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This paper is concerned with the problem of a non-fragile mixed H2/H∞ controller design for linear discrete-time systems in the presence of multiplicative controller gain variations. The purpose of work is to design a dynamic output feedback controller via matrix inequalities such that the closed-loop system is asymptotically stable and has mixed H2/H∞ performance criterions. Further, the result can...
We present a retrieval-based tracking system that requires less computational time and cost. The system tracks a user's location through a small portion of an image captured by the camera, and then refines the camera pose by propagating matchings to the whole image. Augmented information such as building names and locations will be delivered to the user. The progressive way to process image data not...
Finding corresponding image points is a challenging computer vision problem, especially for confusing scenes with surfaces of low textures or repeated patterns. Despite the well-known challenges of extracting conceptually meaningful high-level matching primitives, many recent works describe high-level image features such as edge groups, lines and regions, which are more distinctive than traditional...
We present a robust camera pose estimation approach for stereo images captured in untextured environments. Unlike most of existing registration algorithms which are point-based and make use of intensities of pixels in the neighborhood, our approach imports line segments in registration process. With line segments as primitives, the proposed algorithm is capable to handle untextured images such as...
For a given affine nonlinear system which can be linearized by full state feedback linearization, a simple and direct nonlinear robust control algorithm was presented. The design method of nonlinear robust controller was given firstly based on state feedback linearization and closed-loop gain shaping algorithm, then the design procedure of the simple and direct nonlinear robust control algorithm was...
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