Xiaohua XIA, Qian ZHAO, Huatao XIANG, Xufang QIN, Pengju YUE. SIFT feature extraction method for the defocused blurred area of multi-focus images[J]. Optics and Precision Engineering, 2023, 31(24): 3630
- Optics and Precision Engineering
- Vol. 31, Issue 24, 3630 (2023)
Fig. 1. Defocused imaging diagram
Fig. 2. Registered multi-focus images for experiments
Fig. 3. Comparison of feature extraction and matching effect between conventional and proposed methods
Fig. 4. Unregistered multi-focus images for experiments
Fig. 5. Result of feature extraction and matching of unregistered multi-focus images
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Table 1. Comparison of feature matching quantity between the proposed method and the four comparison methods
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Table 2. Comparison of feature extraction errors between the proposed method and the four comparison methods
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Table 3. Comparison of number of matching features between proposed method and comparison methods
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