Three-dimensional temperature field measurement of flame using a single light field camera

Sun, Jun and Xu, Chuanlong and Zhang, Biao and Hossain, Md Moinul and Wang, Shimin and Qi, Hong and Tan, Heping (2016) Three-dimensional temperature field measurement of flame using a single light field camera. Optics Express, 24 (2). pp. 1118-1132. ISSN 1094-4087 (https://doi.org/10.1364/OE.24.001118)

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Abstract

Compared with conventional camera, the light field camera takes the advantage of being capable of recording the direction and intensity information of each ray projected onto the CCD (charge couple device) sensor simultaneously. In this paper, a novel method is proposed for reconstructing three-dimensional (3-D) temperature field of a flame based on a single light field camera. A radiative imaging of a single light field camera is also modeled for the flame. In this model, the principal ray represents the beam projected onto the pixel of the CCD sensor. The radiation direction of the ray from the flame outside the camera is obtained according to thin lens equation based on geometrical optics. The intensities of the principal rays recorded by the pixels on the CCD sensor are mathematically modeled based on radiative transfer equation. The temperature distribution of the flame is then reconstructed by solving the mathematical model through the use of least square QR-factorization algorithm (LSQR). The numerical simulations and experiments are carried out to investigate the validity of the proposed method. The results presented in this study show that the proposed method is capable of reconstructing the 3-D temperature field of a flame.

  • Item type:Article
    ID code:60684
    Dates:
    Date
    Event
    25 January 2016
    Published
    6 January 2016
    Accepted
    Notes:© 2016 Optical Society of America. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modifications of the content of this paper are prohibited.
    Subjects:Science > Physics > Optics. Light
    Department:Faculty of Engineering > Chemical and Process Engineering
    Depositing user: Pure Administrator
    Date deposited:17 May 2017 08:53
    Last modified:11 Apr 2024 01:19
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/60684
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