1) discrete orthogonal transforms
离散正交变换
1.
Considering the general discrete triangular transform Y_k=a_k2[]N∑N[]n=0a_nx_ncos[α+β(k+ω)(n+δ)1[]Nπ,k=0,1,2,…,N,where α,β,ω,δ are real parameters,when α,β,ω,δ and a_n,a_k are taken as values,types of discrete orthogonal transforms including DCT,DST,DWT are achieved.
考虑一般的离散三角变换Yk=ak2N∑n=0anxncos[α+β(k+ω)(n+δ)1N]π,当实参数α,β,ω,δ以及an,ak取不同值可以得到包括DCT,DST以及DWT在内各种常用离散正交变换。
2) orthogonal discrete wavelet transform
正交离散小波变换
1.
The new wavelet image restoration (WL-R) algorithm and the new single wavelet image restoration algorithm (SWL-R) based on orthogonal discrete wavelet transform are proposed by using the orthogonal discrete wavelet transform and generalized cross validation in evaluating the optimal threshold δ, and combining with Luck-Richardson super-resolution image restoration algorithm (L-R).
利用正交离散小波变换,通过最小化广义交叉确认函数求取小波变换渐近最优阈值,与L-R超分辨力图像复原算法结合,提出了基于正交离散小波变换的L-R法(WL-R)和单次运算小波变换的L-R法(SWL-R)。
3) Discrete orthogonal wavelet transform
离散正交小波变换
4) Discrete Biorthogonal Wavelet Transform
离散双正交小波变换
5) discrete sine transform
离散正弦变换
1.
The fast algorithms are proposed for the computation of the running discrete cosine transform- I (DCT-- I ), discrete sine transform- I (DST-I ), discrete cosine transform-Ⅲ (DCT- Ⅲ ), and discrete sine transform-Ⅲ(DST-Ⅲ ), which provide considerable computational savings.
提出了计算Ⅰ型和Ⅲ型滑动离散余弦变换和滑动离散正弦变换的快速 算法。
6) Discrete Cosine Transform (DST)
离散正弦变换(DST)
补充资料：正交变换
设m是对称矩阵， p是可逆矩阵， n=p^tmp 称为 m的正交变换。
正交变换不改变m的特征值。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条