分析系数 meaning in English

coefficient of analysis

Then , spherical harmonic transformation is used to generate some data for embedding watermarks . as a result , the watermarks can be embedded in the fourier - frequency domain of the original mesh . experimental results showed that our watermarking algorithm is robust since watermarks can be extracted without mesh alignment or re - meshing under a variety of attacks
提出了基于球面参数化的三维网格模型水印算法：利用网格全局球面参数化的方法得到网格的球面调和分析系数，将水印嵌入调和分析系数中，然后进行相应的逆变换得到嵌入水印的网格。