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Outdoor images acquired under poor weather conditions are usually contaminated by suspended particles and aerosols in the atmosphere. These captured images easily suffer from contrast reduction, low visibility, and color distortion. In this paper, we develop a novel single image dehazing method based on large sky region segmentation and multiscale opening dark channel model (MODCM). First, a simple...
Image denoising is an integral part in computer vision, pattern recognition and medical image analysis, because images are vulnerable to noises during its acquisition, quantization, compression and transition. Moreover, Image denoising influences its follow-up tasks, such as edge detection, object segmentation, scene understanding and image interpretation. A large number of proposed algorithms have...
In this paper, we consider the RFID reader coverage problem in three-dimensional space. We propose a cube-based model to describe both the reading region of readers and the area covered by reading regions. In our cube-based model, we place a reader into a large cube, which is equally cut into n small cubes. Then, we can use a mathematical three-dimensional matrix to model the reading region and covered...
The k-nearest neighbors(k-NN) categorization method is simple and effective in text categorization. The uncertainty of training documents and classes border would appear in multi-class categorization, because of the overlapping of classes and the lack of features. But the conventional k-NN method is unsuitable to deal with this uncertainty. To this problem, a k-NN text categorization method based...
In this paper, a new method of tracking the target of uniform circular movement is proposed by using the pure range sequence of asynchronous measurement from three stations. By analyzing the mathematical model of the circular movement in the single station space, the model of the target circular movement and the computing model of the parameter track are established; The target coordinate computing...
Based on the characteristics of many factors with uncertainties in flood control, multi-objective fuzzy optimal theory and method is introduced, and multi-objective fuzzy optimal selection model of flood control's projects of storage and detention basin is established, and the model is applied in actual flood control, the problem of multi - objective decision system affected by certain factors and...
In this paper, a new stochastic model based on cellular automata is established to simulate the occurrence and development of Schistosoma japonicum (S. japonicum) infection in an endemic population. We included the process of the pathogen invasion from exposure to worm development and till worm death when the infection is cleared in the model. We further utilized the model to predict the prevalence...
A method to simulate the dynamics of public opinion formation with pheromone is proposed. It is assumed that an individual would sense and deposit pheromone during its opinion formation, and it changes and updates opinion basing on the transition probability determined by the distribution of pheromone. Using the proposed model, simulations with several sets of parameters are carried out. The results...
In this paper we consider the problem of detecting of primary users (PU) including transmitter and receiver in cognitive radio (CR) networks. In ordinary situation, it is difficult to detect whether the primary receiver exists even where the receiver is. In this work we propose a novel system design combined with CR mobile station and base station to cooperatively detect the location of primary transmitter...
An action can be represented as a sequence of salient postures. Effective modeling of the salient postures is critical for robust action recognition. This paper proposes to characterize the salient postures using a set of the spatio-temporal interesting points (STIPs). Local features are extracted at each STIP and the statistical distribution of the features for each salient posture is further modelled...
In this paper, with dynamics analysis on whole vehicle and hydraulic retarder, the dynamic simulation model of engine and hydraulic retarder continual braking on sloping hillside of tracked vehicle is built by using Simulink software. The simulation results show that when engine and hydraulic retarder continual braking is used opportunely, it can meet the demands for tracked vehicles to safely travel...
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