这些关键帧创造出一个序列达到动画的效果。
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.
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.
实验表明，该方法能较好的提取出视频序列的关键帧。
Experimental results demonstrate that the method can better distill the key frame in the video order.
关键帧动画是利用计算机的运算能力，按照运动学和动力学的规律计算生成两个关键动作之间的运动动作序列的动画方法。
Key frame animation is a kind of computer animation method. This method calculates frames between two key frames automatically according to kinematics and kinetics.
将视频序列通过关键帧提取的方式转换成静态图像，然后利用图像处理技术进行分析是视频处理的一种有效方法。
The approach of retrieve key frames from video and then process them is an efficient way to process video data.
其次，提取视频图像序列中的关键帧，对关键帧图像进行车牌的定位处理。
Secondly, it extracts a key frame from the video image sequence and makes a license plate location on the frame.
用背景差方法得到运动人体的轮廓，通过步态周期分析提取步态序列的关键帧。
Body silhouettes are extracted by background subtraction, and cyclic gait analysis is performed to extract key frames.
用背景差方法得到运动人体的轮廓，通过步态周期分析提取步态序列的关键帧。
Body silhouettes are extracted by background subtraction, and cyclic gait analysis is performed to extract key frames.
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