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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...
In this paper, a novel systematic and efficient approach, using the fuzzy-based Taguchi method with multiple performance characteristics index (MPCI), is employed for obtaining the robust design of an in-wheel permanent-magnet (PM) motor with both lower torque ripple factor and higher efficiency. According to the geometric parameters of the PM motor, we select the controllable factors and their levels,...
Considering the stability caused by the communication delay and the asynchronism between the plant and the controller in networked control systems (NCS), this paper develops robust H∞ guaranteed cost control for networked control systems with bounded random time-delay. First, the networked control systems are modeled uncertainty discrete system based on T-S fuzzy model. The uncertainty of time delay...
Web video databases tend to contain immense copies with the explosive growth of online videos. How to detect video copies has become an essential problem for web video storage and indexing. This paper presents an efficient Hash scheme for video copy detection. By building trajectories of Harris points from frame to frame, behavior of interest points can be expressed. Spatio-temporal persistent points...
A new feature descriptor is presented for object and scene recognition. The new approach, called CDIKP, uniquely combines the scale-invariant feature detection with a robust projection kernel technique to produce highly efficient feature representation. The produced feature descriptors are highly-compact in comparisons to the state-of-the-art, do not require any pretraining step, and show superior...
A RST-resilient watermarking scheme based on invariant features are proposed in this paper. The scale-invariant points of wavelet low-frequency sub-image are used to realize resynchronization after RST (Rotation Scale Translation) attacks. An improved HVS model is adopted to embed multiplicative spread spectrum watermark in DWT (Discrete Wavelet Transform) domain, and optimal water- marking detection...
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