In Wireless Sensor Network (WSN), the ability to avoid collision directly impacts on node energy consumption and network performance. Based on introduction of CSMA/CA protocol, the paper laid emphasis on shortcoming o...
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The object-oriented simulation software of an adaptive optics system is used to evaluate the performance of the adaptive optics system. The software includes distorted wavefront correction and turbulence simulation. A...
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This paper presents an industrial temperature measuring and monitoring system, which is based on 89C51 single chip microcontroller, and details the comparison between Formula method and Look-up Table method whose new ...
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According to the human visual sensitivity characteristics to spatial depth changes, this paper studies the just noticeable depth difference (JNDD) of the detail perception. The JNDD model is proposed through derivatio...
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According to the human visual sensitivity characteristics to spatial depth changes, this paper studies the just noticeable depth difference (JNDD) of the detail perception. The JNDD model is proposed through derivation and analysis on a large number of subjective experiments. Then, a trilateral filtering algorithm is presented based on the model to suppress the unperceivable depth details and to minimize the rendering artifacts due to the inaccurate depth estimation. Subjective and objective experimental results prove that the proposed trilateral filtering algorithm for depth map based on JNDD model can smooth the object edges and reduce the edge noise in the synthesized view while reduce the bit rates.
After the discussion of field research scientific significance, the system quality of service (QoS), reputation mechanisms and reputation incentive were reviewed respectively. Finally, the issue remains in this area w...
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After the discussion of field research scientific significance, the system quality of service (QoS), reputation mechanisms and reputation incentive were reviewed respectively. Finally, the issue remains in this area were summarized after the overseas research review. After years of study, it has been some progress in the field of E-services reputation mechanism, the problem forced to be resolved are inconsistent definitions of trust, lack of feedback incentive, poor security of trust model, high complexity of trust model to achieve. Therefore, problems such as peer-to-peer (P2P) E-services QoS evaluation model, two-way trust model integrated with QoS and reputation incentives, trust model security, are becoming the focus and main direction of our future work.
In the kernel principal component analysis (KPCA) and manifold learning to reduce the dimensionality, the training set plays a very important role. In this paper, we develop a novel method to select the training sampl...
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To detect the security threat in the Internet of Things (IoT), the mechanisms of artificial immune system are applied to the IoT environment. The application method of immune theory to the IoT environment is construct...
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Satellites are playing more and more important roles in human society. With satellites being launched into space, space debris number also increases. They are becoming great risks to the satellites. Therefore, space s...
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With the development of the NAND-Flash technology, NAND-Flash based Solid-State Disk (SSD) has been attracting a great deal of attention from both industry and academia. While a range of SSD research topics, from inte...
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For the multi-focus image, a method to distinguish the focal area and the blur pixels is proposed. The variance of the neighbor pixels of each pixel is calculated and different levels of variance with different weight...
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