计算机对颅颌面影像的自动识别  

Automatic Recognition of Cephalograms by Computer

作　　者：邵金陵[1] 林珠[1] 李东[1] 赵荣椿[2] 任金昌[2] 

机构地区：[1]第四军医大学口腔医学院正畸科,西安710032 [2]西北工业大学计算机科学与工程系,西安710072

出　　处：《口腔医学》2003年第2期71-73,共3页Stomatology

摘　　要：目的 采用现代图像处理技术,进行X线颅颌面影像的计算机自动识别研究,为计算机对X线颅颌面影像的全自动识别、定点、测量分析奠定基础。方法 ①图像信息的获取:在头颅定位仪定位下,拍摄研究对象的正中咬合位时X线颅颌侧位片。拍摄的X线片通过扫描仪将图像信息输入计算机。②图像信息的处理:首先是图像增强,按照需要突出、削弱或去除图像中的某些信息;随后,进行图像分层,利用X线颅颌面侧位片图像灰度分布的特征,将原始图像分层;最后,进行图像重建。结果 图像信息的表达:提取了颅面软、硬组织外轮廓及部分颅颌面硬组织内部结构。结论 初步建立了计算机对X线颅颌面影像的自动识别,为进一步研究奠定了基础。Objective To study automatic recognition of cephalometric images by using image processing techniques. Methods (1)The teenagers with normal occlusion were taken cephalograms in standard posture. The scanner was used to produce digital images of the cephalometric radiographs.(2)We increased the useful information and decreased the unnecessary information within the image, making the image suitable to automatic recognition by computer. We segmented the aim area from the background and reconstructed the image. Results We showed the outline of craniofacial soft-tissues, craniofacial hard-tissues and some contours of craniofacial hard-tissue structures. Conclusion The study showed the potential of the automatic recognition of cephalograms. The results were established for further studies.

关 键 词：颅颌面影像 自动识别 计算机识别 X线片 颅颌侧位片 X线头影测量 

分 类 号：R783.5[医药卫生—口腔医学] R816.1[医药卫生—临床医学]