1) discrete cosine transform
离散余弦变换
1.
A method of discrete cosine transform for compressing tea NIR spectra;
茶叶近红外光谱数据的离散余弦变换压缩方法
2.
Digital watermark embedding algorithm based on decomposing discrete cosine transform coefficients;
基于离散余弦变换系数分解的数字水印嵌入算法
3.
The application of discrete cosine transform coding to seismic data compression;
离散余弦变换(DCT)编码在地震勘探数据压缩中的应用
2) DCT
离散余弦变换
1.
Watermarking Algorithm for Digital Image Based on DCT and SVD;
一种基于离散余弦变换和奇异值分解的数字水印算法
2.
Blind watermarking algorithm based on DCT;
基于离散余弦变换的盲水印算法研究
3.
Design of Integer DCT and Inverse DCT of AVC/H.264;
AVC/H．264整数离散余弦变换及反变换的结构设计
3) discrete cosine transform(DCT)
离散余弦变换
1.
A novel watermark embedding algorithm for three-dimensional(3D) mesh model based on Discrete Cosine Transform(DCT) and spread-spectrum communication technique is proposed.
基于离散余弦变换(DCT)技术和扩频通信技术提出三维模型稳健水印嵌入算法。
2.
By discrete cosine transform(DCT), still image compression coding technique, and human visual system (HVS), the 2-dimensional digital watermark (gray image) is embedded adaptively into the color host image.
以离散余弦变换 (DCT)、静态图像压缩编码、人眼视觉特性 (HVS)为基础 ,提出一种将灰度图像 (即二维数字水印 )嵌入到原始彩色图像中的新数字水印算法 该算法具有以下特点 :(1)应用静态图像压缩编码技术实现了以二维数字水印作为水印信号的数字水印算法 ;(2 )充分利用HVS实现了二维数字水印的自适应嵌入 ,增强了算法的透明性和鲁棒性 ;(3)能够依据原始彩色载体图像内容实现数字水印嵌入深度的智能调节 实验结果表明 :文中算法不仅具有较好的透明性 ,而且对如叠加噪声、JPEG压缩、平滑滤波、几何剪切、图像增强、马赛克效果等攻击均具有较好的鲁棒
3.
This paper proposes a CSD-based architecture namely CDA for computing inner product when one of the input vectors is fixed,and designs 2-D Discrete Cosine Transform(DCT) architecture with it.
提出一种基于CSD编码的向量内积分布式计算结构CDA,将其应用于二维离散余弦变换(DCT)硬件设计,利用DCT变换矩阵的编码特点减少设计中加法器的数量及移位累加树的带宽。
4) discrete cosine transform (DCT)
离散余弦变换
1.
First, it introduces the merits and demerits of discrete cosine transform (DCT) and embedded zerotree wavelet coding (EZW), and then aiming at the practical condition of VDR, a method combining DCT with EZW is presented, which can exert their advantages and overcome disadvantages, and a better compression effect can be got.
先分别介绍了离散余弦变换(DCT)和嵌入式零树小波编码(EZW)的优缺点,针对VDR图像压缩的具体情况,提出采用DCT和EZW相结合的方法,可发挥它们的优势,克服缺点,达到更好的压缩效果。
2.
Many people have analyzed the differences between the discrete cosine transform (DCT) and the wavelet transform (WT) for both image and video coding while comparing their coding performance.
在比较编码性能时 ,许多人分析了图像和视频编码的离散余弦变换 (DCT)和小波变换性能差别 ,普遍认为图像的小波编码在压缩比和编码质量方面优于传统的DCT变换编码。
3.
A new algorithm for the computation of discrete cosine transform (DCT) with odd prime length using cyclic or skew cyclic convolutions is proposed.
提出了一种利用循环卷积 (Cyclic convolution)和扭循环卷积 (Skew cyclic convolution)实现计算奇素长度离散余弦变换 (DCT)的快速新算法。
5) discrete cosine transformation
离散余弦变换
1.
The application of discrete cosine transformation in flame recognition
离散余弦变换在火焰识别中的应用
2.
A mathematical relation model between liquor near infrared spectrum and liquor alcoholicity was established by use of the combination of discrete cosine transformation (DCT) and BP neural networks, which was a new approach for rapid liquor alcoholicity determination.
采用近红外光谱的离散余弦变换和BP神经网络相结合,建立了白酒近红外光谱与其酒精度之间的数学关系模型,为快速检测白酒的酒精度提供了一种新的方法。
3.
By using the stability of the direct current (DC) coefficient in the blocks of discrete cosine transformation(DCT),the blind video watermarking method of modulating the DCT-blocked DC coefficients to hide the watermark was proposed.
利用离散余弦变换(DCT)直流系数稳定的特点,提出了一种通过调整视频图像的分块DCT直流系数来隐藏水印的方法。
6) discrete cosine transform(DCT)
离散余弦变换(DCT)
1.
A new feature extraction method called as 2DDM is proposed based on discrete cosine transform(DCT) and two-dimensional maximum margin criterion(2DMMC).
提出了一种基于离散余弦变换(DCT)和二维最大边缘准则(2DMMC)的2DDM特征提取算法,证明了2DMMC可以直接应用于DCT域,利用欧氏距离测度进行分类的结果与在空域中进行得到的结果完全相同。
补充资料：Fourier余弦变换
Fourier余弦变换
Fourier cosine transform
I议耐台余弦变换[I饭川份仪d理加田北而;Koc皿yc一uPe-o6pa”。a.e巾yp‘e] 见I议州匕变换(Fou〔屺rtla瑙form).
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