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It is hard for current interactive stereo image segmentation methods to deal with large scale images with fast feedback after each interaction. In this paper, we present an interactive stereo image segmentation method. Different from current methods, our method introduces a multi-scale graph structure for fast graph cut optimization. Besides, we use GPU parallel computing to handle single instruction...
This paper proposes a watermarking algorithm for 3D meshes based on local roughness analysis. The proposed method is a robust and partition-based watermarking method. It is composed of two stages: watermark embedding and extraction. During the watermark embedding stage, the input mesh is decomposed into groups corresponding to different values of roughness, which is measured by the Laplacian of Gaussian...
The evolution of information technology and the explosive growth in Internet data have rendered traditional ways of providing information services and their infrastructure no longer appropriates. Data storage, computing and Internet services are moving toward virtualization and cloud computing. However, the performance of this network architecture needs to be examined to improve network bandwidth...
In LTE system, HTTP streaming services sometimes experience video quality deterioration because of the constraint of available wireless resources, which leads to reduce of Quality of Experience (QoE). In this paper, we propose a new scheduling scheme which is QoE-oriented from user's perceptive to improve the performance of HTTP streaming service in a LTE system. First of all, we adopt the jerkiness,...
Most researches of metamaterial absorber (MA) focused on varying the resonator and dielectric spacer to configure the absorption and resonant frequency, and the ground plane was generally considered as a perfect reflector. In this paper, we developed a method to tailor the MAs absorption by varying the conductivity of the ground plane. Our quantitative analysis reveals that with the decrease of the...
A terahertz (THz) absorber using asymmetric split ring resonators (ASRs) was designed, fabricated and characterized. As the symmetry of a split ring resonator (SRR) is broken, the trapped mode resonance is excited, which shows higher absorption and Q factor than the dipole resonance of the symmetric resonator. By displacing the gap from center by 0.5µm, an absorber with the highest measured absorptivity...
The uptake of services delivered through Software-Defined Networking (SDN) is already very high. SDN provides programmability and automatic network control, and realizes the network virtualization for sharing network resources. In this work, a dynamic resource management scheme, called EnterpriseVisor engine, which is based on the OpenFlow/FlowVisor network virtualization platform, is designed to...
Objective: To offer reference data for standardized study the clinical syndrome differentiation for the senile patients of post lumbar surgery, we study on the feature of Traditional Chinese Medicine(TCM) syndrome differentiation for the senile patients of post lumbar surgery. Methods: Adopting clinical epidemiological method, clinical investigation on 359 senile patients of post lumbar surgery was...
Improving the medical quality and guarantee the safety is the eternal theme of medical industry, which emphasizes the patient-centered and happiness-oriented. The healthcare service is not only a technological but also a high-risk industry. Since that risk exists throughout the medical work, risk prediction and management have become an important part of hospital management. The comprehensive risk...
We present a temporal contrast detection event-driven asynchronous 128×128 pixel image sensor with integrated 10-bit ADC intensity readout in 0.18 µm 6M 1P CMOS. Current-mode log-compressed readout with correlated double sampling (CDS) offset compensation provides random access to instantaneous pixel intensity over 75 dB intra-scene dynamic range. Temporal correlated double sampling in “on” and “off”...
This paper designs a wireless sensor network for road traffic information acquisition. Geomagnetic sensors of traffic state acquisition are also designed. The geomagnetic sensor can be adaptive to the surrounding changes about magnetic field and magnetic interference. Besides, it can possess traffic flow, speed and occupancy detection simultaneously and synchronously. For the research and development...
A novel method for the analysis of long-range cross-correlations and multifractality — qth-order mixed moment structure partition function (Q-MMSPF) method is proposed in this paper, and is used to investigate the multifractal cross-correlation characteristic of sea clutter data. An approach based on a new statistical index is put forward for detecting the targets in sea clutter. The experiments results...
This paper designed a circuit breaker on-line monitoring system based on S3C2440A core controller. With the high speed and high precision extended A/D, this device can sample signals on real time. It is fast, easy networking and convenient for remote data transmission by Ethernet. The embedded linux operating system, which can be cut arbitrarily and easy to translate, is used in this device. This...
In this study an Indoor Positioning System (IPS) based on intelligent fingerprint-assisted has been proposed in order to calculate the reliable reference point data and development a positioning system learning mechanism through wireless network connection. Due the change in external environment, the traditional statistical approach will require more than 150 times of learning for the reference points,...
This study proposes a Software-Defined Networking (SDN) architecture to help cloud customers receive highly efficient services in a heterogeneous cloud serving system. An application called SDNBroker is designed herein and superposed on the SDN controller by Northbound Application Programmatic Interfaces (Northbound API). When a cloud customer requests a service, the proposed SDNBroker schedules heterogeneous...
Target searching, i.e. fast locating target objects in images or videos, has attracted much attention in computer vision. A comprehensive understanding of factors influencing human visual searching is essential to design target searching algorithms for computer vision systems. In this paper, we propose a combined model to generate scan paths for computer vision to follow to search targets in images...
This paper presents a data-driven adaptive soft sensor approach to investigate the performance and optimal operation of cooling tower for energy conservation. To achieve this aim, first, the cooling tower process is characterized by an adaptive soft sensor with nonnegative garrote (NNG) variable selection procedure. Then, based on the statistics result of NNG variable selection, the effect of environment...
The changes of flow rate and heating value of blast furnace gas (BFG) make the boiler operation more like art than science. In this paper, statistics analysis methods are utilized to justify the significance of the derived variables for the thermal efficiency modeling. By employing nonnegative garrote (NNG) variable selection and auto-regression integrated moving average (ARIMA) correction, an adaptive...
A SOI technology-based micro filtration system for circulating tumor cells (CTCs) isolation and enumeration is reported; this is in contrast of using single-crystal-silicon wafers resulting in poor etching uniformity. This microsystem consists of a silicon filter enclosed with PDMS layers, a digital syringe pump, a fluorescence microscope, a digital CCD camera in combination with the CellProfiler...
In this work, we systematically investigate the nonlinear phenomenon of an electrostatic comb driven micro scanning mirror. The system governing equation is illustrated by Mathieu equation. A numerical model is built in MatLab based on the governing equation. The scanning mirror response in both time and frequency domain is simulated. Results are verified by the investigation vehicle, a fabricated...
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