摘要
在 CT图像表面重建技术中 ,需要进行边缘检测和轮廓跟踪。本文应用改进的小波变换对 CT图像进行边缘检测 ,并充分利用原 CT图像的信息 ,对得到的边缘图进行跟踪和补偿。通过在与边缘方向垂直的小直线邻域内寻找局部峰值 ,可以弥补在边缘检测中丢失的弱边缘。
In this paper, wavelet transform algorithm is use d to detect edge in CT image, and the edge image was tracked and compensated thr ough using the improved CT image information sufficiently. Through finding local peak in the neighborhood of the line which is perpendicular to the edge directi on, we can compensate for the missing edge. The experimental results show that t he algorithm is feasible.
出处
《机械科学与技术》
EI
CSCD
北大核心
2001年第6期962-964,共3页
Mechanical Science and Technology for Aerospace Engineering
关键词
CT表面重建技术
小波变换
边缘检测
边缘跟踪
CT surface reconstruction
Wavelet transform
Ed ge detection
Edge tracking
