A NSRS Detection Method for Ablation Needles in CT Images

Abstract

In CT image-guided interventional surgery, the rapid and accurate positioning of ablation needle plays a key role in the smooth operation. There is no universal and effective method for line segment detection, especially for the accurate extraction of feature points in image processing. Aiming at the problem of detecting and locating the ablation needle and its tip in CT image-guided interventional surgery, a method of NSRS line segment detection based on Randon transform and sliding window method is proposed. Experiments show that the method can accurately extract the end coordinates of the needle and accurately locate the ablation needle in CT image.