扭曲到底起什么作用？

qq545053133

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Random warp is used to generalize a model so that it correctly learns face features and expressions in the initial training stage but as long as it's enabled the model may have trouble learning the fine detail - because of it it's recommended to keep this feature enabled as long as your faces are still improving (by looking at decreasing loss values and faces in the preview window improving)


在外网上找到了这段解释。我个人的理解是，扭曲训练是学习src的表情和脸部特征，那么fine detail指的又是什么呢？


是不是说扭曲训练练习的是表情，而关掉扭曲后练习的是具体五官呢？

jx5447225

这个帖子解释的还算比较清楚 https://dfldata.xyz/forum.php?mo ... &extra=page%3D1

king99

我是这样理解的，扭曲可以更快匹配大致脸找到练出一个大致形状。需要精细训练的时候，就可以关掉了

lknet

扭曲给电脑更大的变数,得到的结果更丰富宽容度更好,但可能不是十分精确
关掉扭曲给电脑的更准确,得到的结果更精确但是宽容度就差.
所以开扭曲不容易炸,就是因为结果丰富宽容度好.

nancy

更换DST素材的时候需要重新开随机扭曲吗