目的 :为实现 X线头影测量的自动化 ,开发自动 X线头影测量分析系统。方法 :应用计算机图形图像处理技术 ,建立自动软组织 X线头影测量分析系统 ,并经临床 35例正畸患者的对比测量分析。结果 :手测与机测具有良好的一致性 ,自动识别的速度显著快于人机交互及人工定点。结论 :自动软组织 X线头影测量分析系统能更准确更方便地对软组织进行测量。 Objective: To develop automated X-ray cephalometric analysis system for the automation of X-cephalometry. Methods: The automated soft tissue X-ray Cephalometric analysis system was established by using computer graphics and image processing technology. The clinical data of 35 orthodontic patients were compared and analyzed. Results: There was a good consistency between hand measurement and machine measurement, and the speed of automatic identification was significantly faster than that of human-computer interaction and artificial positioning. Conclusion: The automatic soft tissue X-ray Cephalometric analysis system can measure the soft tissue more accurately and conveniently.