辅以CV-GVF方法的测地线活动轮廓模型

针对经典的测地线活动轮廓对初始位置和噪声比较敏感,在有噪声干扰或初始位置距目标边缘较远时,其往往无法准确收敛到目标边缘的问题,通过将由梯度矢量流和CV方法构成的耦合力场与测地线活动轮廓相结合,提出了辅以CV-GVF方法的测地线活动轮廓模型.实验结果表明,该活动轮廓模型在噪声背景中从无需特别设置的初始位置准确收敛到了目标边缘,对初始位置和背景噪声具有较好的适应性.

Geodesic Active Contour Model Aided with CV-GVF Method

Classical geodesic active contour is sensitive to initial location and noise.So,it often fails to converge to the true edge when the initial location is far from target edge or there is noise interference.The geodesic active contour aided with CV-GVF method is therefore proposed by way of combining the geodesic active contour with the coupling force field composed of gradient vector flow and CV method.Experimental results showed that it can converge exactly to the target edge in noise background from any initial location without special setting,i.e.,high adaptability to initial location and background noise.