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The Design of Smart Car Based on Android Client

IOP Conference Series: Earth and Environmental Science 2021年第1期693卷

作者： Lili Tang Wei Huang Linhai Guo Department of Computer and Information Engineering Zhixing College of Hubei University Wuhan 430011 China The Fourth Laboratory System Design Institute of Hubei Aerospace Technology Academy Wuhan 430011 China

This design is based on the open source Android version 8.0 system to develop the mobile phone platform client, using the eclipse integrated development environment to research and develop Bluetooth control. The remote control of the car is realized by Bluetooth technology, gravity sensor and voice. The design is mainly composed of hardware system and software system. It can realize the car's forward, backward, rear left turn, rear right turn, front left turn, front right turn and other functions. This design scheme provides a new solution for the design and implementation of wireless remote control vehicle, and also plays a certain reference role for the design of remote control smart home system in the future.

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Waterline mapping of inland great lake with subpixel accuracy from GF-3 SAR images 6

Waterline mapping of inland great lake with subpixel accurac...

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6th Asia-Pacific Conference on Synthetic Aperture Radar, APSAR 2019

作者： Li, Ning Niu, Shilin Wang, Robert Wu, Lin Guo, Zhengwei College of Computer and Information Engineering Henan University Kaifeng475004 China Henan Key Laboratory of Big Data Analysis and Processing Henan University Kaifeng475004 China Henan Engineering Research Center of Intelligent Technology and Application Kaifeng475004 China Department of Space Microwave Remote Sensing System Institute of Electronics Chinese Academy of Sciences Beijing100190 China

ISBN: (纸本)9781728129129

High-accuracy waterline mapping with Synthetic Aperture Radar (SAR) images is a challenging task because of the inhomogeneities of SAR imagery caused by the speckle noise and complex terrain. This paper presents a novel method for waterline mapping with subpixel accuracy. The proposed method mainly consists of three steps. Firstly, an improved Non-Local filter is adapted to suppress the speckle noise. Secondly, a Fuzzy C-Means (FCM) clustering algorithm is used to extract the pixel-level waterline. Thirdly, along the pixel-level waterline, a novel subpixel-scale waterline extraction method based on bicubic convolution and Geometric Active Contour (GAC) model is presented to further improve the accuracy of the waterline. Without loss of generality, the Danjiangkou reservoir (DJKR), which is the largest artificial freshwater lake in Asia, is selected as a study case. SAR images from Chinese GaoFen-3 (GF-3) satellite working on different modes are processed to demonstrate the effectiveness of the proposed method. © 2019 IEEE.

关键词： Synthetic aperture radar

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Author Correction: Climate-driven changes in the predictability of seasonal precipitation

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Nature communications 2023年第1期14卷 4292页

作者： Phong V V Le James T Randerson Rebecca Willett Stephen Wright Padhraic Smyth Clément Guilloteau Antonios Mamalakis Efi Foufoula-Georgiou Environmental Sciences Division Oak Ridge National Laboratory Oak Ridge TN USA. lepv@ornl.gov. Department of Civil and Environmental Engineering University of California Irvine CA USA. lepv@ornl.gov. Faculty of Hydrology Meteorology and Oceanography University of Science Vietnam National University Hanoi Vietnam. lepv@ornl.gov. Department of Civil and Environmental Engineering University of California Irvine CA USA. Department of Earth System Science University of California Irvine CA USA. Department of Statistics University of Chicago Chicago IL USA. Department of Computer Science University of Chicago Chicago IL USA. Computer Science Department University of Wisconsin-Madison Madison WI USA. Department of Computer Science University of California Irvine CA USA. Department of Statistics University of California Irvine CA USA. Department of Atmospheric Science Colorado State University Fort Collins CO USA. Department of Civil and Environmental Engineering University of California Irvine CA USA. efi@uci.edu. Department of Earth System Science University of California Irvine CA USA. efi@uci.edu.

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Understanding metric-related pitfalls in image analysis validation

arXiv

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arXiv 2023年

作者： Reinke, Annika Tizabi, Minu D. Baumgartner, Michael Eisenmann, Matthias Heckmann-Nötzel, Doreen Kavur, A. Emre Rädsch, Tim Sudre, Carole H. Acion, Laura Antonelli, Michela Arbel, Tal Bakas, Spyridon Benis, Arriel Blaschko, Matthew B. Buettner, Florian Cardoso, M. Jorge Cheplygina, Veronika Chen, Jianxu Christodoulou, Evangelia Cimini, Beth A. Collins, Gary S. Farahani, Keyvan Ferrer, Luciana Galdran, Adrian van Ginneken, Bram Glocker, Ben Godau, Patrick Haase, Robert Hashimoto, Daniel A. Hoffman, Michael M. Huisman, Merel Isensee, Fabian Jannin, Pierre Kahn, Charles E. Kainmueller, Dagmar Kainz, Bernhard Karargyris, Alexandros Karthikesalingam, Alan Kenngott, Hannes Kleesiek, Jens Kofler, Florian Kooi, Thijs Kopp-Schneider, Annette Kozubek, Michal Kreshuk, Anna Kurc, Tahsin Landman, Bennett A. Litjens, Geert Madani, Amin Maier-Hein, Klaus Martel, Anne L. Mattson, Peter Meijering, Erik Menze, Bjoern Moons, Karel G.M. Müller, Henning Nichyporuk, Brennan Nickel, Felix Petersen, Jens Rafelski, Susanne M. Rajpoot, Nasir Reyes, Mauricio Riegler, Michael A. Rieke, Nicola Saez-Rodriguez, Julio Sánchez, Clara I. Shetty, Shravya Summers, Ronald M. Taha, Abdel A. Tiulpin, Aleksei Tsaftaris, Sotirios A. van Calster, Ben Varoquaux, Gaël Yaniv, Ziv R. Jäger, Paul F. Maier-Hein, Lena Faculty of Mathematics and Computer Science Heidelberg University Heidelberg Germany Heidelberg Division of Intelligent Medical Systems Germany NCT Heidelberg A Partnership Between DKFZ University Medical Center Heidelberg Germany Heidelberg Division of Medical Image Computing Germany Heidelberg Division of Intelligent Medical Systems Germany MRC Unit for Lifelong Health and Ageing UCL Centre for Medical Image Computing Department of Computer Science University College London London United Kingdom School of Biomedical Engineering and Imaging Science King’s College London London United Kingdom Instituto de Cálculo CONICET – Universidad de Buenos Aires Buenos Aires Argentina Centre for Medical Image Computing University College London London United Kingdom McGill University Montreal Canada Division of Computational Pathology Dept of Pathology & Laboratory Medicine Indiana University School of Medicine IU Health Information and Translational Sciences Building Indianapolis United States University of Pennsylvania Richards Medical Research Laboratories FL7 PhiladelphiaPA United States Department of Digital Medical Technologies Holon Institute of Technology Holon Israel European Federation for Medical Informatics Le Mont-sur-Lausanne Switzerland Center for Processing Speech and Images Department of Electrical Engineering KU Leuven Leuven Belgium partner site Frankfurt/Mainz a partnership between DKFZ and UCT Frankfurt Marburg Germany Heidelberg Germany Goethe University Frankfurt Department of Medicine Germany Goethe University Frankfurt Department of Informatics Germany and Frankfurt Cancer Insititute Germany Department of Computer Science IT University of Copenhagen Copenhagen Denmark Leibniz-Institut für Analytische Wissenschaften – ISAS – e.V. Dortmund Germany Imaging Platform Broad Institute of MIT and Harvard CambridgeMA United States Centre for Statistics in Medicine University of Oxford Oxford United Kingdom Center for Biomedical In

Validation metrics are key for tracking scientific progress and bridging the current chasm between artificial intelligence (AI) research and its translation into practice. However, increasing evidence shows that particularly in image analysis, metrics are often chosen inadequately. While taking into account the individual strengths, weaknesses, and limitations of validation metrics is a critical prerequisite to making educated choices, the relevant knowledge is currently scattered and poorly accessible to individual researchers. Based on a multi-stage Delphi process conducted by a multidisciplinary expert consortium as well as extensive community feedback, the present work provides the first reliable and comprehensive common point of access to information on pitfalls related to validation metrics in image analysis. While focused on biomedical image analysis, the addressed pitfalls generalize across application domains and are categorized according to a newly created, domain-agnostic taxonomy. The work serves to enhance global comprehension of a key topic in image analysis validation. © 2023, CC BY.

关键词： computer vision

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Opacity of Nondeterministic Transition systems: A (Bi)Simulation Relation Approach

Opacity of Nondeterministic Transition Systems: A (Bi)Simula...

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作者： Zhang, Kuize Yin, Xiang Zamani, Majid ACCESS Linnaeus Center School of Electrical Engineering KTH Royal Institute of Technology Stockholm10044 Sweden Department of Automation Key Laboratory of System Control and Information Processing Shanghai Jiao Tong University Shanghai200240 China Computer Science Department University of Colorado Boulder BoulderCO80309 United States

In this paper, we propose several opacity-preserving (bi)simulation relations for nondeterministic transition systems (NTSs) in terms of initial-state opacity, current-state opacity, K-step opacity, and infinite-step opacity. We also show how one can leverage quotient constructions to compute such relations. As a result, although the opacity verification problem for infinite NTSs is generally undecidable, if one can find such an opacity-preserving relation from an infinite NTS to a finite one, the (lack of) opacity of the infinite NTS can be easily verified over the finite one, which is decidable. © 1963-2012 IEEE.

关键词： Opacity

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Non-Linear 3d Reconstruction For Compressive X-Ray Tomosynthesis

Non-Linear 3d Reconstruction For Compressive X-Ray Tomosynth...

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IEEE International Conference on Image Processing

作者： Qile Zhao Xu Ma Angela Cuadros Gonzalo R. Arce Rui Chen Key Laboratory of Photoelectronic Imaging Technology and System of Ministry of Education of China School of Optics and Photonics Beijing Institute of Technology Beijing China Department of Electrical and Computer Engineering University of Delaware USA Integrated Circuit Advanced Process Center Institute of Microelectronics of Chinese Academy of Sciences Beijing China

ISBN: (数字)9781728163956

ISBN: (纸本)9781728163963

Compressive X-ray tomosynthesis is an emerging technology that can be used for medical diagnosis, safety inspection and industrial non-destructive testing. Traditional compressive X-ray tomosynthesis uses sequential illumination to interrogate the object of interest, which generates non-overlapping projection measurements. However, when multiple X-ray sources emit simultaneously, the projections corresponding to different sources overlap creating multiplexed measurements. Such measurement strategy leads to a non-linear reconstruction problem. The reconstruction of the three-dimensional (3D) object from multiplexed projections is an important problem. This paper proposes a non-linear 3D reconstruction approach for compressive X-ray tomosynthesis, where a set of coding masks are used to generate structured illumination and reduce radiation dose. The effectiveness of the method is verified by simulation experiments. It is shown that the proposed approach can reconstruct high-quality images with just a few snapshots.

关键词： Image reconstruction X-ray imaging Detectors Biomedical imaging Three-dimensional displays Encoding

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LED illumination module for fluorescence and spectroscopic studies in microscopy 15

LED illumination module for fluorescence and spectroscopic s...

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15th International Conference on Optical Methods of Flow Investigation, OMFI 2019

作者： Batshev, V.I. Blokhin, A.A. Belov, A.S. Laser and Opto-electronic Department Bauman Moscow State Technical University 2-ya Baumanskaya 5 Moscow105005 Russia Laboratory of Acousto-optic Spectroscopy Scientific Technological Center of Unique Instrumentation RAS Butlerova 15 Moscow117342 Russia Department of Electrical Engineering and Introscopy Institute of Automatics and Computer Engineering National Research University Moscow Power Engineering Institute Krasnokazarmennaya 14 Moscow111250 Russia Digital Medicine LLC Skolkovo Innovation Center 42 Bolshoy boulevard Moscow143026 Russia

In this report we produce a microscopic illuminator consisting of four light emitting diodes (LEDs) with different wavelength. The radiation power of each LED could be controlled independently. The dichroic mirrors are used as a beam combiner. So, it is possible to create a highlight of the required spectral composition on the object under study. This illuminator is useful both for fluorescent analysis or spectral imaging. © Published under licence by IOP Publishing Ltd.

关键词： Light emitting diodes

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Erratum to “A Nonlinear Receiver Leveraging Cascaded Inverter-Based Envelope-Biased LNAs for In-Band Interference Suppression in the Amplitude Domain” [Nov 21 3360-3374]

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IEEE Journal of Solid-State Circuits 2022年第2期57卷 671-671页

作者： Dawei Ye Rongjin Xu C.-J. Richard Shi State Key Laboratory of ASIC and System Fudan University Shanghai China Institute of Brain-Inspired Circuits and Systems (iBiCAS) Fudan University Shanghai China MOE Frontiers Center for Brain Science Fudan University Shanghai China Department of Electrical and Computer Engineering University of Washington Seattle WA USA

In the above article [1] , Fig. 4 is wrong. The correct one is shown below:

关键词： Interference suppression Internet of Things CMOS analog integrated circuits Low-noise amplifiers

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ALSRAC: Approximate Logic Synthesis by Resubstitution with Approximate Care Set

ALSRAC: Approximate Logic Synthesis by Resubstitution with A...

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Design Automation Conference

作者： Chang Meng Weikang Qian Alan Mishchenko University of Michigan-Shanghai Jiao Tong University Joint Institute Shanghai Jiao Tong University Shanghai China MoE Key Laboratory of Artificial Intelligence Shanghai Jiao Tong University Shanghai China State Key Laboratory of ASIC & System Fudan University Shanghai China Department of Electrical Engineering and Computer Sciences University of California Berkeley USA

ISBN: (数字)9781728110851

ISBN: (纸本)9781728158020

Approximate computing is an emerging design technique for error-resilient applications. It improves circuit area, power, and delay at the cost of introducing some errors. Approximate logic synthesis (ALS) is an automatic process to produce approximate circuits. This paper proposes approximate resubstitution with approximate care set and uses it to build a simulation-based ALS flow. The experimental results demonstrate that the proposed method saves 7%-18% area compared to state-of-the-art methods. The code of ALSRAC is made open-source.

关键词： Error analysis Logic gates Delays Measurement uncertainty Integrated circuit modeling Erbium

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Asymmetric topological pumping in nonparaxial photonics

arXiv

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arXiv 2021年

作者： Cheng, Qingqing Wang, Huaiqiang Ke, Yongguan Chen, Tao Yu, Ye Kivshar, Yuri S. Lee, Chaohong Pan, Yiming Shanghai Key Laboratory of Modern Optical System School of Optical-Electrical and Computer Engineering University of Shanghai for Science and Technology Shanghai200093 China National Laboratory of Solid State Microstructures School of Physics Nanjing University Nanjing210093 China Department of Physics University of Zurich Zurich8057 Switzerland Guangdong Provincial Key Laboratory of Quantum Metrology and Sensing School of Physics and Astronomy Sun Yat-Sen University Zhuhai Campus Zhuhai519082 China State Key Laboratory of Optoelectronic Materials and Technologies Sun Yat-Sen University Guangzhou Campus Guangzhou510275 China Nonlinear Physics Centre Research School of Physics Australian National University CanberraACT2601 Australia Physics Department Solid State Institute Technion Haifa32000 Israel

Topological photonics was initially inspired by the quantum-optical analogy between the Schrödinger equation for an electron wavefunction and the paraxial equation for a light beam. Here, we reveal an unexpected phenomenon in topological pumping observed in arrays of nonparaxial optical waveguides where the quantum-optical analogy becomes invalid. We predict theoretically and demonstrate experimentally an asymmetric topological pumping when the injected field transfers from one side of the waveguide array to the other side whereas the reverse process is unexpectedly forbidden. Our finding could open an avenue for exploring topological photonics that enables nontrivial topological phenomena and designs in photonics driven by nonparaxiality. © 2021, CC BY.

关键词： Topology

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