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Figure 3 | BMC Medical Informatics and Decision Making

Figure 3

From: Automated ventricular systems segmentation in brain CT images by combining low-level segmentation and high-level template matching

Figure 3

Exhaustive symmetric position search. This is the schematic description to detect approximate position of the ideal midline. First the skull is segmented because the intensity is much higher then other brain tissue. Then mass center is calculated and rotate the skull around it to find the best symmetric position. Both exterior edge and interior edge symmetry features are measured to find a better symmetry score.

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