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Due to the non-directional of the single-station electric-field monitor, single-station electric-field monitor needs to be improved by using the networking atmosphere electric-field monitors. We used the networking atmosphere electric-field data and put forward a method that can solve the problem the single-station electric-field monitor has. Quartic spline interpolation is used as the method and...
The NURBS-based isogeometric analysis (IGA) has been applied to wide classes of engineering problems due to its accurate geometric description. One of the major concerns with IGA is finding an efficient way to treat boundary conditions. Many studies show that the results can maintain accuracy, where the boundary conditions are enforced by the penalty method. However, the inappropriate selection of...
Life prediction and failure analysis are necessary and critical for the aeronautical structures. In this paper, a general method is proposed to predict the fatigue life of smooth and circular-hole specimens using the equivalent initial flaw size (EIFS) concept. The proposed methodology is based on a previously developed method. Fatigue limit and threshold stress intensity factor are used to predict...
In order to improve the quality of decoded images in fractal image coding, a novel method by making use of a modified image is proposed in this paper. Since the degradation of decoded images in fractal coding mainly comes from the poor self-similarity of the input image, a modified image that satisfies good self-similarity and approximates the original image well is constructed. After transforming...
With many observations, we find that there exists a logarithmic relationship between the average collage error (ACER) and the quality of decoded images. By making use of the ACER in the encoding process, the quality of decoded images can be predicted without fractal decoding. In order to shorten the prediction process further, an accelerated version of the prediction method is proposed. By theoretical...
Dynamic vision sensor (DVS) as a novel type of visual sensors can detect a moving object in a fast and cost effective way by outputting events on edges of the object. This paper proposes a body part localization method using structured output Deep Belief Network (s-DBN) to label the body parts in block of pixels in very fast fashion. Experiments show that our proposed algorithm achieves pixel accuracy...
A practical high-performance waveguide slot array antenna in millimeter wave for monopulse tracking application is presented. At first, a novel compact architecture is developed to lessen the mechanical layers of the array. Several design parameters, including waveguide dimensions, wall thickness and slot width, are chosen to be helpful in dip-brazing process. Then the slot admittance, which taken...
A practical high-performance waveguide slot array antenna in millimeter wave for monopulse tracking application is presented. At first, a novel compact architecture is developed to lessen the mechanical layers of the array. Several design parameters, including waveguide dimensions, wall thickness and slot width, are chosen to be helpful in dip-brazing process. Then the slot admittance, which taken...
We propose a graph matching based approach to identify multiple people in an indoor localization system by using the infrastructure camera along with microphone and speaker in a smart phone. Given a frame captured by the camera, an attributed graph is composed by considering each person in the frame as the vertice and the distance between people derived from the locations provided by the camera as...
Reconstruction, which is the core of compressive sensing (CS), can be implemented by l0 norm minimization. In practice, l0 norm minimization is a NP-hard problem that requires exhaustively listing all possibilities of the original signal and is difficult to achieve by traditional algorithms. This paper proposes a signal reconstruction algorithm combining genetic algorithm with simulated annealing...
Laser scanning microscopy is a powerful tool for analyzing the structure and function of biological specimens. Although there exist numerous commercial laser scanning microscopes, the lack of supporting software system poses a great challenge to three dimension (3D) imaging in the study of two-photon excitation laser scanning microscopy (2PLSM). This paper proposes a complete framework for developing...
We investigate three EDFA only amplification architectures for 100G unrepeatered transmission. With > 4 dBQ margin, pre-amplifier only, booster only and both booster and pre-amplifier amplifications can achieve 130, 150 and 220 km reach respectively.
With continuing miniaturization and more prevalent use of Ball Grid Array (BGA) packages in the microelectronics industry, the mechanical strength of Printed Circuit Board Assemblies (PCBAs) with BGA packages is becoming very critical. In a variety of applications ranging from smart phones to high end switches and routers, the mechanical robustness of PCBAs is becoming the key differentiator in product...
The image editing method based on manifold preserving demonstrates its stunning effect, but with the size of the image increased, the time complexity make this method impractical. In this paper, we proposed a method improving manifold preserving image editing by separating the image into superpixels. Firstly, the image is divided into a set of superpixels. Secondly, a mean target color value is computed...
Because of the extensive amount of waste water that is discharged during its processes, conventional carpet printing is a big polluting industry. In this paper, we propose a new digital carpet printing method based on traditional textile-printing technology. Our method aims to remove limitations in carpet design and eliminate industry pollution. A series of measures are performed to raise the permeability...
Data deduplication can reduce cost and enhance throughput in backup and archiving systems. Recently, it becomes increasingly popular to apply this technique in primary storage systems, where data is actively used by enterprise business applications. However, the state-of-the-art deduplication systems for primary storages mainly provide offline solutions, which require sufficient time-window, additional...
Electrically powered wheelchair controllers are crucial to the reactiveness of wheelchairs, but most of current controllers failed to deliver their proper functions due to unreliable data processing and open-loop controller. In the present study, we designed a new controller which uses a double CPU mode with two STM32 chips. The first CPU is responsible for collecting and processing the signals of...
The traditional content-based image retrieval technology can't map underlying image features to semantics, leading to a “semantic gap” between the needs of users and the retrieval results. In this paper, we implement a color image retrieval system based on color emotions. By analyzing the distribution of color emotion histograms of the same theme image, we build a similarity calculation model, and...
The texture feature is an important information for hyperspectral image classification. In this study, we extend the traditional 2D GLGCM(gray-level gradient cooccurrence matrix) into 3D GGGTF(gray-gradient-gradient tensor field), which can extract gray and gradient texture features of hyper-spectral volume data simultaneously. A few statistical features are extended into third-order forms in order...
Compressive sensing of hyperspectral image (HSI) faces the difficulties of complex computation and much information redundancies. In this paper, we propose a highly-efficient compressive sensing framework including sampling method and its corresponding reconstruction algorithm for HSI. Kronecker product is used to generate the sparsifying basis and measurement matrices. Both the data in spatial dimensions...
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