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Position/Force Hybrid Control System for High Precision Aligning of Small Gripper to Ring Object
Springer Science and Business Media LLC - Tập 10 Số 4 - Trang 360-367 - 2013
Juan Zhang, De Xu, Zhengtao Zhang, Wensheng Zhang
Skeleton Marching-based Parallel Vascular Geometry Reconstruction Using Implicit Functions
Springer Science and Business Media LLC - Tập 17 - Trang 30-43 - 2019
Quan Qi, Qing-De Li, Yongqiang Cheng, Qing-Qi Hong
Fast high-precision patient-specific vascular tissue and geometric structure reconstruction is an essential task for vascular tissue engineering and computer-aided minimally invasive vascular disease diagnosis and surgery. In this paper, we present an effective vascular geometry reconstruction technique by representing a highly complicated geometric structure of a vascular system as an implicit fu...... hiện toàn bộ
A Parzen window-based approach to detection of infrared dim target under sea-sky background
Springer Science and Business Media LLC - - 2016
He Deng, Huang Yao, Yan-Tao Wei, Ji-Dong Chen
People attach great importance to high detection probability and low false alarm probability for infrared dim target detection. Consequently, a novel approach is proposed based on inverted local information entropy map and the improved region growing technique. The idea originates from the intrinsic property of natural image, the visual mechanism of flying insects and the information entropy theor...... hiện toàn bộ
Robust Text Detection in Natural Scenes Using Text Geometry and Visual Appearance
Springer Science and Business Media LLC - - 2015
Sheng-Ye Yan, Xin-Xing Xu, Qing-Shan Liu
This paper proposes a new two-phase approach to robust text detection by integrating the visual appearance and the geometric reasoning rules. In the first phase, geometric rules are used to achieve a higher recall rate. Specifically, a robust stroke width transform (RSWT) feature is proposed to better recover the stroke width by additionally considering the cross of two strokes and the continuousn...... hiện toàn bộ
Real-time 3D microtubule gliding simulation accelerated by GPU computing
Springer Science and Business Media LLC - Tập 13 - Trang 108-116 - 2016
Gregory Gutmann, Daisuke Inoue, Akira Kakugo, Akihiko Konagaya
A microtubule gliding assay is a biological experiment observing the dynamics of microtubules driven by motor proteins fixed on a glass surface. When appropriate microtubule interactions are set up on gliding assay experiments, microtubules often organize and create higher-level dynamics such as ring and bundle structures. In order to reproduce such higher-level dynamics on computers, we have been...... hiện toàn bộ
Resource reconstruction algorithms for on-demand allocation in virtual computing resource pool
Springer Science and Business Media LLC - Tập 9 - Trang 142-154 - 2012
Xiao-Jun Chen, Jing Zhang, Jun-Huai Li, Xiang Li
Resource reconstruction algorithms are studied in this paper to solve the problem of resource on-demand allocation and improve the efficiency of resource utilization in virtual computing resource pool. Based on the idea of resource virtualization and the analysis of the resource status transition, the resource allocation process and the necessity of resource reconstruction are presented. Resource ...... hiện toàn bộ
A fuzzy logic based supervisory hierarchical control scheme for real time pressure control
Springer Science and Business Media LLC - Tập 6 Số 1 - Trang 88-96 - 2009
Kanagaraj, N., Sivashanmugam, P., Paramasivam, S.
This paper describes a supervisory hierarchical fuzzy controller (SHFC) for regulating pressure in a real-time pilot pressure control system. The input scaling factor tuning of a direct expert controller is made using the error and process input parameters in a closed loop system in order to obtain better controller performance for set-point change and load disturbances. This on-line tuning method...... hiện toàn bộ
General Convex Integral Control
Springer Science and Business Media LLC - Tập 11 - Trang 565-570 - 2015
Bai-Shun Liu, Xiang-Qian Luo, Jian-Hui Li
In this paper, a fire-new general integral control, named general convex integral control, is proposed. It is derived by defining a nonlinear function set to form the integral control action and educe a new convex function gain integrator, introducing the partial derivative of Lyapunov function into the integrator and resorting to a general strategy to transform ordinary control into general integ...... hiện toàn bộ
Stability Analysis of an Underactuated Autonomous Underwater Vehicle Using Extended-Routh’s Stability Method
Springer Science and Business Media LLC - Tập 15 - Trang 299-309 - 2017
Basant Kumar Sahu, Bidyadhar Subudhi, Madan Mohan Gupta
In this paper, a new approach to stability analysis of nonlinear dynamics of an underactuated autonomous underwater vehicle (AUV) is presented. AUV is a highly nonlinear robotic system whose dynamic model includes coupled terms due to the hydrodynamic damping factors. It is difficult to analyze the stability of a nonlinear dynamical system through Routh’s stability approach because it contains non...... hiện toàn bộ
A sensor-based SLAM algorithm for camera tracking in virtual studio
Springer Science and Business Media LLC - Tập 5 - Trang 152-162 - 2008
Po Yang, Wenyan Wu, Mansour Moniri, Claude C. Chibelushi
This paper addresses a sensor-based simultaneous localization and mapping (SLAM) algorithm for camera tracking in a virtual studio environment. The traditional camera tracking methods in virtual studios are vision-based or sensor-based. However, the chroma keying process in virtual studios requires color cues, such as blue background, to segment foreground objects to be inserted into images and vi...... hiện toàn bộ
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