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In this paper, SIFT algorithm is combined with AdaBoost algorithm, and a method of feature matching based on multi-pose face is put forward. Firstly, the face region is extracted from multi-pose face images by AdaBoost. Secondly, SIFT characteristic vectors of the main regions are matched. The images of the ORL face DB are used in this paper, and some pictures taken in the experiment are used too...
A synthetic registration method based on dynamic credibility is proposed to investigate infrared images and their visible light counterparts. Mutual information and alignment metric are adopted together with edge detection and equalization to form a synthetic method composed of six individual metric. Dynamic credibility is put forward to measure the correctness and the essentiality of the six methods...
The power-supply sequence timing requirements of TMS320DM644x SoC and the main features of the buck DC-DC converter TPS54310 are presented. There is the circuit design, simulation and verification of the power supply based on TPS54310 for TMS320DM644x SoC through the theoretical analysis. The results show that the power supply has the advantages of high conversion efficiency, low power consumption,...
A multivariate self-adapting decoupling control method based on CMAC and PID was proposed in this paper. The control strategy utilizes PID controller and CMAC to combine a composite controller. Using the composite controller, the strong coupled time-varying system can be decoupled and controlled easily. The doubly fed hydro-generator system is a novel type of hydraulic generation system. Considering...
With the continuous development and applications of the computer technology and network technology, the traditional laboratory was in virtue of this powerful tool of modern information technology to continuously reform and innovation, development and improvement. This paper describes a idea of network architecture in university laboratory in order to realize circuit experiments to achieve the network...
A network virtual laboratory system for digital signal processing experiments based on LabVIEW is introduced. The system provides the users with virtual reality of experimental environment, convenient operation and powerful simulation capability. By combining database and network technology, a network virtual experiment teaching management system is developed. The system realizes the sharing of hardware...
In this paper, the Co-decoding principles of Hamming codes is introduced in brief firstly, on the basis of which, a kind of efficient software error-correcting algorithm is presented . Then the algorithm is verified feasible by use of Visual Basic compiled program .The results show that it is a more simple and flexible to achieve channel coding with the software coding than with hardware.
A Web-based virtual laboratory system for electronic circuit experiment was introduced firstly. The paper pointed out that in such a system how to make multi-client virtual electronic circuit experiments in real-time by analysis. The system introduces segment-simulation mechanism and circuit status persistence mechanism in details. Test results show that the continuous simulation of the electronic...
A new scheme is put forward to realize robust and real-time object tracking by CamShift combining color information and improved LBP. Continuous adaptive mean shift (CamShift) algorithm is a good choice for object tracking with its high speed and insensitiveness to the rotation and size of the target, but it is influenced by environmental lights and color information. Local binary patterns (LBP) is...
Based on the theory of semianalytical thermal analysis, temperature and thermal distortion held, additional optical path difference (OPD) and thermal lens within a diode-end-pumped Nd:YAG microchip crystal with back surface cooling were investigated. Expressions of temperature and thermal distortion field, additional OPD and thermal lens were obtained through the analysis on working characteristics...
The water level fluctuation in surge tank causes low- frequency fluctuations of unit's output power and frequency, which adversely affect the response of hydro turbine governing system. Turbine characteristic is one of the most important factors affecting unit's power and frequency during the governing. In this paper, based on the linearized model, the effect of turbine characteristic on the response...
In the field of hydraulic turbine computational fluid dynamics (CFD) is routinely used today in research and development as well as in design. A special attention is paid to the hydraulic turbine stability with the increasing of unit power and size. In order to get solutions to the stability problem an unsteady flow analysis is necessary. Different numerical schemes are discussed for the rotor-stator...
Experiments were performed in a TGA apparatus to investigate the pyrolysis properties of one kind of anthracite from Leiyang Power Plant, which has been used by several boilers. The effects of pulverized coal particle size, heating rate and final pyrolysis temperature on the volatile release property are presented. Experimental results confirmed that high heating rate could promote the volatile release...
Based on the shape of landscape, a practical algorithm for detecting human face is put forward. This method takes a human face as a special kind of landscape, so digital elevation models (DEM) could be employed to detect candidate human faces. We first extract features of human faces by means of three kind of curvatures of faces (general Gaussian curvature, section curvatures and tangent curvatures)...
Multi-criteria fuzzy clustering problems are kind of common problems in decision-making and data mining. A method for modeling multi-criteria problems based on vague set theory is used in this paper. Each object in a universe of discourse is represented by a vague set in this model, then similar objects can be clustered into a subgroup after similarity measure between corresponding vague sets. The...
An automatic extraction method of container identity codes based on mathematical morphology operation, region analysis and projection transformation is proposed. With different kinds of noises on the image, the container code can hardly be extracted precisely. To decrease the influence the noise and detect the code coarsely the image is filtered by mathematical morphological operators. Then, closed...
A general and efficient face feature extraction approach is presented which utilizes principle discriminant information of human faces. In order to get rid of redundant information and meanwhile reduce computational burden, we first compute the nonzero feature space of training set scatter matrix, and then perform a global search on it to seek out the most valuable discriminant information of faces...
A formulated framework of tolerance relation in the applications of social activities is presented. The formulation can not only describe the activity degree of entities in a society, but also the average cost and the maximum cost at which one completes a task through various social relations. The algorithms for computing the maximum tolerance classes, the activity degree, the average cost and the...
Developing the color classification with mixed method in the YUV color space, presents a new algorithm of searching object robot-soccer called half-chord method which obviously reduces the calculating amount in the process of recognition. The validity of the algorithm has been proved on the experimentation of the RoboCup F180. It can faster recognize the object, guaranteeing the recognition precision.
When algorithms extracting and recognizing characters from text image is devised, the time loss and recognizing quality are two of the most important properties taken into account. To achieve high recognition performance in both of them, we provide a simple but rapid and efficient method to extract character features, and then a structure called hierarchical radial basis function (RBF) neural networks...
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