Zhao YANG, Pengcheng YANG, Mengmeng ZHANG, Yuan XIAO, Hui LIU. Study on Correction Method of Local Geometric Distortion in Projection Phantom Imaging[J]. Acta Photonica Sinica, 2022, 51(3): 0311004
- Acta Photonica Sinica
- Vol. 51, Issue 3, 0311004 (2022)
Fig. 1. Imaging optical model
Fig. 2. Schematic of projection distortion correction
Fig. 3. Distortion correction flow chart
Fig. 4. Suspension test
Fig. 5. Projector self-calibration
Fig. 6. Grid marking
Fig. 7. Segmentation image
Fig. 8. Diagram of perspective and coordinate system modeling
Fig. 9. Schematic of fluoroscopic imaging correction
Fig. 10. Projector cache image
Fig. 11. Single plane image correction
Fig. 12. Correction data of single projection image
Fig. 13. Multiplane image correction
Fig. 14. Experimental test chart
Fig. 15. Graph edge length data line chart
Fig. 16. Graph angle data line chart
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Table 1. The projection correction size of single projection image （mm）
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Table 2. The correction projection angle of single projection image
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Table 3. Image projection size before correction （mm）
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Table 4. Image projection angle before correction
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Table 5. Image projection size after correction （mm）
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Table 6. Image projection inner angle after correction
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