追踪器应该是隐藏的视图，当图像特征他们跟踪要么离开帧或成为阻挡由另一个对象。
Trackers should be hidden from view when the image feature they are tracking either leaves the frame or becomes occluded by another object.
打开动画窗口。第一帧将两个文字的图层都隐藏在蒙版后面，将手机信号线的透明度减少到50%。
Open animation window. For the first frame let the both text layers be hidden behind their masks. Reduce the opacity of radial waves to 50%.
复制这四个帧，隐藏闭着的眼睛层，显示睁着的眼睛层。
Duplicate these four frames and in layer window hide the closed eye layer and unhide the open eye layer.
点击隐藏按钮将删除从当前帧的跟踪点。
Clicking the Hide button will remove the tracker from the current frame.
第一帧将两个文字的图层都隐藏在蒙版后面，将手机信号线的透明度减少到50%。
For the first frame let the both text layers be hidden behind their masks. Reduce the opacity of radial waves to 50%.
同时基于图像信号的相关性、光滑性及一致性的假设，分别对MPEG-2的I-帧、P-帧和B-帧图像提出了相应的错误隐藏技术。
Statistical correlations of the smoothness and consistency in images were used to develop error concealment techniques for I-frame, P-frame, and B-frame MPEG-2.
传统的方法采用图像复制的差错隐藏机制和冗余关键帧抗差错编码结合的技术，由于用与丢失帧距离较远的帧来代替丢失帧，效果不是很好。
The conventional redundant-key-picture error resilience with picture-copy error concealment method may not be efficient due to copy with large distance to the lost picture.
传统的方法采用图像复制的差错隐藏机制和冗余关键帧抗差错编码结合的技术，由于用与丢失帧距离较远的帧来代替丢失帧，效果不是很好。
The conventional redundant-key-picture error resilience with picture-copy error concealment method may not be efficient due to copy with large distance to the lost picture.
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