Cerebral Arterial Stenosis Detection Based on a Retained Two-Stage Detection Algorithm

Figure 9

Prediction of retrained Faster R-CNN. (a) Raw image, (b) Faster R-CNN, (c) Faster R-CNN + dcn, (d) Faster R-CNN + dcn + nonlocal, and (e) Faster R-CNN + dcn + nonlocal + cascade detector.