gradient matrix造句

First we introduce theory and merits of graphic wavelet transform , then mallat algorithm , multi - scale characteristic , quadratic b - alpine wavelet and the coefficients of this filters , and etc . later we calculate the gradient matrix based on the result of wavelet transform , thin the contour and get spatical information
先介绍图像小波分解方法的原理、 mallat快速算法、多尺度特性、 3阶b -样条小波基函数的选取及其滤波器系数的推导等，然后根据小波变换结果计算梯度矢量矩阵，进行非极大值抑制和双阈值化，提取目标轮廓。
It's difficult to find gradient matrix in a sentence. 用gradient matrix造句挺难的