Results 1 to 10 of about 4,520,326 (251)
General virtual sketching framework for vector line art [PDF]
ACM Transactions on Graphics, 2021 Vector line art plays an important role in graphic design, however, it is tedious to manually create. We introduce a general framework to produce line drawings from a wide variety of images, by learning a mapping from raster image space to vector image space. Our approach is based on a recurrent neural network that draws the lines one by one.
Ruomei Wang +2 more
exaly +2 more sources
IEEE Access, 2020 The voltage balancing problem of dc-link capacitors in multilevel diode-clamped converters limits their applications in industry under some operational conditions.
Muhammad Attique Qamar +4 more
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Virtual flux vector reconstruction of a PWM rectifier
工程科学学报, 2016 The virtual flux space vector of a pulse width modulation (PWM) rectifier usually can be calculated by integrating the grid voltage vector. In practice, the pure integral part is replaced with a first-order low-pass filter (FOLP) to counteract the DC ...
CHEN Tie-zhu +3 more
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Energies, 2023 Direct power control (DPC) has gained increasing attention in recent years as a simple and efficient control strategy for pulse width modulation (PWM) rectifiers.
Yajun Zhao, Wenxin Huang, Feifei Bu
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IEEE Open Journal of Circuits and Systems, 2022 The Conventional model predictive control (C-MPC) uses only a single voltage vector in each control period, resulting in poor control performance. In addition, the computational burden in discrete space state generated by three-level inverter cannot be ...
Weiquan Gu +4 more
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Applied Sciences, 2023 Aiming at the problem of poor spatial resolution of low-frequency noise sources in a small-aperture spherical microphone array (SMA), this paper proposes a method for localizing and identifying low-frequency noise sources based on virtual-vector open SMA
Boquan Yang +3 more
doaj +1 more source
Homogenized Virtual Support Vector Machines [PDF]
Digital Image Computing: Techniques and Applications (DICTA'05), 2005 In many domains, reliable a priori knowledge exists that may be used to improve classifier performance. For example in handwritten digit recognition, such a priori knowledge may include classification invariance with respect to image translations and rotations. In this paper, we present a new generalisation of the Support Vector Machine (SVM) that aims
Christian J. Walder, Brian C. Lovell
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Multi-Virtual-Vector Model Predictive Current Control for Dual Three-Phase PMSM
Energies, 2021 This paper proposes a multi-virtual-vector model predictive control (MPC) for a dual three-phase permanent magnet synchronous machine (DTP-PMSM), which aims to regulate the currents in both fundamental and harmonic subspace.
Tianjiao Luan +6 more
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An Improved FCS-MPC Based on Virtual Vector Expansion and Sector Optimization for 2L-VSCs
IEEE Access, 2022 Conventional finite control set model predictive control (FCS-MPC) outputs one voltage vector per period by vector traversal algorithm, which leads to low control accuracy, unnecessary high computational burden and unfixed switching frequency.
Shaomin Yan +4 more
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Virtual sensors for 2D vector field tomography [PDF]
Journal of the Optical Society of America A, 2010 We consider the application of tomography to the reconstruction of 2-D vector fields. The most convenient sensor configuration in such problems is the regular positioning along the domain boundary. However, the most accurate reconstructions are obtained by sampling uniformly the Radon parameter domain rather than the border of the reconstruction domain.
Giannakidis, A, Kotoulas, L, Petrou, M
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