基于数字图像处理的口腔根管长度测量方法研究

根尖定位和根管长度测量是根管治疗术是否能够成功的关键。X射线医学影像具有动态范围宽,细节丰富和对比度差等特点,由于对比度差牙齿根尖部分和牙槽骨密度相近,在X射线图像上常很难看清楚根尖部分。确定根尖位置是口腔医学上的一个难题。针对这个问题,本文采用了医学混合空间图像增强方法,并在该方法中加入局部直方图均衡化加以改进,实现口腔X图像增强,最终确定根尖位置,测出根管的长度。

Apical positioning and root canal measurement based on digital image processing

Apical positioning and root canal measurement are the key to the success of the toot canal treatment.Because X radial images have characters such as broad dynamic range,contain a lot of details,weak contrast and so on.Dentists concern the root of tooth in oral medicine.It is difficult to distinguish the root of tooth in the X radial image,because the density of the apical is equal to the density of the groove of tooth.This article applies image enhancement method of medical mix space,moreover,this method wa...