这些关键帧创造出一个序列达到动画的效果。

These keys create the sequence that enables animation.

youdao

跟踪变换后的表情特征弹性图序列，采用图像差分方法，检测表情特征处于极大或夸张状态的关键帧。

Through tracking a series of elastic graphs, the key-frames, which contain expression features in exaggerated intensity, can be detected based on images differentiating.

youdao

利用关键帧的反射对称作为步态特征识别测试序列。

A method using reflective symmetry of key frames is proposed in the paper as gait feature to recognize test sequence.

youdao