Abstract

A novel 3-D temperature field reconstruction method is proposed in this paper, which is based on multiwavelength thermometry and Hopfield neural network computed tomography. A mathematical model of multi-wavelength thermometry is founded, and a neural network algorithm based on multiobjective optimization is developed. Through computer simulation and comparison with the algebraic reconstruction technique (ART) and the filter back-projection algorithm (FBP), the reconstruction result of the new method is discussed in detail. The study shows that the new method always gives the best reconstruction results. At last, temperature distribution of a section of four peaks candle flame is reconstructed with this novel method.

© 2005 Chinese Optics Letters

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  2. X. G. Sun, The theory and experiment of multispectral (multiwavelength) radiation thermometry, in Doctorial Dissertation of Harbin Institute of Technology (1998) p. 12.
  3. Y. M. Wang and W. X. Lu, Signal Processing 26, 17 (1992).
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  7. N. Ohyama, S. Ohki, S. Inoue, J. Tsujiuchi, and T. Honda, JOSA A 4, 318 (1987).

1997

Y. Wang and F. M. Wahl, IEEE. Proc: Vis. Image Signal Process 144, 233 (1997).

1996

Y. Q. Gao, Chin. J. Lasers B 5, 150 (1996).

1995

J. M. Dai and Z. X. Zhu, J. Infrared Millim. Waves 14, 461 (1995).

1993

D. Verhoeven, Appl. Opt. 20, 3736 (1993).

1992

Y. M. Wang and W. X. Lu, Signal Processing 26, 17 (1992).

1987

N. Ohyama, S. Ohki, S. Inoue, J. Tsujiuchi, and T. Honda, JOSA A 4, 318 (1987).

Appl. Opt.

D. Verhoeven, Appl. Opt. 20, 3736 (1993).

Chin. J. Lasers B

Y. Q. Gao, Chin. J. Lasers B 5, 150 (1996).

IEEE. Proc: Vis. Image Signal Process

Y. Wang and F. M. Wahl, IEEE. Proc: Vis. Image Signal Process 144, 233 (1997).

J. Infrared Millim. Waves

J. M. Dai and Z. X. Zhu, J. Infrared Millim. Waves 14, 461 (1995).

JOSA A

N. Ohyama, S. Ohki, S. Inoue, J. Tsujiuchi, and T. Honda, JOSA A 4, 318 (1987).

Signal Processing

Y. M. Wang and W. X. Lu, Signal Processing 26, 17 (1992).

Other

X. G. Sun, The theory and experiment of multispectral (multiwavelength) radiation thermometry, in Doctorial Dissertation of Harbin Institute of Technology (1998) p. 12.

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