Browsing 09 Engineering by Author "Fang Gu"

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Browsing 09 Engineering by Author "Fang Gu"

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  • Automatic fuzzy membership function tuning using the Particle Swarm Optimisation 
    Fang Gu; Kwok Ngai Ming; Ha Quang (IEEE, 2008)
    Fuzzy logic controllers (FLCs) are developed to exploit human expert knowledge in designing control systems. While the fuzzy rules are relatively easy to obtain, fuzzy membership function (MF) tuning could be a time consuming ...
  • Color Image Contrast Enhancement using a Local Equalisation and Weighted Sum Approach 
    Kwok Ngai; Ha Quang; Fang Gu; Rad Ahmed; Wang D (IEEE, 2010)
    Image contrast enhancement is a fundamental step taken to ensure the effectiveness of subsequent image-related processes. In additional to subjective quality evaluation, objective user viewing is also a common performance ...
  • Effect of color space on color image segmentation 
    Kwok Ngai Ming; Ha Quang; Fang Gu (IEEE, Inc., 2009)
    A study of color image segmentation with its dependence on color space representation is presented. Segmentation has been one of the basic procedures in image processing. Because of the three-fold increase in color signal ...
  • Intensity-Preserving Contrast Enhancement for Gray-Level Images Using Multi-Objective particle Swarm Optimisation 
    Kwok Ngai Ming; Ha Quang; Liu Dikai; Fang Gu (The Institute of Electrical and Electronic Engineers Inc (IEEE), 2006)
    This paper addresses the enhancement of the contrast of gray-level digital images while preserving the mean image intensity, thus, providing better viewing consistence and effectiveness. The contrast enhancement is ...
  • Mobile robot localization and mapping using a Gaussian sum filter 
    Kwok Ngai Ming; Ha Quang; Huang Shoudong; Dissanayake Gamini; Fang Gu (Institute of Control, Automation, and Systems Engineers: Korean Institute of Electrical Engineers, 2007)
    A Gaussian sum filter (GSF) is proposed in this paper on simultaneous localization and mapping (SLAM) for mobile robot navigation. In particular, the SLAM problem is tackled here for cases when only bearing measurements ...
  • Motion coordination for construction vehicles using swarm intelligence 
    Kwok Ngai Ming; Ha Quang; Fang Gu (Advanced Robotics Systems, 2007)
    In a variety of tasks performed in construction sites, coordinated operations of multi-vehicles are foreshadowed to outperform the deployment of a single vehicle in terms of increased capacity and flexibility. This paper ...
  • Multi-Step Look-Ahead Trajectory Planning in SLAM: Possibility and Necessity 
    Kwok Ngai Ming; Dissanayake Gamini; Huang Shoudong; Ha Quang; Fang Gu (The Institute of Electrical and Electronic Engineers Inc (IEEE), 2005)
    In this paper, the possibility and necessity of multistep trajectory planning in Extended Kalman Filter (EKF) based SLAM is investigated. The objective of the trajectory planning here is to minimize the estimation error ...
  • Path Planning for Bearing-Only Simultaneous Localisation and Mapping 
    Kwok Ngai Ming; Liu Dikai; Fang Gu; Dissanayake Gamini (The Institute of Electrical and Electronic Engineers Inc (IEEE), 2004)
    Simultaneous localisation and mapping (SLAM) is the process of estimating the pose of a mobile robot and the locations of landmarks by using sensors. When SLAM is cast as an information extraction procedure, its quality ...
  • A robotic system for steel bridge maintenance: research challenges and system design 
    Liu Dikai; Dissanayake Gamini; Manamperi Palitha; Fang Gu; Paul Gavin; Kirchner Nathan; Chotiprayanakul Pholchai (Australian Robotics and Automation Association, 2008)
  • Sliding Mode-PID Approach for robust Low-Level Control of a UGV 
    Kwok Ngai Ming; Nguyen Minh Tam; Tran Thanh Hung; Ha Quang; Fang Gu (The Institute of Electrical and Electronic Engineers Inc (IEEE), 2006)
    This paper presents an efficient approach for low-level control of an unmanned ground vehicle (UGV) operating in rough terrains. In particular, it tackles with the problem of overshoot in the vehicle braking system ...
  • Swarm Interaction-based Simulation of Occupant Evacuation 
    Fang Gu; Kwok Ngai Ming; Ha Quang (IEEE, 2008)
    The understanding of occupant responses during an evacuation is crucial for improving the design of effective escape routes. An approach, incorporated the swarm behaviour, for simulating the evacuation of occupants from ...
  • Visual Impact Enhancement via Image Histogram Smoothing and Continuous Intensity Relocation 
    Kwok Ngai Ming; Jia Xiuping; Wang Dalong; Chen S.; Fang Gu; Ha Quang (Elsevier Ltd., 2011)
    Image contrast enhancement is a fundamental pre-processing stage in applications requiring image processing operations. Among revenues of available approaches, histogram equalization is a popular and attractive candidate ...