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2011 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference, CSQRWC 2011

作者： Peng, Wenbiao Liang, Huijun Yi, Qinglin College of Electrical Engineering and Renewable Energy Institute of Intelligent Vision and Image Information China Three Gorges University Hubei 443002 China Research Center of the Geological Disasters Engineering Prevention and Control China Three Gorges University Hubei 443002 China

ISBN: (纸本)9781424497904

In general, emergency satellite commanding and consultation system should include the commanding system, the consultation system, the mobile communication system, the microwave transferring systems and the information processing systems. This paper gives the system design which is a hybrid communication network working as a star network or a building on-demand network. Using of intelligent satellite communication network - Viper sat system, a variety of services working in the field can access into the commanding center network, including telephone switching system, video conference system and integrated services data communications network. The system should not only improve the ability of the rapid response, the commanding and controlling, the dealing with of the emergency events at all levels departments, but also can provide the site information and the decision-making advice timely and safely,, so it is efficient to meet the needs of their work on emergency management. By the way, all the equipment and related integrated products in the system has been tested field in reliability, practicality, portability, and so were able to meet the demand. © 2011 IEEE.

关键词： Mobile telecommunication systems

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Terrain Simplification Research in Augmented Scene Modeling

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Journal of China University of Geosciences 2001年第4期12卷 351-355页

作者： Ming Delie You Kefei Tian Jinwen Liu Jian State Key Laboratory for image Processing and intelligent control, institute for Pattern Recognition and Artificial Intelligence , Huazhong University of Science and Technology , Wuhan 430074 Wang Guangju State Key Laboratory for Image Processing and Intelligent Control Institute for Pattern Recognition and Artificial Intelligence Huazhong University of Science and Technology Wuhan 430074 Faculty of Information Engineering China University of Geosciences Wuhan 430074

Augmented reality is the merging of synthetic sensory information into a user's perception of a real environment. As one of the most important tasks in augmented scene modeling, terrain simplification research has gained more and more attention. In this paper, we mainly focus on point selection problem in terrain simplification using triangulated irregular network. Based on the analysis and comparison of traditional importance measures for each input point, we put forward a new importance measure based on local entropy. The results demonstrate that the local entropy criterion has a better performance than any traditional methods. In addition, it can effectively conquer the 'short-sight' problem associated with the traditional methods.

关键词： augmented reality scene modeling terrain simplification triangulated irregular network importance measures local entropy.

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Gravel image Segmentation in Noisy Background Based on Partial Entropy Method

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中国地质大学学报(英文版) 2000年第1期11卷 92-94页

作者： Wang Guangjun Tian Jinwen Chen Zhenyu Liu Jian Wu Guoping State Key Laboratory for Image Processing and Intelligent Control Institute for Pattern Recognition and Artificial Intelligence Huazhong University of Science and Technology WuHan 430074 Faculty of Information Engineering China University of Geosciences Wuhan 430074

Because of wide variation in gray levels and particle dimensions and the presence of many small gravel objects in the background, as well as corrupting the image by noise, it is difficult o segment gravel objects. In this paper, we develop a partial entropy method and succeed to realize gravel objects segmentation. We give entropy principles and fur calculation methods. Moreover, we use minimum entropy error automaticly to select a threshold to segment image. We introduce the filter method using mathematical morphology. The segment experiments are performed by using different window dimensions for a group of gravel image and demonstrates that this method has high segmentation rate and low noise sensitivity.

关键词： partial entropy segmentation mathematical morphology gravel threshold filter

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Novel image retrieval method based on interest points

Novel image retrieval method based on interest points

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Congress on image and Signal Processing, CISP

作者： Fanjie Meng Baolong Guo Yiqi Fang Institute of Intelligent Control & Image Engineering Xidian University Xi'an China Xi''an Electronic Engineering Research Institute Xi'an China

Traditional interest points based image retrieval methods employed local features of interest points to describe image. The difference between local areas of interest points and the region of interest limited the retrieval accuracy. Considering the shape characteristic of interest points, this paper presented a new image retrieval method based on region of interest determined by interest points. Firstly, interest points were detected by tracking wavelet coefficients of different scales. Secondly, the convex hull of interest points was calculated to extract the region of interest in the image. Then color and shape features of the region were used to describe an image. Finally, the weighted feature distance was used to define the similarity between two images. With robustness to image rotation, translation and scale, the method makes the retrieval implementation at the object level and avoids the shortcoming of traditional methods. Lots of experiments based on an image database containing 1100 images show that the method improves the average retrieval precision over 11.1 percent, compared with other interest points based retrieval methods.

关键词： image retrieval Shape image color analysis Feature extraction Wavelet coefficients Pixel Robustness

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Asynchronous extended spiking neural P systems with astrocytes

Asynchronous extended spiking neural P systems with astrocyt...

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12th International Conference on Membrane Computing, CMC 2011

作者： Pan, Linqiang Wang, Jun Hoogeboom, Hendrik Jan Image Processing and Intelligent Control Key Laboratory of Education Ministry Department of Control Science and Engineering Huazhong University of Science and Technology Wuhan 430074 Hubei China Leiden Institute of Advanced Computer Science Universiteit Leiden Niels Bohrweg 1 2333 CA Leiden Netherlands

ISBN: (纸本)9783642280238

A variant of spiking neural P systems was recently investigated by the authors, using astrocytes that have excitatory and inhibitory influence on synapses. In this work, we consider this system in the non-synchronized (i.e., asynchronous) mode: in any step, when a neuron is enabled, it is not obligatorily fired, making a global clock dispensable. It is proved that asynchronous spiking neural P systems with astrocytes are universal (when using extended rules). The construction is uniform in the sense that the form of the modules used is independent of the simulated register machine. © 2012 Springer-Verlag.

关键词： Artificial intelligence

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A deconstruction and quantification strategy for the reversible efficiency of solid oxide cell systems in an entire cycle

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Energy Conversion and Management 2025年 340卷

作者： Guoqiang Liu Zhen Wang Jakub Kupecki Yihuan Zhou Jingxuan Peng Yulong Ji Xi Li Marine Engineering College Dalian Maritime University Dalian 116026 Liaoning China Key Laboratory of Image Processing and Intelligent Control (Huazhong University of Science and Technology) Ministry of Education Wuhan 430074 Hubei China School of Artificial Intelligence and Automation Huazhong University of Science and Technology Wuhan 430074 Hubei China Institute of Power Engineering – National Fuel Cell Research Center Mory 8 01-330 Warsaw Poland National Fuel Cell Research Center (NFCRC) University of California Irvine Engineering Laboratory Facility Irvine CA 92697-3550 USA School of Control Science and Engineering Zhejiang University Hangzhou 310007 Zhejiang China School of Electrical and Electronic Engineering Nanyang Technological University 639798 Singapore Belt and Road Joint Laboratory on Measurement and Control Technology Huazhong University of Science and Technology Wuhan 430074 Hubei China

High-temperature solid oxide cell (SOC) technology is a promising solution for peak shaving and valley filling in intermittent renewable energy microgrids due to its high efficiency and reversibility. Energy conversion is typically done in units of one charge/discharge cycle; however, a precise definition of the SOC system efficiency in continuous switching cycles has not yet been found, particularly lacking unrestricted quantification of reversible efficiency and mode scheduling optimization. This paper proposes, for the first time, the concept of generalized reversible efficiency (GRT) for SOC systems, along with a novel deconstruction and quantification strategy to solve the optimal GRT of such systems over an entire cycle. Specifically, the switching efficiency analysis is based on an energy-flow model of the reversible SOC system, which incorporates a secondary heat recovery process. An algorithmic strategy consisting of an improved decomposition-based multi-objective differential evolution algorithm is designed to optimize GRT under multiple constraints. Results indicate that GRT can be converted into cycle P2G2P (Power to Gas to Power) in any direction. The global maximum GRT is around 60.4%, occurring at the lower point of the medium capacity (denoted as γ , γ ≈ 160). The optimal GRT decreases with increasing γ , exhibits a trade-off with the discharge efficiency, and is affected by thermal dissipation and internal energy losses, especially during discharge.

关键词： Multiobjective optimization

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A Bi-level image Segmentation Framework Using Gradient Ascent 12th

A Bi-level Image Segmentation Framework Using Gradient Ascen...

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12th International Conference on Genetic and Evolutionary Computing, ICGEC 2018

作者： Li, Cheng Guo, Baolong Guo, Xinxing Yang, Yulin Institute of Intelligent Control and Image Engineering Xidian University No. 2 South Taibai Road ShaanxiXian China School of Aerospace Science and Technology Xidian University No. 2 South Taibai Road ShaanxiXian China

ISBN: (纸本)9789811358401

In order to solve the problem of under-segmentation in traditional superpixel methods, a new image segmentation framework is proposed, which is based on gradient ascent including Simple Linear Iterative Clustering (SLIC) superpixels and watershed algorithm. First, SLIC method is adopted to generate uniform superpixels, which are then determined whether under-segmentation occurs by a homogeneity criterion. In heterogeneous regions, an adaptive watershed algorithm processes a more precise division based on luminance histogram. Experimental results show that the bi-level framework has good performance on detail-rich regions, without significantly increasing the time complexity compared with conventional SLIC. © 2019, Springer Nature Singapore Pte Ltd.

关键词： Watersheds

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Efficient VLSI architecture for multi-dimensional discrete wavelet transform

Efficient VLSI architecture for multi-dimensional discrete w...

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MIPPR 2005: SAR and Multispectral image Processing

作者： Xiong, Cheng-Yi Tian, Jin-Wen Liu, Jian College of Electronic Information Engineering South-Center University for Nationalities Wuhan 430074 China Institute of Pattern Recognition and Artificial Intelligence Key Laboratory of Education Ministry for Image Processing and Intelligent Control Huazhong University of Science and Technology Wuhan 430074 China

Efficient VLSI architectures for multi-dimensional (m-D) discrete wavelet transform (DWT), e.g. m=2, 3, are presented, in which the lifting scheme of DWT is used to reduce efficiently hardware complexity. The parallelism of 2 m subbands transforms in lifting-based m-D DWT is explored, which increases efficiently the throughput rate of separable m-D DWT. The proposed architecture is composed of m2m-1 1-D DWT modules working in parallel and pipelined, which is designed to process 2m input samples per clock cycle, and generate 2m subbands coefficients synchronously. The total time of computing one level of decomposition for a 2-D image (3-D image sequence) of size N2 (MN2) is approximately N2/4 (MN2/8) intra- clock cycles (ccs). An efficient line-based architecture framework for both 2D+t and t+2D 3-D DWT is first proposed. Compared with the similar works reported in previous literature, the proposed architecture has good performance in terms of production of computation time and hardware cost. The proposed architecture is simple, regular, scalable and well suited for VLSI implementation.

关键词： VLSI circuits

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A fast VLSI architecture for two-dimensional discrete wavelet transform based on lifting scheme

A fast VLSI architecture for two-dimensional discrete wavele...

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2004 7th International Conference on Solid-State and Integrated Circuits Technology Proceedings, ICSICT 2004

作者： Xiong, Chengyi Tian, Jinwen Liu, Jian Institute of Pattern Recognition and Artificial Intelligence Key Laboratory of Eduaction Ministry for Image Processing and Intelligent Control Huazhong University of Science and Technology Wuhan 430074 China College of Electronic Information Engineering South-Center University for Nationalities Wuhan 430074 China

This paper proposes a novel fast architecture for two-dimensional discrete wavelet transform by using lifting scheme. The parallel and embedded decimation techniques are employed to optimize the architecture, which is mainly composed of two horizontal filter modules and one vertical filter module, working in parallel and pipeline fashion with 100% hardware utilization. The architecture is designed to generate two outputs at one working clock cycle, with every two subbands coefficients alternately. The total time of computing J levels of decomposition for N×N image is approximately 2N2(I-4 J)/3 clock cycles. In comparison with the other devices reported in previous literature, the design has many advantages including lower hardware complexity and area and power efficient. The design is also fast, regular and simple, as well as well suited for VLSI implementation. © 2004 IEEE.

关键词： VLSI circuits

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A Multi-Level Thresholding image Segmentation Based on an Improved Artificial Bee Colony Algorithm 2nd

A Multi-Level Thresholding Image Segmentation Based on an Im...

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2nd EAI International Conference on Robotic Sensor Networks, ROSENET 2018

作者： Xia, Xingyu Gao, Hao Hu, Haidong Lan, Rushi Pun, Chi-Man The Institute of Advanced Technology Nanjing University of Posts and Telecommunications Nanjing China Department of Computer and Information Science University of Macau China Beijing Institute of Control Engineering Beijing China Key Laboratory of Intelligent Processing of Computer Image and Graphics Guilin University of Electronic Technology Guilin China

ISBN: (纸本)9783030177621

As a popular evolutionary algorithm, artificial bee colony (ABC) algorithm has been successfully applied into the threshold-based image segmentation problem. Based on our analysis, we find that the Otsu segmentation function is separable which means each variable is independent. Due to its one-dimensional search strategy and relative power global but poorer local search abilities, ABC could find an acceptable but not precise segmentation results. For making more precise search and further enhancing the achievements on image segmentation, we propose an Otsu segmentation method based on a new ABC algorithm with an improved scout bee strategy. Different from the traditional scout bee strategy, we use a local search strategy when a bee stagnates for a defined value. The experimental results on Berkeley segmentation database demonstrate the effectiveness of our algorithm. © 2020, Springer Science and Business Media Deutschland GmbH. All rights reserved.

关键词： image segmentation

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