A Review on Image Segmentation Techniques

Bone Age Assessment is an important medical practice in pediatrics radiology to assess any skeletal defect or immaturity based on chronological age. The bone age assessment is performed mostly using a bone atlas which contains the images of carpal bone (left wrist). A trained pediatrician matches the radiograph of carpal bone in atlas with that of the radiograph of carpal bone of subject. Based on his/her analysis then, is he/she predicts the bone age. Automation of such trivial task seems necessary and thus many different techniques for automatic bone age assessment exist today. In this paper, a review of these techniques is presented.