基于灰度形态学的牙齿图像分割方法

The segmentation method of teeth image based on gray morphology

目的:针对口腔内窥镜拍摄的口腔牙齿图像特点,提出了一种简单有效的分割方法。方法:首先利用灰度形态学中的开启操作除去牙齿图像中的"亮片"背景;再通过中值滤波除去图像中的噪声;最后根据图像灰度设置的阈值对图像进行分割,并检测出图像的边缘和特征点。结果:该方法能够有效地把牙齿从图像中分割出来,利用边缘获取的特征点能够为后期牙齿的三维重建提供有效的参数。结论:基于灰度形态学的牙齿图像分割法可以有效地把牙齿从图像中分割出来。

Objective： To propose a simple image segmentation method,which is based on the teeth image acquired by oral cavity endoscope.Methods：Firstly,removing the sequins of the image by the open operation of morphology;Secondly,removing the noise of image by the value of filtering;Lastly,segmenting the image through the parameters gained by the gray value of the image,detecting the edge of the teeth image and corners.Results：This method can separate the teeth out from the image effectively,and the corners can offer some available parameter for the 3D reconstruction of the teeth.Conclusion：The method can segment the teeth from the image effectively.