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- The wavelet transform divides image into different but interrelated multi-resolution and multi-level sub-bands, so quantization coding strategy of image wavelet coefficient has great flexibility. To address to energy aggregation and correlated fe
JISUANFANGFA23
- 猜想:通过对Hilbert矩阵的预处理,能改善Hilbert的病态性质。 验证:根据不同 建立对应的Hilbert矩阵,计算该矩阵的2-范数的条件数,其次计算经过预处理后的H^矩阵的2-范数的条件数,并绘制 曲线。编程实现见附录1中的solution(2)。 实际编程中,分别取 , , , ,可以发现所得到的变化曲线 在 时, 的取值较为平缓的减小,且均小于0。而随着Hilbert矩阵阶数的增大, 的取值在 区间中振荡,主要集中在 ,且多数取值 。则对多数的Hilbert矩阵,其条件数在
JIEXIANXINGFANGCHENGZU
- 解线性方程组的列主元素高斯消去法和LU分解法实验报告-Conjecture: By Hilbert matrix preconditioning can improve the pathological nature of Hilbert.establishment of the corresponding Hilbert matrix, the matrix calculation 2- norm condition number, followed by the calculation 2