Finally, three approaches are studied to further improve steganalytic performance from the angles of holistic statistical features, ensemble learning and the scale of training database.
同时从统计特征整体性、集成学习方法和训练样本规模三个角度研究了进一步提高隐密分析性能的途径。
参考来源 - 隐密对抗的理论及方法研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Principal component analysis (PCA) is used in data compressing and statistical features extracting.
主分量分析技术通常用于数据压缩和统计特征的提取。
The statistical features of the texture images is computed directly from DCT coefficients, and used for image retrieval.
该方法在DCT压缩域，通过直接对DCT系数计算，获得图像纹理的统计特征，并作为检索的依据。
Utilizing these statistical features, we can simulate the design ground motion founded on the theories of non-stationary time history.
应用这些统计特征，可模拟出符合统计要求的基于非平稳时间历程的设计地震动。
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