Figure 3
From: Automated detection of cerebral microbleeds on T2*-weighted MRI
Algorithm Illustration. This image illustrates some of the algorithm steps on an SWI image. (A) Initial SWI image, resampled. (B) 2D gradient computation (gradient magnitude pictured). (C) Edges of the slice as output after Canny edge detection. (D) Initial potential ROIs labeled by the circular Hough transform. (E) ROIs remaining after edge exclusion. (F) ROIs remaining after circular grouping and size exclusion. (G) Final ROI marked after CSF exclusion and multi-slice merging. (H) Co-registered lobar map used to quantify distribution of detected microbleeds.
