区域生长型分水岭算法及其在图像序列分割中的应用

针对物体基视频编码中的图像分割，提出了一种区域生长的分水岭算法，它直接对要分割的图像而不是其形态梯度信号进行分割，克服了传统形态分割方法使用形态梯度信号而导致轮廓信息丢失的缺点。此外，在具体实现算法时，采用了一种基于分级队列结构进行图像扫描的巧妙方法，大大提高了算法的效率。模拟结果表明，该算法能有效地分割运动物体，能较精确地定位运动物体的边缘。

A Region-growing Version of Watershed Algorithm and Its Application to Segmentation of Image Sequences

This paper proposes a region growing version of watershed algorithm for image segmentation in the object based video coding system.This algorithm works directly on the image to be segmented in stead of the morphological gradient signal and solves the problem existing in the classical morplological segmentation approach in which the use of the morphological gradient results in a loss of contour information.Furthermore,in order to efficiently implement this algorithm,the paper proposes a smart image scanning approach based on hierarchical queues.Simulation results demonstrate the efficiency of the proposed algorithm.The main advantage of this algorithm is that the boundaries of segmented moving objects are precisely located.