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matlabANDmySQL
matlab里面调用SQL相信许多朋友都需要(matlab which calls SQL believe many friends need)
- 2007-09-01 12:36:42下载
- 积分:1
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cwt_contious1
牛人自己编写的基于morlet小波的连续小波变换,可以修改其中参数,但是输出与matlab自带的函数有出入,在修正中。(Prepared by the cattle themselves morlet wavelet continuous wavelet transform, where the parameters can be modified, but the output function that comes with matlab discrepancy in the amendment.)
- 2012-04-10 21:59:17下载
- 积分:1
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MAT_PD_MATPGM-1
MTI AND PD RADAR USE MATLAB 书中的源代码,不是最全的,但是最新的。 新买的原版书附件,第一次放在网上,其他应该地方下不到。(MTI AND PD RADAR USE MATLAB code of the book)
- 2013-08-02 07:47:34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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AudioFeatures
Extracting MFCC features for audio files and removing silence them. Then calculating some statistical functions
- 2015-01-17 02:29:23下载
- 积分:1
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kalman
数字信号处理中 卡尔曼滤波器的 模拟 matlab(kalman fliter matlab)
- 2011-12-13 20:34:13下载
- 积分:1
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getgroundtruth
在机器学习时需要图像groundtruth,本程序是一个matlab脚本,可以快速提取图像groundtruth,并保存为mat文件(you can get the object groundtruth in a picture, using my program. It s convenient for you when you do research on machine learning.)
- 2015-11-01 18:42:50下载
- 积分:1
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两种数据集对应程序代码
LLE算法基于swiss roll与s-curve数据集的运行结果,选取的样本点数为N=2000、k=12、 d=2进行的降维运算的结果,由运算结果可知在不同的数据集上LLE算法依然能够很好地保持数据在降维前后结构的特点。(The LLE algorithm is based on the running results of Swiss Roll and S-curve data sets, and the number of selected sample points is the result of dimensionality reduction of N=2000, k=12 and d=2. It is known that LLE algorithm still can maintain the characteristics of the data before and after dimensionality reduction well on different data sets.)
- 2021-02-05 23:19:56下载
- 积分:1
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Lag-Lead
用于控制系统的优化,自动对输入系统进行超前滞后调节,并会自动作出bode图。(Modeling assitance program, using lead and lag to modefy the system)
- 2012-02-12 15:26:02下载
- 积分:1
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EKF-UKF-PF
实现EKF、UKF、PF性能对比,输出四张图片,分析三种kalman 滤波的性能好坏。(the preformance of EKF,UKF.PF)
- 2021-03-16 15:39:22下载
- 积分:1