Enhancement of Optical Interferometry Fringe Patterns Based on Multiscale Retinex Algorithm

Yibing Hu; Chen Tang; Shan Tao

doi:10.3788/LOP56.241006

Laser & Optoelectronics Progress, Volume. 56, Issue 24, 241006(2019)

Enhancement of Optical Interferometry Fringe Patterns Based on Multiscale Retinex Algorithm

Yibing Hu, Chen Tang^*, and Shan Tao

Author Affiliations

School of Electrical and Information Engineering, Tianjin University, Tianjin 300072, China

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Figures & Tables(13)

Fig. 1. Retinex model diagram

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Fig. 2. Flow chart of proposed algorithm

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Fig. 3. Optical interferometry fringe patterns with uneven illumination

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Fig. 4. Enhanced results of the first optical interferometry fringe pattern. (a) Original image; (b) HE method; (c) DE method; (d) proposed method

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Fig. 5. Enhanced results of the second optical interferometry fringe pattern. (a) Original image; (b) HE method; (c) DE method; (d) proposed method

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Fig. 6. Enhanced results of the third optical interferometry fringe pattern. (a) Original image; (b) HE method; (c) DE method; (d) proposed method

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Fig. 7. Enhanced results of the fourth optical interferometry fringe pattern. (a) Original image; (b) HE method; (c) DE method; (d) proposed method

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Fig. 8. Binarization results in Fig. 4. (a) Original image; (b) HE method; (c) DE method; (d) proposed method

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Fig. 9. Binarization results in Fig. 5. (a) Original image; (b) HE method; (c) DE method; (d) proposed method

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Fig. 10. Binarization results in Fig. 6. (a) Original image; (b) HE method; (c) DE method; (d) proposed method

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Fig. 11. Binarization results in Fig. 7. (a) Original image; (b) HE method; (c) DE method; (d) propsoed method

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Table 1. Scales and weight parameters for proposed method
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Table 1. Scales and weight parameters for proposed method
Parameter Fig.4 Fig.5 Fig.6 Fig.7
σ_i 10, 40,120 10, 40,120 10, 54,167 10, 54,167
ω_i $\begin{matrix} \frac{1}{5} \end{matrix}$ , $\begin{matrix} \frac{2}{5} \end{matrix}$ , $\begin{matrix} \frac{2}{5} \end{matrix}$ $\begin{matrix} \frac{1}{5} \end{matrix}$ , $\begin{matrix} \frac{2}{5} \end{matrix}$ , $\begin{matrix} \frac{2}{5} \end{matrix}$ $\begin{matrix} \frac{1}{3} \end{matrix}$ , $\begin{matrix} \frac{1}{3} \end{matrix}$ , $\begin{matrix} \frac{1}{3} \end{matrix}$ $\begin{matrix} \frac{1}{3} \end{matrix}$ , $\begin{matrix} \frac{1}{3} \end{matrix}$ , $\begin{matrix} \frac{1}{3} \end{matrix}$

Table 2. Comparison of image gradient indexes
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Table 2. Comparison of image gradient indexes
Method Fig.4 Fig.5 Fig.6 Fig.7
Original method 20.06 23.03 4.44 14.11
HE method 64.10 64.77 6.78 20.42
DE method 63.50 63.96 3.81 9.21
Our method 79.56 70.21 20.52 25.00

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Yibing Hu, Chen Tang, Shan Tao. Enhancement of Optical Interferometry Fringe Patterns Based on Multiscale Retinex Algorithm[J]. Laser & Optoelectronics Progress, 2019, 56(24): 241006

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