Applications Of Image Processing And Pattern Recognition Technology In The System Of Computer-Assisted Bone-Age Assessment

In the research of pedology and physical training , bone-age has an important role. This method has reliability problems between different observers , and the efficiency of manpower assessement is too low to suffice more demands. The system of bone-age assessment is raised in this background. As a substitute of manpower assessment , this system is based on The Standards Of Estimating Skeletal Maturity For Chinese (Method of CHN scoring). It is a joint production of iatrology, technology of image processing and pattern recognition technology , etc.This paper put forward an analysis method of digital image. The analysis starts with a preprocessing function in Hand and Wrist X-ray-images; Then, these images are unified; Next, epiphyseal/metaphyseal regions of interest(EMROIs) are extracted while doing an independent processing in the wrist region(K-L transform), which improves the method raised by Mr. Lv and gains a better result . Extracted features describe the stage of skeletal maturity more objectively than visual comparison.