3D Digital Modeling of Dental Casts from Their 3D CT Images with Scatter and Beam-Hardening Correction
Abstract
:1. Introduction
2. Methods
2.1. Scatter Signal Estimation in the Projection Image
2.2. Combined Algorithm (Beam-Hardening and Scatter Artifact Reduction)
2.3. Evaluation Phantoms
3. Results
3.1. Scatter Artifact Correction
3.2. Combination of Beam-Hardening and Scatter Artifact Correction
3.3. 3D Modeling Error Analysis
4. Discussion
5. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Data Availability Statement
Conflicts of Interest
References
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Figure of Merit | Uncorrected | Corrected |
---|---|---|
Contrast | 722.84 | 1091.25 |
CNR | 12.25 | 23.5 |
Homogeneity | 21.95 | 30 |
Noise in PMMA | 33.79 | 27.33 |
MTF@10% (LP/mm) | 2.18 | 2.42 |
MTF@50% (LP/mm) | 1.12 | 1.12 |
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Hegazy, M.A.A.; Cho, M.H.; Cho, M.H.; Lee, S.Y. 3D Digital Modeling of Dental Casts from Their 3D CT Images with Scatter and Beam-Hardening Correction. Sensors 2024, 24, 1995. https://doi.org/10.3390/s24061995
Hegazy MAA, Cho MH, Cho MH, Lee SY. 3D Digital Modeling of Dental Casts from Their 3D CT Images with Scatter and Beam-Hardening Correction. Sensors. 2024; 24(6):1995. https://doi.org/10.3390/s24061995
Chicago/Turabian StyleHegazy, Mohamed A. A., Myung Hye Cho, Min Hyoung Cho, and Soo Yeol Lee. 2024. "3D Digital Modeling of Dental Casts from Their 3D CT Images with Scatter and Beam-Hardening Correction" Sensors 24, no. 6: 1995. https://doi.org/10.3390/s24061995