吉林大学学报(工学版) ›› 2016, Vol. 46 ›› Issue (6): 2067-2073.doi: 10.13229/j.cnki.jdxbgxb201606041

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Accurate fire location method in high and large-span space buildings

LU Ying1, 2, WANG Hui-qin1, 2, QIN Li-ke1   

  1. 1.College of Information and Control Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China;
    2.College of Architecture, Xi'an University of Architecture and Technology, Xi'an 710055, China
  • Received:2015-03-22 Online:2016-11-20 Published:2016-11-20

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Abstract: For the requirements of interior fire location in high and large-span space buildings, an accurate 3D fire location method is proposed. To overcome the difficulty of establishing accurate mathematical model of camera in traditional non-linear calibration, an implicit camera calibration method based on Improved Particle Swarm Optimization (IPSO) algorithm and Least Square Support Vector Machine (LSSVM) is developed. First, the mapping relationship between the plane pixel coordinates and the spatial coordinates is established. Then, IPSO algorithm is applied to search the optimum parameters of the LSSVM regression model to improve the convergence speed and generalization ability. Finally the space positioning of the fire is realized by 3D reconstruction. The proposed method has been applied in fire location in high and large-span space buildings and the results suggest that the method is effective, fast and accurate.

Key words: computer application, high and large-span space buildings, camera calibration, fire location, particle swarm optimization(PSO) algorithm, least square support vector machine(LSSVM)

CLC Number: 

  • TP391
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