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In this paper, based on recently developed deterministic learning (DL) theory, we investigate the problem of stabilization for an underactuated rigid spacecraft with unknown system dynamics. Our objective is to learn the unknown underactuated system dynamics while tracking to a desired orbit and design the control law to achieve stabilization. Firstly, the system dynamic and kinematic equations are...
A method for moving multi-target recognition and tracking in stable scene is presented. Optical flow is used to extract the velocity of pixels, and targets are recognized by combining motion character points obtained by binary discrete wavelet transforms (BDWT). A discrete kalman filter is used to track targets in the follow-up frames; the center and scale of tracking window are updated by a Mexico...
A novel method for the detection of multiple moving objects is proposed in this paper. In order to get the detailed information of the objects, fast level set method which is only based on the evolution of single link list is mainly used to detect the boundaries of moving objects. The whole process consists of two main procedures: the coarse detection and the fine localization. During the coarse detection...
This paper presents a robust method for facial shape and texture reconstruction based-on the model of polyhedron and the technology of photometric stereo. Using the continuity restrictions and error-reduced operator, the presented method can overcome the influence of shadow and highlight. First, we reconstruct the 2.5D shape and texture of human face by solving a linear equations system established...
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