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CHAP2_4
纯滞后系统的smith控制算法(matlab仿真程序)(Pure time-delay system smith control algorithm (matlab simulation program))
- 2007-08-15 19:39:05下载
- 积分:1
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01
说明: matlab中一些重要的课件和资料,比较有用啊!(matlab courseware and some important information, more useful ah!)
- 2010-09-14 10:00:29下载
- 积分:1
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id3_naive_bayes_matlab
Matlab implementation of ID3 and NaiveBayes classifier. It also includes example dataset as well.
- 2009-04-17 19:52:44下载
- 积分:1
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bpNN
liangge xin hao 特征提取后用bp神经网络进行识别(BP feture extract)
- 2016-04-24 10:26:51下载
- 积分:1
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ClutterProduce
基于matlab的雷达杂波的模拟,包含有瑞利、对数正态、韦伯杂波等等(Simulation of the Radar clutter based on matlab)
- 2020-11-10 10:19:46下载
- 积分:1
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total_variation_denoise_method
总变分滤波,可运行,用MATLAB编写,适用于一维数据。(total variation filtering method to one dimensional signal)
- 2010-11-16 10:41:00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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matlabpowercalculate
电力系统潮流计算程序,可以计算至300个以上的节点的系统。(Power flow calculation program, can be calculated to more than 300 nodes.)
- 2013-04-12 20:52:16下载
- 积分:1
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Gaze-Estimation
一篇IEEE上的比较好的视觉估计的文章。(Appearance-Based Gaze Estimation Using Visual Saliency )
- 2013-03-02 20:18:23下载
- 积分:1
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wavepacket
小波,小波包去噪和分析相关的一些编程,供初学者学习之用(Wavelet, wavelet packet de-noising and analyze some programming related, for beginners learning to use)
- 2015-01-06 17:35:15下载
- 积分:1