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image-matching-
- 针对 １２８ 维 ＳＩＦＴ 特 征向量，采用距离匹配和余弦相似度匹配相结合的测度方法，利用特征点方向一致性进一步降低误匹配率 ． 实验结 果表明：改进算法对图像的缩放、旋转、光照、噪声和小尺度的视角变换均有较好的匹配效果 ． 与原算法相比，在保 证匹配点数和匹配时间的基础上，改进算法对旋转、缩放、噪声模糊和光照变换的误匹配率平均降低 １０％～２０％ ， 对于小尺度的视角变换，误匹配率平均降低 ５％． -For 128-dimensi
abb
- 对图像进行离散余弦变化处理，了解余弦变化系数以及余弦变化后回复图像与原图的区别-After the change of image processing discrete cosine understand cosine cosine coefficient of variation and difference with the original image Reply
dct_and_idct
- 离散余弦变换和离散余弦反变换的介绍，以及两者之间的区别-Introduce the discrete cosine transform and inverse discrete cosine transform, and the difference between the two
8x8_idct_implementation
- 8*8离散余弦反变换的简单介绍文献,形象生动，简单明了-8* 8 discrete cosine transform brief literature, vivid, simple
SINANDCOS-CORDIC
- 该资料是利用cordic算法实现正余弦函数计算输出的源程序及说明。资料中包含迭代算法和流水线算法。-This information is to use cordic algorithm source code and instructions cosine function calculates the output. Iterative algorithms and data contained in the pipeline algorithm.
CIC-filter
- 采用多级级联方法降低了对硬件运算速度的要求，有利于实时处理；采用余弦滤波器改善了阻带衰减不足；内插二阶多项式滤波器补偿了 CIC 滤波器通带内的衰减；抗混叠低通滤波器减小了混叠影响-Using multi-stage cascade approach reduces hardware requirements for computing speed, real-time processing in favor cosine filter improves the stop-band atten
base-band
- 基带传输：欲传送的0、1比特流 + 码型变换 +基带成型网络（采用升余弦滚降系统或者部分响应系统）+信道+码型反变换+0、1比特流。-Baseband transmission: 0,1 bitstream+ pattern to be transmitted baseband conversion+ forming network (using the cosine roll-off system or partial response system)+ channel+ pattern in
matlab-DCT-watermark
- 基于离散余弦变换的数字水印嵌入以及实现代码-Embedded watermarking based on discrete cosine transform and implementation code
dct2-fusion
- two dimensional discrete cosine transform image fusion using PCA source cod with various performance metrices-two dimensional discrete cosine transform image fusion using PCA source cod with various performance metrices
lisanyuxuanbianhuan
- 离散余弦变换算法及代码-Discrete Cosine Transform algorithm and code. . .
rootcos
- 用matlab实现升余弦滤波器的设计，其中滚降系数可以根据自己需要自动调节-Using matlab to achieve raised cosine filter design, roll-off factor which can automatically adjust according to their needs
The-beauty-of-mathematics
- 几年前，“数学之美”系列文章原刊载于谷歌黑板报，获得上百万次点击，并被热情的读者广为传播，得到高度评价。读者说，读了“数学之美”，才发现大学时学的数学知识，比如马尔科夫链、矩阵计算，甚至余弦函数原来都如此亲切，并且栩栩如生，才发现自然语言和信息处理这么有趣，才真正明白“数学是科学的皇后”这句名言。 今年，作者吴军博士几乎把所有的文章都重写了一遍，为的是能把高深的原理讲得更加通俗易懂，让非专业读者也能领略数学的魅力。经过改写和重构后，《数学之美》在整体和细节的度上控制得更好。希望读者通过具体的
soqpsk
- SOQPSK调制，根升余弦滤波器源代码，用于初学者的使用和学习-SOQPSK modulation,root-raise cosine filter to use and study for a new user
Draw2
- 一个绘制正弦余弦曲线的基于mfc的代码，有助于读者理解mfc的绘图函数-Draw a sine cosine curve based on mfc code
Transform-Based-Image-Steganography
- Image Compression Using the Discrete cosine transform.
ImagingClass
- This is a class presentation about the discrete cosine transform
proiect
- In this paper we present the usefulness of the algorithm DCT (Discrete cosine Transform) blocks applied level image compression JPEG (Joint Photographic Experts Goup). It has been shown that this algorithm is the most efficient in the case of compres
backup
- A discrete cosine transform (DCT) expresses a finite sequence of data points in terms of a sum of cosine functions oscillating at different frequencies. DCTs are important to numerous applications in science and engineering, lossy compression of audi
Mohammad-mahmoudi
- Discrete Cosine Transform matlab code , image processing
ACCV10
- 很珍贵的论文，通常是需要付费下载的：Cosine Similarity Metric Learning for Face Verification.-Very precious papers, usually need to pay to download: Cosine Similarity Metric Learning for Face Verification.