coupled hyperchaotic systems. In this paper a generalized projective synchronization technique is applied in the hyperchaotic Lorenz system and the hyperchaotic Lü. The sufficient conditions for achieving projective synchronization of two different hyperchaotic systems are derived. Numerical simulations are used to verify the effectiveness of the proposed synchronization techniques.

ACTIVE TRACKING CONTROL OF THE HYPERCHAOTIC LORENZ SYSTEM

2008 ◽  
Vol 22 (19) ◽  
pp. 1859-1865 ◽  
Author(s):  
XINGYUAN WANG ◽  
DAHAI NIU ◽  
MINGJUN WANG
Keyword(s):  
Numerical Simulation ◽  
Tracking Control ◽  
Chaotic Systems ◽  
Lorenz System ◽  
The Self ◽  
Hyperchaotic System ◽  
Reference Signals ◽  
Tracking Controller ◽  
Hyperchaotic Lorenz System ◽  
Simulation Results

A nonlinear active tracking controller for the four-dimensional hyperchaotic Lorenz system is designed in the paper. The controller enables this hyperchaotic system to track all kinds of reference signals, such as the sinusoidal signal. The self-synchronization of the hyperchaotic Lorenz system and the different-structure synchronization with other chaotic systems can also be realized. Numerical simulation results show the effectiveness of the controller.

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