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Image co-segmentation is the problem of extracting the common objects from multiple images. Foreground segmentation is always effected by the diverse objects and complex background. However, the existing methods didn't pay much attention to images' background as object, especially the similar background. To address the similar scene co-segmentation problems, a method which considers the foreground...
This paper is concerned with the robust adaptive H∞ fault-tolerant control problem for linear systems with the mismatched parameter uncertainties, input channel and external disturbances, and actuator faults including loss of effectiveness, outage and stuck. Without requiring any fault detection and isolation mechanism, a novel adaptation law with a rather simpler structure is employed to estimate...
Video denoising based on temporal or spatiotemporal filtering is highly effective but computationally expensive due to the requirement of motion estimation. Encoder-integrated denoising is an efficient framework that embeds the filtering process into the encoding pipeline so that motion estimation for denoising can be avoided. State-of-the-arts encoder-integrated methods use Least Minimum Mean Square...
The existing problems in civil aviation information network are described. The research progress about network reliability is elaborated. Existing problems in the research for the reliability of civil aviation network is pointed out. This paper proposes to use the complex network theory to study the reliability of civil aviation information
The static synchronous compensator (STATCOM) is a flexible ac transmission system(FACTS) device which can be used to generate reactive power in long distance ac power transmission. Cascade multilevel STATCOM is a so strongly coupled and nonlinear system that conventional linear control cannot assure a satisfactory behavior. In order to achieve high dynamic performance and robustness of control system,...
In this paper, a class of nonlinear controllers is proposed for rotational maneuvers of spacecraft with a pair of flexible appendages attached. With the application of proposed nonlinear feedback torque, dynamic equations of the flexible spacecrafts are converted into the linear parameter-varying (LPV) form. Regional pole assignment for the resultant LPV system is performed via secondary linear state...
This paper presents a nonlinear controller which is called auto-disturbance rejection controller (ADRC) applied to a gyro stabilized system. The mathematical model of the servo loop of the gyro stabilized system is discussed. The basic theory of the ADRC is introduced. According to the mathematical model, the parameters of ADRC for the servo loop is designed. The results of simulation show that not...
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