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基于光纤FP干涉仪的压力传感器的制作方法

成果领域:

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成果归属企业: 深圳大学

成果鉴定时间:

成果介绍

本发明公开了一种基于混合感知哈希的视频篡改检测方法和装置，通过在待检视频的每一帧图像上随机产生多个矩形块，并对各个矩形块依次进行编号，其中，各个矩形块互相交叠，各个矩形块的大小随机产生；得到对应的结构哈希向量和哈希序列；根据待检视频和原始视频的结构哈希向量计算待检视频和原始视频中对应帧的结构特征距离；根据待检视频和原始视频的哈希序列计算待检视频和原始视频的时域特征距离；根据所述结构特征距离和时域特征距离得出待检视频和原始视频的特征距离；将所述特征距离与一设定的阈值进行比较，当所述特征距离小于所述阈值时，则待检视频没有被篡改；反之，则被篡改；大大提高了视频篡改检测速度和准确率。

成果应用案例介绍

信息通信>视频>传感视频; 测量实验>检测方法>篡改检测方法

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