Optimization Design of OTSDF Filter Based on Wavelet Transform

Fig. 1. Rectangle spot after Mexican-hat wavelet transform with different scale coefficients a. (a) Rectangle spot; (b) a=0.009; (c) a=0.01; (d) a=0.03; (e) a=0.05; (f) a=0.1

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Fig. 2. Plane expanded view of the system

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Fig. 3. Perfermance chart of rotation distortion invariant recognition of W_OTSDF filter and OTSDF filter. (a) PCE; (b) PSR; (c) SNR

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Fig. 4. Perfermance chart of scaling distortion invariant recognition of W_OTSDF filter and OTSDF filter. (a) PCE; (b) PSR; (c) SNR

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Table 1. Average added value table of three recognization target perfermance of W_OTSDF filter
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Table 1. Average added value table of three recognization target perfermance of W_OTSDF filter
Item Rotation /% Scaling /% Both rotation and scaling /%
PCE 47.7 60.1 30.3
PSR 9.4 26.1 23.3
SNR 13.1 10.7 2.3

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Jun Yu, Ping Xu, Tuo Yang, Xiongchao Li, Haixuan Huang, Guanxiao Cheng. Optimization Design of OTSDF Filter Based on Wavelet Transform[J]. Acta Optica Sinica, 2017, 37(11): 1123001

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