Fig. 1From: Fine-grained precise-bone age assessment by integrating prior knowledge and recursive feature pyramid networkIllustration of the proposed method: (1) the U-Net module completes image preprocessing and palm segmentation; (2) fine-grained small ROI detection based on recursive feature pyramid. (3) Maturity of each bone assessment based on transfer learning. (4) Bone age calculation based on the percentile curve of bone maturityBack to article page