Kinect-Based Correction of Overexposure Artifacts in Knee Imaging with C-Arm CT Systems

Figure 9

(a) shows exemplary values for an overexposed projection. Due to the saturation, there is no reliable information beyond the transition points to the overexposed regions and . For correction, the calculated intersection lengths (b) are normalized to the projection value at and and used to extrapolate the boundary of the saturated object (c).

(a)

(b)

(c)