搜索资源列表
lloyd_max
- dct- computes de discrete cosine transform for a matriz 8*8 from a picture.It receaves the point of the block where begin calculate, the tam of the block and the original picture... lLoyd-max- computes de lLoyd-max optimum quantizer for N bits.
FIRdigitalfilterdesign
- 平方根升余弦滚降FIR数字滤波器的设计 与实现 不错的资料-Roll-off square root raised cosine FIR digital filter design
CIC-cosinefilter
- CIC滤波器和COSine滤波器级联，改进了CIC的矛盾。英文文章-CIC filter and filter cascade CoSine improved CIC contradiction. English articles
DCTtheoryapplication
- discrete cosine transform serial port
compensationfilterdesign
- 带余弦预滤波和补偿滤波的抽取滤波器 设计方案-Pre-filtering with a cosine decimation filter and compensation filter design
dsp5000fft
- 正弦余弦阵列放在twiddle1、2 输入信号（方波）.copy mdata 直接打开pjt文件 生成out文件即可看0x9000（program页）的频谱-Sine cosine arrays on twiddle1, 2 input signal (square wave). Copy mdata file generation out directly to open the file pjt able to see 0x9000 (program pages) of the
sincos
- 正弦和余弦波在xilinx FPGA中的产生方法， 有look up table方法-Sine and cosine wave in xilinx FPGA in the production method, and a look up table method
digital_pic_transform
- 数字图像变换，主要介绍傅立叶变换和余弦变换及其性质-Digital image transform, introduces the Fourier transform and cosine transform and its properties
Vector+tf-idf
- Cosine similarity with TFIDF for information retrieval
Vectortfidstopwords
- Information retriever based on cosine similarity with TFIDF weights and stopwords
Watermarking-Against-Attack
- 小波和余弦变换的抗几何攻击数字水印算法,Wavelet and Cosine Transform Digital Watermarking Against Geometric Attack-Wavelet and Cosine Transform Digital Watermarking Against Geometric Attack
Text-Retrieval
- 信息检索系统从最初的纯手工检索系统业已发展到现在的以信息技术为支撑的检索系统，在这一过程中，适应新的信息资源、信息技术这些检索环境，提高信息检索系统的查全率、查准率和系统响应时间是不变的主题，在众多文本中掌握最有效的信息始终是信息处理的一大目标。围绕向量空间模型设计了一个文本检索系统，介绍向量空间模型的基础上给出了基于它的信息检索系统的一般结构框架和各部分的功能，探讨了系统中所涉及到的关键技术。用向量空间模型进行特征表达，用TF-IDF(Term-Frequency Inverse-Docume
frctfrst
- fractional cosine and sine transform
Discretecosine-transform
- 脑神经网络信号的离散余弦分类。所谓分类就是一种模式识别。按照某个特定标准(如距离准则)把一个数据集分割成不同的类或簇，分类后同一类的数据尽可能聚集到一起，不同数据尽量分离。而离散余弦变换是一种用来数据压缩的正交变换。所谓数据的压缩实际上就是通过丢失能量较小高频分量，保留能量较高的低频分量，从而达到压缩的目的。-Brain network signal discrete cosine classification. The so-called classification is a kind of
SVD-based-watermarking
- 基于SVD的DCT域和DWT域的经典水印算法，该算法通过提取水印水印的主成分并把该主成分嵌入到奇异值矩阵，鲁邦性非常高。-the principal components of the watermark are embedded into the host image in discrete cosine transform (DCT) and for the second method, those are embedded into the host image in discrete
Matlab-fourier
- MATLAB 的傅里叶变换的一些介绍 1. 离散傅立叶变换的 Matlab实现 2. 离散余弦变换的 Matlab 实现 3. 图像小波变换的 Matlab 实现函数-The MATLAB Fourier transform some introduction. Discrete Fourier Transform Matlab. Discrete Cosine Transform Matlab achieve wavelet transform Matlab implement f
DCT
- 提出了一种基于DCT提取人脸特征技术和支持向量机分类模型的人脸识别方法。利用离 散余弦变换可提取人脸可识别的大部分信息,而支持向量机作为分类器,在处理小样本、高维数等 方面具有独特的优势,且泛化能力很强,无需先验知识。从ORL 人脸库上的实验结果可以看出, DCT特征提取是很有效的,且SVM的分类性能优于最近邻分类器,同时提高了整个系统的运算速 度。-A face recognition method based on DCT for face feature extractio
TWO_DCT_IDCT
- 二维离散余弦反变换，整个频域到时域的转换，加深对数字信号处理的理解-Two-dimensional inverse discrete cosine transform, the entire frequency domain to time domain conversion, and deepen the understanding of the digital signal processingTwo-dimensional discrete cosine transform, the fr
law-of-cosines
- Lucene中的评分机制，也是算一个相似度的问题，不过它采用的是计算向量间的夹角（余弦公式），在google黑板报中的：数学之美（余弦定理和新闻分类） 也有说明，可以通过余弦定理来判断相似度；于是决定自己动手试试。-Scoring mechanism in Lucene, also calculate a similarity problem, but it USES is the Angle between the vectors (cosine formula), in the Google
Discrete-Cosine-Transform
- 离散余弦变换原理的文献介绍，简单明了，适合速成-Discrete Cosine Transform literature describes the principle, simple, suitable for crash