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With the dramatic growth of using video cameras for applications of public surveillances in recent years, detection of public threats or security issues on surveillances becomes possible nowadays. How to identify anomalous behavior from surveillance videos has been identified as an effective manner for detecting critical events in the public avenue. We in this paper discuss a new application paradigm...
The data communication is becoming more and more rapidly and conveniently due to the information technology and Internet expeditious development. Therefore, the protections of information security and integrity are becoming very important in the network transmission. And the data hiding schemes are raised in the image research. The image data hiding technique is to embed secret message into a cover...
The test system of stress wave signal about stealing oil was briefly introduced. And basic principle of lifting scheme was presented. According to test data, the characteristics of stealing oil were analyzed in time and frequency domains. Stealing oil signal usually contains high-frequency noise and low-frequency interference. According to the characteristics, the de-noising algorithm based on lifting...
Nowadays China has speeded up urbanization, urban land use occurred in areas of significant change. In order to obtain land cover information speedily and correctly, many methods from data mining are used to classify the remote sensing image. In recent years, using decision trees (DTs) to classify remotely sensed data has increased, due to the algorithm running fast and making no statistical assumptions...
In this paper, the application of independent component analysis (ICA) for video frame sequence processing is investigated and a novel scheme based on ICA for detecting and locating text in video is proposed. The author analyses the advantage of novel scheme over current scheme, the results of simulation experiment illustrate that analysis is correct and novel scheme is more effective than current...
In Monte Carlo simulations, the more particles you trace, the more accurate results you get. While recent improvements in hardware and software have feasible on personal computers, it can still take hours, even days to achieve a statistically meaningful result. Geant4 is a kind of Monte Carlo simulation tool solving the problem in nuclear physics. It can be used to accurately simulate the passage...
The self-designed Abrasive Flow Machine and Clamp are introduced in this paper. The technology issues of abrasive flow medium selection and process parameters settings are discussed. We conducted the experiment on the small hole with diameter of 0.15 mm. Through the experiment, the best process parameters of the Abrasive Flow Machining of small hole are obtained.
Monthly investigation is executed during April 2006 to May 2007, focusing on the abundance and composition of phytoplankton in a large (300 km2) shallow (mean depth 4.4 m) eutrophic lake (Lake Dianchi). The presence of phytoplankton in northern bay was the highest, while that in the southern part the lowest, and center part and northern part conditions represented an intermediate state between these...
The process of coal powder burning in the boiler is a complex and unstable suspended combustion process, so the flame image segmentation and tracking are quite difficult. In this paper, a flame image automatic threshold segmentation and tracking algorithm based on YCbCr space is proposed. The proposed algorithm uses YCbCr color space to separate the luminance from the chrominance more effectively...
Rapid urban expansion in the surrounding area is a major reason of ecological environment deterioration. This research adopted SLEUTH model and imported the result of ecological environment analysis as the excluded layer by building multi-factor comprehensive decision model, therefore, realized a loose couple of urban growth model and ecological environment analysis. The result indicates that this...
Two dimensional equations are derived for multiferroic circular cylindrical panels with small aspect ratio. The displacement, electrical potential and magnetic potential are assumed to be of zero-order of the radial thickness. The frequency equation is presented for a multiferroic cylindrical panel composed of CoFe2O3 and BaTiO3 with four edges simply supported. Numerical examples show clearly the...
Given a set of trajectories D, a query object (point or trajectory) q, and a query interval T, a mutual (i.e., symmetric) nearest neighbor (MNN) query over trajectories finds from D within T, the set of trajectories that are among the k1 nearest neighbors (NNs) of q, and meanwhile, have q as one of their k2 NNs. This type of queries considers proximity of q to the trajectories and the proximity of...
Previous studies have presented convincing arguments that a frequent pattern mining algorithm should not mine all frequent patterns but only the closed ones because the latter leads to not only a more compact yet complete result set but also better efficiency. However, most of the previously developed closed pattern mining algorithms work under the candidate maintenance-and- test paradigm, which is...
This paper puts forward a domain adaptation problem that has not been studied well. For corpus-driven TTS systems, domain adaptation is realized by adding a small amount of domain-specific speech that will provide the maximum increase in average length of units that are used for synthesizing speech in that domain. An approach for generating optimized script for adaptation is proposed, the core of...
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