Xia Wang, Yasheng Zhang, Can Xu, Peng Li, Feng Zhang. Bidirectional Reflectance Distribution Function Modeling Approach of Space Objects’ Fold Material[J]. Acta Optica Sinica, 2019, 39(10): 1024001
- Acta Optica Sinica
- Vol. 39, Issue 10, 1024001 (2019)
Fig. 1. Model and schematic diagrams of fold surface. (a) Fold surfaces with different heights and amounts of fluctuations; (b) diagram of irradiated fold surface
Fig. 2. Diagram of surface cell being irradiated
Fig. 3. BRDF of fold material under different incident zenith angles
Fig. 4. Two fold surfaces’ training results of BRDF model with incident angle of 45°. (a) Fold material Ⅰ; (b) fold material Ⅱ
Fig. 5. Comparison of three models of fold material Ⅰ. (a) Five-parameter model; (b) improved Phong model; (c) BP model
Fig. 6. Comparison of three models of fold material Ⅱ. (a) Five-parameter model; (b) improved Phong model; (c) BP model
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Table 1. Improved Phong model parameters of silvery kapton
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Table 2. Error comparison of fold material Ⅰ
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Table 3. Error comparison of fold material Ⅱ
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