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In medical image processing, interactive image segmentation is an important part, because it can obtain accurate segment results with less human effort compared with manual scribing. We proposed an improved algorithm of maximal similarity based region merging, compared with the algorithm proposed in [3], our algorithm use SLIC superpixels segmentation to obtain presegmented regions, using SLIC superpixles,...
This paper provides an applicable procedure to introduce wind power generaton into a weak power system for readers considering the fluctuation of electric current so as to determine the limit capacity. The static and dynamic condition of a Wind Power Turbine (WPT) relates to terminal output and connection system are detailly explained. Characters of inductive generator under sudden variation of wind...
This paper presents the controlling system of Pico Hydro Power Plant (PHPP) and Micro Hydro Power Plant (MHPP) for the defined Region based on the developmental project under doing and being to do. Controller for PHPP is based on the direct control method that is widely used in pico degree hydro system. Controller for MHPP is based on the two kinds of isolated operation method and network connection...
The performance of DFT (Discrete Fourier Transform) algorithm about frequency estimation is obviously declined, because the DFT spectrums have the problem of energy leakage and picket fence effect. Aiming at this problem, an adaptive algorithm based on FFT for frequency estimation is presented. In this paper we analysis the performance of Rife algorithm and point out that the perfor mance is poor...
The S-transform can't both have the time and frequency resolution at the same time. So in order to solve this problem, this paper proposes a new joint algorithm for parameter estimation of frequency-hopping signals. Frist, S-transform with short window is obtained. Then, accurate estimation of hopping time is extracted from the time-frequency ridge of S-transform. Finally, using the FFT (Fast Fourier...
The growing demand for higher trustworthiness of software poses an unprecedented challenge to the software industry. Software is the outcome of the software process. Software trustworthiness is highly dependent on the software process. To combine the trustworthiness in the software process, we propose a formal method for trustworthy software process composition. In this method, trustworthy processes...
With the popularity of information and content items that can be cached within ISP networks, developing high-quality and efficient content distribution approaches has become an important task in future internet architecture design. As one of the main techniques of content distribution, in-network caching mechanism has attracted attention from both academia and industry. However, the general evaluation...
Classification is one of the most important applications in the field of remote sensing. How to improve the accuracy of classification is the critical topic that has long obsessed the researchers. In this paper, a fusion method based on a synergic use of hyperspectral data and Polarimetric SAR (PolSAR) data is presented. This method consists of two main parts, feature-level fusion and decision-level...
Time delay estimation (TDE) is an important topic in cooperative diversity system. In this paper, a new method for time delay estimation of HF fading signal in a-stable distribution noise environments is provided. A fading signal processing model in impulsive noise environments is discussed in the paper, and a new TDE algorithm based on theory of a-stable distribution is also developed. Computer simulation...
In this letter, a new compact antenna design with triple-sense circular polarization (CP) is presented for ultra-wideband (UWB) communication applications. The UWB property is obtained by utilizing a compact complementary planar monopole. In order to achieve multiband CP waves on base of UWB operation, the measurement has been taken such as etching a T-shaped slit in the antenna ground and adding...
In this paper, compact ultra-wideband (UWB) antenna with controllable notched bands is proposed for UWB communication applications. The antenna utilizes co-directional complementary split ring resonator (CSRR) to achieve dual suitable notched bands in small enough size. The center frequencies of the notched bands can be electronically tuned by changing the effective electrical length of the CSRR,...
A compact ultra-wideband (UWB) antenna with dual band-notched characteristics is presented. The proposed antenna consists of a folded fork-shaped radiator and a modified ground plane. The modified ground plane with trapezoid shaped slots on its top edge effectively increases the bandwidth of the proposed antenna. To avoid potential interferences, the arms of the forked-shaped radiator are folded to...
Seam-line removal is very important in image mosaicing. Using traditional mosaicing methods to process the three-dimensional (3D) images by cone beam computed tomography (CBCT) usually produces obvious seams because of its high resolution and isotropic features. In this paper, we present a seam line removal method on mosaicing of CBCT images is presented. This method first takes makes a linear mapping...
The parallel database system (PDS) owns high performance and high availability and is suitable for mass data storing and processing. However, data loading performance is a bottleneck in PDS. To improve the data loading performance, this paper proposes an optimized load algorithm based on cloud platform which can promote the speed of load process. The paper gives the algorithm description, elaborates...
The design, fabrication and measurement of multi-arm spiral metamaterial are introduced in this paper. The parameter retrieval results and transmission measurement both validate that the multi-arm spiral resonator (SR) have a magnetic and an electric response in the lower and higher frequency regions, which provide us a more convenient way to construct the dual-band left-handed metamaterial (LHM)...
• Civil Aviation Administration of China for providing the Flight Schedule Database □The National key laboratory of CNS/ATM for providing the aviation domain knowledge to obtain the importance of CWs
Currently, photographic film is the most commonly used medium for viewing medical images in hospitals. However, as digitalized medical images need to be printed on photographic film first, such kind of viewing pattern has an extremely limited use A homogeneous white light source is also needed to observe the anatomic structure clearly. Such observation pattern is very limited to the circumstances...
The optimization of air route network (ARN) is an effective method to improve the transmission ability of air traffic flow. One crucial issue in optimizing the national ARN is the crossing waypoints location problem (CWLP), which determines the airspace capacity, airspace safety and flight efficiency. However, the existing works always focus on one or two aspects regardless of the airspace capacity,...
Aiming at the current disadvantages in the maintenance for armored vehicle command control and communication system, this paper introduces the connotation, structure, function, technical attributes and technical elements of PHM. And it proposes that adopting PHM technology in modifying current maintenance support mode is an effective way. The PHM system for armored vehicle command control and communication...
As the traditional software processes play an important role in improving the quality of software products, service processes are also essential to the service quality in the SaaS model. However, the systematic study about service processes is less at present. So, according to the present situation in which the existing software process theory can't efficiently support SaaS service processes under...
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