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IEEE International Conference on Multimedia and Expo (ICME)

作者： Huabing Zhou Jiayi Ma Yanduo Zhang Zhenghong Yu Shiqiang Ren Deng Chen Hubei Provincial Key Laboratory of Intelligent Robot Wuhan Institute of Technology Wuhan China Electronic Information School Wuhan University Wuhan China College of Mechanical and Electrical Engineering Guangdong Institute of Science and Technology Zhuhai China

ISBN: (纸本)9781509060689

In this paper, a novel closed-form transformation estimation method based on feature guided moving least squares together with manifold regularization is proposed for nonrigid image/surface deformation. The method takes the user-controlled point-offset-vectors and the feature points of the image/surface as input, and estimates the spatial transformation between the two control point sets for each pixel/voxel. To achieve a detail-preserving and realistic deformation, the transformation estimation is formulated as a vector-field interpolation problem using a feature guided moving least squares method, where a manifold regularization is imposed as a prior on the transformation to capture the underlying intrinsic geometry of the input image/surface. The non-rigid transformation is specified in a reproducing kernel Hilbert space. We derive a closed-form solution of the transformation and adopt a sparse approximation to achieve a fast implementation, which largely reduces the computation complexity without performance sacrifice. In addition, the proposed method can give a wonderful user experience, fast and convenient manipulating. Extensive experiments on both 2D and 3D data demonstrate that the proposed method can produce more natural deformations compared with other state-of-the-art methods.

关键词： Manifolds Three-dimensional displays Two dimensional displays Estimation Interpolation Geometry Closed-form solutions

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Second-harmonic generation with ultralow-power pump thresholds in a dimer of two active-passive cavities

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Physical Review A 2017年第1期96卷 013815-013815页

作者： Jiahua Li Rong Yu Ye Qu Chunling Ding Duo Zhang Ying Wu School of Physics MOE Key Laboratory of Fundamental Physical Quantities Measurement Huazhong University of Science and Technology Wuhan 430074 People's Republic of China School of Science Hubei Province Key Laboratory of Intelligent Robot Wuhan Institute of Technology Wuhan 430205 People's Republic of China School of Electrical and Electronic Engineering Wuhan Polytechnic University Wuhan 430023 People's Republic of China Wuhan National Laboratory for Optoelectronics and School of Physics Huazhong University of Science and Technology Wuhan 430074 People's Republic of China

One of the current challenges in second-harmonic generation (SHG) is to increase the efficiency of the second-harmonic conversion process while maintaining or even decreasing the fundamental-harmonic pump powers in a compact device. Here, we put forward an on-chip scheme to realize high-efficiency optical SHG in active-passive-coupled microring resonators with the aid of the intrinsic second-order nonlinearity. By careful analysis and extensive simulations, it is found that the introduction of an active microring resonator makes the strong SHG process feature an ultralow-power pump threshold, which is about four orders of magnitude lower than that in a single-microring resonator SHG system reported previously by X. Guo et al. [Optica 3, 1126 (2016)]. The observed SHG is enhanced by a factor of over 200 compared to the single-microring-resonator SHG system. The SHG conversion efficiency of over 72% can be reached with optical pump power as low as a few microwatts for our proposed device. This investigation may open a new route towards development of easily fabricated radiation sources of coherent high-energy (shorter-wavelength) photons with an ultralow-power laser-triggered SHG process.

关键词： Light propagation, transmission & absorption Second order nonlinear optical processes Cavity resonators Optical second-harmonic generation

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Controllable synthesis of large scale, catalyst-free, lateral ZnO nanowires network 6

Controllable synthesis of large scale, catalyst-free, latera...

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6th IEEE International Conference on Manipulation, manufacturing and Measurement on the Nanoscale, IEEE 3M-NANO 2016

作者： Jian, Guan Guo, Shuxu Jiang, Haitao Gao, Fengli Lu, Wenqiang Wang, Deqiang State Key Laboratory on Integrated Optoelectronics College of Electronic Science and Engineering Jilin University Changchun130021 China Chongqing Key Laboratory of Multi-scale Manufacturing Technology Chongqing Institute of Green and Intelligent Technology Chinese Academy of Sciences Chongqing400714 China

ISBN: (纸本)9781509029457

We report a novel method for large scale catalyst-free zinc oxide nanowires (ZnO NWs) network growth on Si substrate using chemical vapor deposition (CVD). The SiO2 layer of the Si substrate is photoetched to SiO2 square pillar array which works as the growth core of urchin-like ZnO NW lump, and the NWs cross over each other forming an integrated network. This method achieves controlled growth of lateral ZnO NW network and allows the in situ nano device fabrication. Meanwhile, the vapor deposition mechanism is discussed and confirmed by contrast experiments along with different growth conditions, which realizes growth on large size substrate. According to the result of Field Emission Scanning Electron Microscope (FE-SEM), the ZnO NWs are wurtzite hexagonal single-crystalline and the network is intact with massive intersection points. © 2016 IEEE.

关键词： Chemical vapor deposition

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Non-rigid feature matching for image retrieval using global and local regularizations

Non-rigid feature matching for image retrieval using global ...

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IEEE International Conference on Multimedia and Expo (ICME)

作者： Yong Ma Huabing Zhou Jun Chen Jingshu Shi Zhongyuan Wang Electronic Information School Wuhan University Wuhan China Hubei Provincial Key Laboratory of Intelligent Robot Wuhan Institute of Technology Wuhan China School of Automation China University of Geosciences Wuhan China Shenzhen Middle School Shenzhen China Computer School Wuhan University Wuhan China

ISBN: (纸本)9781509060689

In this paper, we propose a probabilistic method for feature matching of near-duplicate images undergoing non-rigid transformations. We start by creating a set of putative correspondences based on the feature similarity, and then focus on removing outliers from the putative set and estimating the transformation as well. This is formulated as a maximum likelihood estimation of a Bayesian model with latent variables indicating whether matches in the putative set are inliers or outliers. We impose the non-parametric global geometrical constraints on the correspondence using Tikhonov regularizers in a reproducing kernel Hilbert space. We also introduce a local geometrical constraint to preserve local structures among neighboring feature points. The problem is solved by using the Expectation Maximization algorithm, and the closed-form solution of the transformation is derived in the maximization step. Moreover, a fast implementation based on sparse approximation is given which reduces the method computation complexity to linearithmic without performance sacrifice. Extensive experiments on real near-duplicate images for both feature matching and image retrieval demonstrate accurate results of the proposed method which outperforms current state-of-the-art methods, especially in case of severe outliers.

关键词： Image retrieval Kernel Robustness Maximum likelihood estimation Probabilistic logic Cost function

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Partial labeled gastric tumor segmentation via patch⇂based reiterative learning

arXiv

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arXiv 2017年

作者： Nan, Yang Coppola, Gianmarc Liang, Qiaokang Zou, Kunglin Sun, Wei Zhang, Dan Wang, Yaonan Yu, Guanzhen College of Electrical and Information Engineering Hunan University Changsha410082 China National Engineering Laboratory for Robot Vision Perception and Control Hunan University Changsha Hunan410082 China Hunan Key Laboratory of Intelligent Robot Technology in Electronic Manufacturing Hunan418000 China Faculty of Engineering and Applied Science University of Ontario Institute of Technology OshawaONL1H 7K4 Canada Department of Mechanical Engineering York University TorontoONM3J 1P3 Canada Department of Oncology Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine Shanghai201203 China

Gastric cancer is the second leading cause of cancer‐related deaths worldwide, and the major hurdle in biomedical image analysis is the determination of the cancer extent. This assignment has high clinical relevance and would generally require vast microscopic assessment by pathologists. Recent advances in deep learning have produced inspiring results on biomedical image segmentation, while its outcome is reliant on comprehensive annotation. This requires plenty of labor costs, for the ground truth must be annotated meticulously by pathologists. In this paper, a reiterative learning framework was presented to train our network on partial annotated biomedical images, and superior performance was achieved without any pre‐trained or further manual annotation. We eliminate the boundary error of patch‐based model through our overlapped region forecast algorithm. Through these advisable methods, a mean intersection over union coefficient (IOU) of 0.883 and mean accuracy of 91.09% on the partial labeled dataset was achieved, which made us win the 2017 China Big Data & Artificial Intelligence Innovation and Entrepreneurship Competitions1. Copyright © 2017, The Authors. All rights reserved.

关键词： Diseases

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Study of the anti-noise performance of chip spectrometer based on sparse recovery

Study of the anti-noise performance of chip spectrometer bas...

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International Symposium on Optoelectronic technology and Application 2016(OTA 2016)——Conf.11 Silicon-based Photonic Integration

作者： Feiying Sun Liangping Xia Peng Wu Zheng Yang Xiuhui Sun Jun Cui Changbin Nie Shaoyun Yin Chunlei Du Key Laboratory of Multi-scale Manufacturing Technology Chongqing institute of green and intelligent technologyChinese Academy of Sciences School of Electronic Information Wuhan University

Spectrometer has been widely used in the field of laser, biochemical analysis, geology and metallurgy, etc. The spectrometer based on dispersion and traditional Fourier transform is restricted by phys

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Rectifcation of ion current determined by the nanopore geometry: Experiments and modelling

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Chinese Physics Letters 2016年第10期33卷

作者： Zhou, Da-Ming Deng, Yun-Sheng Ying, Cui-Feng Zhang, Yue-Chuan Feng, Yan-Xiao Huang, Qi-Meng Liang, Li-Yuan Wang, De-Qiang Chongqing Key Laboratory of Multi-scale Manufacturing Technology Chongqing Institute of Green and Intelligent Technology Chongqing400714 China School of Physics Nankai University Tianjin300071 China University of Electronic Science and Technology of China Chengdu611731 China

We provide a way to precisely control the geometry of a SiNx nanopore by adjusting the applied electric pulse. The pore is generated by applying the current pulse across a SiNx membrane, which is immersed in potassium chloride solution. We can generate single conical and cylindrical pores with different electric pulses. A theoretical model based on the Poisson and NernsẗCPlanck equations is employed to simulate the ion transport properties in the channel. In turn, we can analyze pore geometries by fitting the experimental current-voltage (I-V) curves. For the conical pores with a pore size of 0.5-2nm in diameter, the slope angles are around -2.5° to -10°. Moreover, the pore orifice can be enlarged slightly by additional repeating pulses. The conic pore lumen becomes close to a cylindrical channel, resulting in a symmetry I-V transport under positive and negative biases. A qualitative understanding of these effects will help us to prepare useful solid-nanopores as demanded. © 2016 Chinese Physical Society and IOP Publishing Ltd.

关键词： Nanopores

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Operator-based fault tolerant control for uncertain nonlinear systems

Operator-based fault tolerant control for uncertain nonlinea...

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World Congress on intelligent Control and Automation (WCICA)

作者： Shuhui Bi Lei Wang Ming Zhang Mingcong Deng School of Electrical Engineering University of Jinan China Shandong provincial key laboratory of robot and manufacturing automation technology Shandong Academy of Science Jinan China Inspur Chaoyue Digital Control Electronics Co. Ltd. Jinan China Department of Electrical and Electronic Engineering Tokyo University of Agriculture and Technology Tokyo Japan

ISBN: (纸本)9781467384155

In this paper, operator based fault tolerant control for uncertain nonlinear system with actuator fault is considered by using operator based robust right coprime factorization approach. In detail, on the basis of the operator based control design structure, fault detection system design and fault tolerant control system design are considered for nonlinear system without and with uncertainty, respectively. In both of the proposed control system design, the fault signal can be detected and some sufficient conditions are given, which ensure that the designed system is stable and the output tracking performance can be realized. Finally, the theoretical analysis is applied onto an aluminium plate temperature control process and the effectiveness of the theoretical analysis is demonstrated by the simulation results.

关键词： Uncertainty Fault tolerant control Nonlinear systems Process control Fault tolerant systems Fault detection Actuators

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Corrigendum to ‘Nanopore-based Fourth-generation DNA Sequencing technology' [GPB 144(2015)–GPB 13/1(4–16)]

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Genomics, Proteomics & Bioinformatics 2015年第6期13卷 200-201页

作者： Yanxiao Feng Yuechuan Zhang Cuifeng Ying Deqiang Wang Chunlei Du Chongqing Key Laboratory of Multi-scale Manufacturing Technology Chongqing Institute of Green and Intelligent TechnologyChinese Academy of Sciences University of Chinese Academy of Sciences School of Physical Electronics University of Electronic Science and Technology of China MOE Key Laboratory of Weak-light Nonlinear Photonics School of PhysicsNankai University

The authors regret that there were typos in the online version of Figure 4 published in Issue 1,*** the figure legend boxes of panels F and G,‘‘Ni’’should be corrected to‘‘N’’for the labeling of the green *** figure in the printed version has been *** correct Figure 4 is shown *** authors would like to apologize for any inconvenience caused.

关键词： EELS Figure Corrigendum to GPB 13/1 GPB 144 Nanopore-based Fourth-generation DNA Sequencing technology

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Extracting more object usage scenarios for API protocol mining 27

Extracting more object usage scenarios for API protocol mini...

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27th International Conference on Software Engineering and Knowledge Engineering, SEKE 2015

作者： Chen, Deng Zhang, Yanduo Wang, Rongcun Qu, Binbin Ju, Jianping Wei, Wei Industrial Robot Engineering Center Wuhan Institute of Technology Wuhan China Hubei Provincial Key Laboratory of Intelligent Robot Wuhan Institute of Technology Wuhan China School of Computer Science and Technology China University of Mining and Technology Xuzhou China School of Computer Science and Technology Huazhong University of Science and Technology Wuhan China School of Electronic Information Wuhan University Wuhan China

ISBN: (纸本)1891706373

Automatic protocol mining is a promising approach to infer precise and complete API protocols. However, the effect of the approach largely depends upon the quality of input object usage scenarios, in terms of noise and diversity. This paper aims to extract as many object usage scenarios as possible from object-oriented programs for automatic protocol mining. A large corpus of object usage scenarios can help with eliminating noise accurately and is likely to be diverse. Therefore, precise and complete protocols may be achieved. Given an object-oriented program p, generally, object usage scenarios that can be collected from a run of p is not more than the number of instances used in p. Relying on the inheritance relationship among classes, our technique can extract a maximum of n times more object usage scenarios from p, where n is the average inheritance depth of all object usage scenarios in p. In order to investigate the effect of our technique on mining protocols, we implement it in our previous prototype tool ISpecMiner and use the tool to mine protocols from several real-world applications. The experimental results show that our technique is promising to achieve complete and precise API protocols. In addition, protocols of classes that have not been used in programs can be also achieved, which is helpful for program documentation and understanding.

关键词： Object oriented programming

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