最后利用扩频序列的自相关函数特征检测出水印信息,检测过程中不需要原始载体图像。
Finally, making use of autocorrelation function characteristic of spread spectrum sequence, watermark information was detected. In the detection process, it is not requisite for initial carrier image.
另外,蛋白质序列还可用其它特征提取方法提取的特征向量来表示,如氨基酸组成成分、加权自相关函数和矩描述子。
In addition, the protein can be represented as other feature vectors based on amino acid composition (AAC), weighted auto-correlation function and Moment descriptor methods.
本文提出了以相关理论为基础,以图象中圆环参数自相关函数的最大值及互相关函数的最大值旋转不变为特征的图象匹配方法。
This paper presents a match method for letter images based on the coherence theory and properties which the maximum correlative values of the ring-data, however to rotate, are constant.
本文提出了以相关理论为基础,以图象中圆环参数自相关函数的最大值及互相关函数的最大值旋转不变为特征的图象匹配方法。
This paper presents a match method for letter images based on the coherence theory and properties which the maximum correlative values of the ring-data, however to rotate, are constant.
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