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gaotonglvboqi
基于Matlab的高通滤波器的设计源码,可以通过此代码,模拟高通滤波器的设计。并附有仿真后的图像。(Matlab-based high-pass filter design source code, this code can simulate the high-pass filter design. Together with simulation, the image.)
- 2010-06-30 09:55:59下载
- 积分:1
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de_noising
Matlab-Wavelet-Denoise-Compress. The practice of small noise, a very good application
- 2010-10-19 05:36:29下载
- 积分:1
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luolunzi
说明: 洛伦兹方程的代码模拟程序和图像和一些文字说明。(Lorenz equations and image simulation program code and some text.)
- 2011-03-29 18:41:48下载
- 积分:1
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3
说明: eeg data,i have processed the datas,you can easily use load to load and use the data
- 2010-05-24 16:05:33下载
- 积分:1
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wavden
即将于matlab的小波变换的示例工具箱,里面含有较多的示例程序(Toolbox upcoming matlab wavelet transform example, which contains more sample programs)
- 2020-06-26 20:00:02下载
- 积分:1
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ftx&fty
SAR 信号处理中常用的带频移的傅里叶变换函数,可以直接对信号进行处理(SAR fft transform with fftshift)
- 2021-05-13 12:30:01下载
- 积分:1
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Artificial-noise
基于人工噪声的协同通信系统安全性研究,计算系统的误码率(Cooperative communication system based on artificial noise safety studies, computing system ber)
- 2021-03-12 15:09:25下载
- 积分:1
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automatic-control-matlab-2
复旦大学自动控制理论matlab基础第1讲,关于matlab的知识(Automatic control theory based Fudan University, Lecture 1 matlab, matlab knowledge about)
- 2011-05-23 22:27:41下载
- 积分:1
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sift
1 SIFT 发展历程
SIFT算法由D.G.Lowe 1999年提出,2004年完善总结。后来Y.Ke将其描述子部分用PCA代替直方图的方式,对其进行改进。
2 SIFT 主要思想
SIFT算法是一种提取局部特征的算法,在尺度空间寻找极值点,提取位置,尺度,旋转不变量。
3 SIFT算法的主要特点:
a) SIFT特征是图像的局部特征,其对旋转、尺度缩放、亮度变化保持不变性,对视角变化、仿射变换、噪声也保持一定程度的稳定性。
b) 独特性(Distinctiveness)好,信息量丰富,适用于在海量特征数据库中进行快速、准确的匹配[23]。
c) 多量性,即使少数的几个物体也可以产生大量SIFT特征向量。
d) 高速性,经优化的SIFT匹配算法甚至可以达到实时的要求。
e) 可扩展性,可以很方便的与其他形式的特征向量进行联合。
4 SIFT算法步骤:
1) 检测尺度空间极值点
2) 精确定位极值点
3) 为每个关键点指定方向参数
4) 关键点描述子的生成
本包内容为sift算法matlab源码(1 SIFT course of development
SIFT algorithm by DGLowe in 1999, the perfect summary of 2004. Later Y.Ke its description of the sub-part of the histogram with PCA instead of its improvement.
2 the SIFT main idea
The SIFT algorithm is an algorithm to extract local features in scale space to find the extreme point of the extraction location, scale, rotation invariant.
3 the main features of the SIFT algorithm:
a) SIFT feature is the local characteristics of the image, zoom, rotate, scale, brightness change to maintain invariance, the perspective changes, affine transformation, the noise also maintain a certain degree of stability.
b) unique (Distinctiveness), informative, and mass characteristics database for fast, accurate matching [23].
c) large amounts, even if a handful of objects can also produce a large number of SIFT feature vectors.
d) high-speed and optimized SIFT matching algorithm can even achieve real-time requirements.
e) The scalability can be very convenient fe)
- 2012-05-25 15:31:16下载
- 积分:1
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te_horn
一个 天线的MATLAB 代码,是在国外的网站下的(Antenna)
- 2009-10-16 09:34:40下载
- 积分:1