Fig. 11.

An example blob detection error highlighted within dotted cyan circle. A: Image patch extracted from WSI annotation map, indicating positions and shapes of non-sclerosed (blue) and sclerosed (red) glomeruli. B: Probability map for the same image patch. C: Blob detection results using fully convolutional model prediction label map as input. Solid circles indicate confirmed matches with annotations, X’s mark incorrect glomerulus detections, and open rectangles indicate annotated glomeruli that were overlooked by the model. The blob detection algorithm fails to differentiate the model’s correctly-identified adjoining sclerosed glomeruli in this instance.