Method for classifying radiographs
A method for classifying radiographs. The method includes the steps of: accessing a radiograph; categorizing the radiograph into pre-determined classes based on gross characteristics of the radiograph, and recognizing the image contents in the radiograph.
1 . A method for classifying a radiographic image, comprising the steps of:
acquiring a radiographic image;
categorizing the radiographic image into pre-determined classes based on gross characteristics of the radiographic image; and
recognizing the exam type of the radiographic image with respect to body part and projection view.
2 . The method of claim 1 , wherein the step of categorizing the radiographic image comprises the steps of:
segmenting the radiographic image into foreground, background and anatomy regions;
classifying a physical size of the anatomy region;
generating an edge direction histogram of the anatomy region;
classifying a shape pattern of the edge direction histogram; and
categorizing the radiographic image into the pre-determined classes based on gross characteristics.
3 . The method of claim 2 , wherein the gross characteristics include a physical size of the anatomy region and the shape pattern of the edge direction histogram.
4 . The method of claim 1 , wherein the step of recognizing the exam type of the radiograph comprises the steps of:
performing a shape recognition according to a pre-trained shape model;
performing an appearance recognition according to a pre-trained appearance model; and
combining the shape recognition and the appearance recognition using an inference engine.