查询词典 matrix transform

"Some painters transform the sun into a yellow spot, others transform a yellow spot into the sun."

"有的画家把太阳画成黄点，有的画家则把黄点化为太阳。"

There are painter s who transform the sun to a yellow spot, but there are others who with the help of their art and their intelligence, transform a yellow spot into the sun.

有些画家把太阳画成一个黄斑，但有些画家借助于他们的技巧和智慧把黄斑画成太阳。

Automotive Logistics; inventory control; demand fluctuations; Fourier transform; Z transform; frequency domain

汽车物流；库存控制；需求波动；傅里叶变换； Z变换；频域

Conventionally, computing the discrete Fourier transform that is equivalent to sampling of the z transform of the input sequence at equally spaced angles around the unit circle.

在以往，我们计算离算傅立叶转换相当於在z平面的单位圆上均匀的取样，然而，在某些应用上，非均匀的取样会更有效率。

On the basis of the relation, we will prove some useful properties of the discrete Zak transform which lay the foundation for the computation of discrete Gabor transform.

利用连续Zak变换和离散Zak变换的关系，证明了离散Zak变换的一些性质。为进一步研究离散Gabor变换建立了数学基础。

We will strictly derive the discrete Zak transform in more general conditions and establish the relationship between the continuous and the discrete Zak transform.

一、首次给出了一般条件下的离散Zak变换及性质。本文对一般条件下的离散Zak变换进行了严格的推导，并给出了连续Zak变换和离散Zak变换的关系。

Clinically, most MDS patients transform to acute myeloid leukemia, but a few MDS patients transform to aute lymphocytic leukemia, which indicates multipotential stem cells were affected in a few MDS.

临床也发现，多数MDS发展为急性髓系白血病，但也有少数演变为急性淋巴细胞白血病，提示少数MDS病变发生于多能干细胞。

Finally, we give the related image fusion evaluation, the results show that fusion effect based on Bandelet transform is better than wavelet transform.

最后介绍了相关的图像融合评价指标，结果显示，基于Bandelet变换的融合效果优于小波变换。

Next, the Bandelet transform is taken on each directional subband. The proposed multidirectional and multiscale transform with critical sampling can represent the geometrical features such as edges and texture more sparsely, which is of great benefit to image compression.

原始的Contourlet变换有大于1的冗余度而不适于图像压缩的要求，采用传统的张量积小波变换取代其中的拉普拉斯金字塔式变换可获得非冗余的变换形式[8]，Bandelet变换是一种基于图像边缘的变换方法，它能自适应地跟踪图像的几何正则方向。

The wavelet transform suffers from the limitation of poor directional selectivity. To overcome this disadvantage, a novel scheme with joint Contourlet and Bandelet transform is proposed.

针对小波变换方向选择性差的局限，提出了一种基于Contourlet的Bandelet变换。

However it can often be frust ating for a child when people are unable to pronounce their name.

但它往往可以令人沮丧的一个孩子当人们无法断言他们的名字。

All these compounds were obtained from this genus for the first time. Compound, 4-cumylphenol, was a new nature product.

所有化合物均为首次从本属海藻中分离得到，其中4cumylphenol为新天然产物。