Coronary Plaque Boundary Enhancement in IVUS Image by Using a Modified Perona-Malik Diffusion Filter

Figure 6

Boundary calculation procedure. (a) IVUS image in Cartesian coordinate. (b) Transposed image of (a) into polar coordinate. (c) Filtered image of (b) by modified PMD filter. (d) Image separability of (c) by weighted image separability. (e) Search area by placed automatic seed points. (f) Plaque boundary calculation results by fuzzy inference.

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