But Liang rallied magnificently, taking the next four frames to give him a narrow lead over his compatriot.

但是梁文博强势反攻，连续拿下后面四局，以微弱优势领先同胞选手。

This is a transformation that is applied to the previous and the next frame to produce the intermediate image.

这是一种在先前和后续的画面中被用以制作中间画面的转换。

However, a key observation is that it is also easier because in return, we have access to more information that comes from the previous and the next frames in the video.

但是，我们发现它其实又更为简单，因为，作为回报，我们可以从视频的上一帧和下一帧中得到更多的信息。

And clearly, we know the fact that Charlie Chaplin is supposed to be in the middle of the image only because we have this information from the previous and next frames.

我们很清楚地知道查理•卓别林应该在画面正中，那仅仅是因为我们从上一帧和下一帧得到了这个信息。