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In this paper, we propose a novel medical registration approach based on minimal spanning tree. The proposed approach has the following contributions. (1) Compared with single type of feature points, we extracted corner-like and edge-like points from image, and added a few random points to cover the low contrast regions. (2) Instead of fixing the multi-feature points in the whole procedure, they are...
In this paper, the problem of robust filter design based on network is investigated. Using Lyapunov-Krasovskii functional and free-weighting matrix approach, the criteria for robust H∞ performance analysis of the filtering-error systems are proposed by reserving all terms in the derivative of Lyapunov-Krasovskii functional and dealing with the different parts of uncertainties of the sestems separately...
A semi-fragile watermarking algorithm for copyright protection and content authentication is proposed in this paper. The features of the proposed algorithm are as follows: 1) The watermark depth can be adaptively adjusted according to local audio character, enhanced the robustness of digital audio watermark ; 2) The copyright protection and content authentication for digital audio can be utilized...
Webpage based information hiding technology uses a webpage as the cover object. The research of this area has led to several different techniques, which can be broadly classified into embedding invisible characters based, switching the uppercase-lowercase states of letters in tag based, and altering the order of attributes based. Based on the attributes order, a scheme of information hiding is presented...
Vision-based automatically landing is important for micro Unmanned Aerial Vehicles (UAVs). Horizon is a very useful clue. Most of the existing solutions for the problem can get accurate results in clear weather. However, for some images shoot in extreme environmental conditions like foggy or cloudy sky these methods are difficult in identifying the horizon correctly. In this paper, we propose a robust,...
This paper presents a new semi-fragile watermarking algorithm for audio authentication, which takes full advantage of scrambing algorithm. Watermark scrambling algorithm can dispel the pixel space relationship of the binary watermark image. After scrambing, the white pixels and black ones of original watermark image are comparatively orderliness, which is robustness against signal processing and fragility...
Aiming at WM method lacking of completeness and robustness, which was presented by Lixin Wang, fuzzy system is set up by data mining in this paper. Rules base and fuzzy system produced by data mining can ergodic all the fuzzy subspace, which insures the completeness of rules base. Otherwise, rules produced by data mining are elected out in the whole sample data, but WM method is a result only from...
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