针对模式抖动加网技术在光栅防伪中的应用问题，通过对阈值矩阵进行改进，提出了在一定范围内随机选择阈值矩阵的模式抖动加网的方式，实现了随机矩阵的模式抖动加网方法在光栅防伪技术中的较好应用。

The threshold matrix was improved for the application of pattern jitter screening in grating anti-counterfeit technology. A screening method by using random threshold matrix in a certain range was put forward. Better result was achieved by test of this method. The application of random matrix pattern jitter in anti-counterfeit printing was realized.