人臉對齊演算法常用評價標準

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						<p><strong>人臉對齊常用評價標準</strong></p>
 

1 the inter-ocular distance normalized error

       
       其中xixi也可以用兩外眼角間距離、人臉shape外接矩形對角線長度代替

2 the mean normalized error (MNE)

       
       符號意義與上面相同，僅僅多了一項平均項

3 the area-under-the-curve (

AUCaAUCa)

       AUCaAUCa值不像平均誤差那樣受單個點誤差較大而發生較大變化，非常敏感
       詳見：https://blog.csdn.net/liweibin1994/article/details/79462554

4 the Cumulative Errors Distribution (CED) curve

       CED與AUC有些類似，但又不同；如下圖（來自Look at Boundary論文）