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Enhanced calibration method for wall-mounted RGSC cameras: Mitigating baseline drift caused by CT couch sagging

Fig 5

Comparison of different calibration methods.

(a) Varian calibration method; (b) The proposed calibration method. The yellow segment indicates the CT beam-on time.

Fig 5

doi: https://doi.org/10.1371/journal.pone.0332262.g005