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Altered hemispheric symmetry found in left-sided mesial temporal lobe epilepsy with hippocampal sclerosis (MTLE/HS) but not found in right-sided MTLE/HS

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MAGNETIC RESONANCE IMAGING 2013年第1期31卷 53-59页

作者： Lu, Jingjing Li, Wenjing He, Huiguang Feng, Feng Jin, Zhengyu Wu, Liwen Beijing Union Med Coll Hosp Dept Radiol Beijing 100730 Peoples R China Chinese Acad Sci Inst Automat State Key Lab Management & Control Complex Syst Beijing 100190 Peoples R China Beijing Union Med Coll Hosp Comprehens Epilepsy Ctr Beijing 100730 Peoples R China

Purpose: The purpose was to investigate the altered hemispheric asymmetry in patients with mesial temporal lobe epilepsy with unilateral hippocampus sclerosis (MTLE/HS). Materials and methods: This study examined the hemispheric asymmetry of regional gray matter (GM) and white matter (WM) volume among a group of 13 patients with left-sided MTLE/HS, a group of 10 patients with right-sided MTLE/HS and a group of 21 age- and gender- matched healthy controls by optimized voxel-based morphometry (VBM) based on magnetic resonance imaging. Results: Compared to healthy controls, abnormal asymmetries were detected in the left-sided MTLE/HS patients. The left-sided MTLE/HS patients had more GM asymmetries (L < R) in the temporal lobes, including the inferior temporal gyms, middle temporal gyms and parahippocampal gyms. There was significant asymmetry (L < R) in subcortical WM of the mesial temporal lobe in left-sided MTLE/HS patients. However, no significant difference was detected in terms of GM and WM asymmetry between the group with right-sided MTLE/HS and normal controls. Conclusion: We should approach hemispheric asymmetry in left- and right-sided MTLE/HS patients differently. The study also demonstrates potential future use of VBM in detecting hemispheric asymmetries and lateralization of brain functions. (C) 2013 Elsevier Inc. All rights reserved.

关键词： Brain asymmetry Magnetic resonance imaging (MRI) Voxel-based morphometry (VBM) Mesial temporal lobe epilepsy Hippocampal sclerosis

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Design and Implementation of a Biomimetic Robotic Jellyfish Based on Multi-Linkage Mechanism

Design and Implementation of a Biomimetic Robotic Jellyfish ...

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32nd Chinese control Conference (CCC)

作者： Xiao, Jundong Yu, Junzhi Chinese Acad Sci Inst Automat State Key Lab Management & Control Complex Syst Beijing 100190 Peoples R China

ISBN: (纸本)9789881563835

Inspired by the characteristics of high agility and stability of live jellyfish, a novel biomimetic robotic jellyfish based on multi-linkage mechanism is developed in this paper. The robotic jellyfish consists of a streamlined head, a cavity shell, four driving devices with bevel gears, four actuators based on multi-linkage mechanism, a regulating mechanism for adjusting barycenter and a skin. The four centrosymmetric actuators is used to imitate the locomotion of jellyfish, including the relaxation phase and the contraction phase. The mutually independent and coordinated control of the four actuators is able to achieve diversified movements such as swimming forward, pitching and yawing. As a new type of bio-inspired robots, the robotic jellyfish with high agility, stability and low noise, will serve as a platform for underwater reconnaissance and environmental monitoring.

关键词： Bio-inspired robot Robotic jellyfish Multi-linkage mechanism

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Design and control of a Robotic system for minimally Invasive Vascular Interventional Surgery

Design and Control of a Robotic System for minimally Invasiv...

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32nd Chinese control Conference (CCC)

作者： Feng Zhenqiu Xie Xiao-Liang Bian Gui-bin Wei Peng Hou Zeng-Guang Tan Min Wang Hongbo Chinese Acad Sci Inst Automat State Key Lab Management & Control Complex Syst Beijing 100190 Peoples R China

ISBN: (纸本)9781479900305

The design and control methods of robotic system for vascular interventional surgery is studied in this paper. By considering the characteristics of vascular interventional surgery and operation habits of surgeon, a master-slave remote control catheter system is presented. The system consists of three parts: the operation handle, the catheter manipulator and the host computer. The operation handle is designed to simulate the surgeon's surgical procedure, and the catheter manipulator tracks the handle's movements in both translation and rotation directions. Real time communication between the operation handle and the catheter manipulator has been built based on the host computer. Effectiveness and speed tracking performance between the catheter manipulator and the handle was validated by simulation experiments on a human vascular model.

关键词： Vascular interventional surgery Surgical robot Catheter manipulator Master-slave control Speed tracking

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GPU based Non-dominated Sorting Genetic Algorithm-II for Multi-objective Traffic Light Signaling Optimization with Agent Based Modeling

GPU based Non-dominated Sorting Genetic Algorithm-II for Mul...

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16th International IEEE Conference on Intelligent Transportation systems (ITSC)

作者： Shen, Z. Wang, K. Wang, F. -Y. Chinese Acad Sci State Key Lab Management & Control Complex Syst Beijing Engn Res Ctr Intelligent Syst & Technol Inst Automat Beijing 100190 Peoples R China NUDT Ctr Mil Computat Expt & Automat Changsha Hunan Peoples R China

ISBN: (纸本)9781479929146

Micro-simulation becomes more and more important in the Intelligent Transportation systems (ITS) research, because it can provide detailed descriptions of the system. For a multi-agent systems (MAS) modeling of an ITS, the computation burden is large, as it involves the computation of the state changing of all the agents. And, there are many multi-objective optimization problems in the ITS research. In this paper, we solve the traffic light signaling optimization problem and we take the average delay time and the average stop times as two objectives. We use a famous method of Non-dominated Sorting Genetic Algorithm II (NSGA-II). As NSGA-II can be viewed as an intelligent way of running a number of micro-simulations, usually the computation burden is huge. Graphics Processing Units (GPUs) have been a popular tool for parallel computing. The real transportation system runs in parallel and we think that a parallel tool is more suitable for the simulation and optimization of the system. We test GPU based NSGA-II method on a 4 intersection lattice road network, and on the 18 intersection road network of the Zhongguancun area of Beijing. Compared with the CPU version, the GPU version implementation achieves a speedup factor of 21.46 and 27.64 respectively.

关键词： Graphics processing unit

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The Embedded Image Capture and Processing system Based on PC104 and FPGA

The Embedded Image Capture and Processing System Based on PC...

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32nd Chinese control Conference (CCC)

作者： Wang Yu Wang Shuo Zhou Chao Chinese Acad Sci State Key Lab Management & Control Complex Syst Inst Automat Beijing 100190 Peoples R China

ISBN: (纸本)9781479900305

In this paper, an image capture and processing system based on PC104 and FPGA is designed. The communication between PC104 and FPGA is achieved by PC104-PLUS bus. The FPGA co-processor accomplishes the image capture of CMOS camera and image pretreatment. The PC104 controller, as an upper computer monitor, realizes feature point detection based on LSD line detector and Camshift target tracking algorithm based on the color. Based on the design of the image capture and processing system, the concrete implementation scheme of the image capture and processing system is proposed. And the practicability of our image capture and processing system is demonstrated by feature point detection of a color mark and target tracking algorithm.

关键词： Image capture and processing system Feature point detection Target tracking

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An Approach to Remote Update Driver system of a Robotic Fish with Two Long Fins

An Approach to Remote Update Driver System of a Robotic Fish...

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32nd Chinese control Conference (CCC)

作者： Wei Qingping Wang Shuo Tan Min Chinese Acad Sci Inst Automat State Key Lab Management & Control Complex Syst Beijing 100190 Peoples R China

ISBN: (纸本)9781479900305

The robotic fish with two long fins is one kind of underwater robot system imitating stingray's motion. The robotic fish generates thrust by use of two long fins located on both sides of body symmetrically. A driver control system for the motion control of fin rays is designed based on FPGA(Field Programmable Gate Array). Several kinds of motion modes can be achieved through tuning motion parameters. In order to facilitate updating control algorithm, reducing the probability of damaging the robot system and improving debugging efficiency, a solution for remote updating the driver program of the robotic fish wirelessly is proposed in this paper based on the dedicated remote system update circuitry integrated in ALTERA FPGA. In addition, a remote update system is designed in this paper. The designed control program updating system facilitates the debugging and optimization of multi-fin coordination control algorithm for the robotic fish with two long fins greatly.

关键词： Robotic fish Remote system Update FPGA

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Data-based Vehicle Adaptive Cruise control: A Review

Data-based Vehicle Adaptive Cruise Control: A Review

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32nd Chinese control Conference (CCC)

作者： Zhao Dongbin Wang Bin Chinese Acad Sci Inst Automat State Key Lab Management & Control Complex Syst Beijing 100190 Peoples R China

ISBN: (纸本)9781479900305

Based on the conventional cruise control, vehicle adaptive cruise control (ACC) measures the distance and the relative velocity to the preceding vehicle real time via distance sensor, computes appropriate control output with respect to throttle or brake pedal, and control the velocity or headway automatically. Under the basically security guarantee, ACC could improve the comfort and reduce fuel consumption. This paper comprehensively investigates the theory and technology for ACC of last decades. We conclude the main approach of modeling, control and optimization of ACC, and note that data-based ACC system which conforms driver character and habit has been a new trend.

关键词： Adaptive Cruise control (ACC) Data-based control Model-based control

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Distributed Modeling in a MapReduce Framework for Data-Driven Traffic Flow Forecasting

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IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION systemS 2013年第1期14卷 22-33页

作者： Chen, Cheng Liu, Zhong Lin, Wei-Hua Li, Shuangshuang Wang, Kai Chinese Acad Sci State Key Lab Management & Control Complex Syst Beijing 100190 Peoples R China Natl Univ Def Technol Sci & Technol Informat Syst Engn Lab Changsha 410073 Hunan Peoples R China Univ Arizona Dept Syst & Ind Engn Tucson AZ 85721 USA Natl Univ Def Technol Coll Mechatron Engn & Automat Changsha 410073 Hunan Peoples R China

With the availability of increasingly more new data sources collected for transportation in recent years, the computational effort for traffic flow forecasting in standalone modes has become increasingly demanding for large-scale networks. Distributed modeling strategies can be utilized to reduce the computational effort. In this paper, we present a MapReduce-based approach to processing distributed data to design a MapReduce framework of a traffic forecasting system, including its system architecture and data-processing algorithms. The work presented here can be applied to many traffic forecasting systems with models requiring a learning process (e. g., the neural network approach). We show that the learning process of the forecasting model under our framework can be accelerated from a computational perspective. Meanwhile, model fusion, which is the key problem of distributed modeling, is explicitly treated in this paper to enhance the capability of the forecasting system in data processing and storage.

关键词： Distributed modeling MapReduce model fusion traffic flow forecasting

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Energy Saving Analysis and Evaluation in the Enhanced Local Area Architecture

Energy Saving Analysis and Evaluation in the Enhanced Local ...

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IEEE International Conference on Communications (ICC)

作者： Yu, Bo Cheng, Xiang Yang, Liuqing Colorado State Univ Dept Elect & Comp Engn Ft Collins CO 80523 USA Peking Univ Sch Elect Engn & Comp Sci Beijing Peoples R China Chinese Acad Sci Inst Automat State Key Lab Management & Control Complex Syst Beijing Peoples R China

ISBN: (纸本)9781467357531

In this paper, we investigate the energy savings in small-cell networks in the enhanced Local Area architecture at two stages. At the cell planning stage, we derive the optimal base station (BS) density in terms of the minimum total BS power consumption under certain coverage requirement. Results show that the optimal BS density depends on both the coverage requirement and the BS power consumption model. At the dynamic cell operation stage, we evaluate the feasibility of dynamic BS switching off scheme quantitatively by system level simulations following assumptions and models in 3GPP. Results show that the energy savings are achieved at the cost of data rate loss, and the overall energy efficiency improvement is marginal.

关键词： cellular radio energy conservation local area networks telecommunication network planning

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COUPLED LATENT LEAST SQUARES REGRESSION FOR HETEROGENEOUS FACE RECOGNITION

COUPLED LATENT LEAST SQUARES REGRESSION FOR HETEROGENEOUS FA...

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20th IEEE International Conference on Image Processing (ICIP)

作者： Cai, Xinyuan. Wang, Chunheng. Xiao, Baihua. Chen, Xue. Lv, Zhijian Shi, Yanqin Chinese Acad Sci Inst Automat State Key Lab Management & Control Complex Syst Beijing 100190 Peoples R China Beijing Inst Sci & Technol Informat Beijing 100044 Peoples R China

ISBN: (纸本)9781479923410

One of the most difficult challenges in automatic face recognition is computing facial similarity between two images captured in different modalities, called heterogeneous face recognition. In this paper, we propose a novel method, named as coupled latent least squares regression, to improve the heterogeneous face recognition performance. The basic assumption is that the images of one person captured in different modalities can be viewed as modality-specific transforms of a latent ideal object. We formulate this assumption in the least squares regression framework, so as to learn the coupled transforms for different modalities. In particular, the local consistency information in the each modality is considered as a constraint to improve the generalization. Extensive experiments on two cases of heterogeneous face recognition (visible light vs. near infrared, and photo vs. sketch) validate the efficiency of the proposed method.

关键词： Heterogeneous face recognition least squares regression coupled projections local consistency

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