A Tag Tracking Method Based on Improved Active Contour Model and Optical Flow
基于改进的主动轮廓模型及光流估计的标记线跟踪

In cardiac Magnetic Resonance Image analysis, tracking tag motion is an important step in tissue motion analysis and 3 D motion reconstruction. The paper gives a method using active contour model based on kinetic function to track the tag, and uses three kinds of elastic potential energy, new internal energy and new image energy. The paper also changes the assumption that the initial velocity is zero and takes the optical flow as the velocity, which improves the veracity of the arithmetic. The method is tested on several sequences of cardiac systole MRI. The result indicates the method is effect.