Dongchen Dai, Lina Zheng, Yu Zhang, Haijiang Wang, Qi Kang, Yang Zhang. Sharpness Detection Method for Aerial Camera Images Based on Digital Elevation Model[J]. Acta Optica Sinica, 2023, 43(6): 0610001
- Acta Optica Sinica
- Vol. 43, Issue 6, 0610001 (2023)
Fig. 1. Schematic diagram of aerial imaging model
Fig. 2. Schematic diagram of reprojection error
Fig. 3. Schematic diagram of Gauss imaging theorem and focal plane variation
Fig. 4. Schematic diagram of sharpness detection method based on DEM
Fig. 5. Sharpness detection result of weak feature areas by proposed algorithm
Fig. 6. Aerial image obtained after sharpness detection by proposed algorithm and mechanical structure adjustment
Fig. 7. Sharpness detection normalization function curves of classical sharpness detection algorithms and proposed algorithm in weak characteristic areas
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Table 1. Comparison of detection accuracies of different sharpness detection methods for strong characteristic areas and weak characteristic areas
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Table 2. Influence of feature point position in weak feature areas on sharpness detection accuracy
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