Fig. 8. Preliminary results of lesion detection on chest radiographs, by using faster R-CNN architecture.

Each result set is composed of 3 rows. First row shows faster R-CNN results, and ground truth lesion mask is delineated by radiologists in second row. Automatic description is provided in third row.

A. Faster R-SNN architecture. B. Proposed regions of interest. C. Multiple lesion detection results. R-CNN = regional-convolutional neural network