阿尔茨海默病目前在临床上的诊断标准就是判断是否发生了海马体积上变异，该病的程度与海马体积的萎缩量有着密切的关系。

分水岭算法最大的缺陷是过分割问题比较严重，利用分水线处能量值最小的理论，可以调整分水岭算法获得的轮廓，限制过分割。

-Alzheimer' s disease currently in clinical diagnostic criteria is to determine whether the mutation occurred on hippocampal volume, extent of the disease and the shrinkage of hippocampal volume is closely related to the amount. Watershed algorithm is the biggest flaw is more serious problem of over-segmentation using watershed line of the theoretical minimum energy value, can be adjusted to obtain the outline of the watershed algorithm to limit over-segmentation.