First, the frame difference of two adjacent frames is applied to perform the predetection of cut and gradual transition.

首先，利用相邻两帧之间的帧间差异值对突变和渐变进行预检；

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First, the frame difference of two adjacent frames is applied to perform the predetection of cut and gradual transition.

首先，利用相邻两帧之间的帧间差异值对突变和渐变进行预检；

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