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chap7
《智能控制》第二版(刘金琨著)程序源码第七章(" Intelligent control" , Second Edition (Liu Jinkun a) of Chapter VII of program source code)
- 2011-04-26 09:44:15下载
- 积分:1
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GeLei_Split
输出一个正整数的所有格雷码序列及一正整数的所有升序拆分序列(output a positive integer Gray all sequences and a positive integer of all ascending sequence Resolution)
- 2006-09-23 22:17:27下载
- 积分:1
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DRSHE
Dynamic Range Separate HE
- 2013-08-21 09:52:22下载
- 积分:1
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GUI04
用matlab实现图像处理,设计图像处理软件等(Implementation using matlab image processing, image processing software designed)
- 2009-04-05 04:44:02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
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F_JIDtjl
模糊聚类分析动态聚类分析程序,很简单,实用。附带有聚类图程序(Dynamic fuzzy clustering analysis Cluster analysis procedure is very simple and practical. Figure comes with a clustering procedure)
- 2014-09-29 12:59:58下载
- 积分:1
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RLS
用matlab实现RLS滤波,最小二乘估计算法是以最小误差平方和为优化目标的。(RLS filter using matlab, least squares estimation algorithm is the smallest sum of squared errors for the optimization objectives.)
- 2013-11-25 19:52:41下载
- 积分:1
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hardthrdenoise
小波去噪,包括各种小波变换,去噪效果好,保证可用。
(Wavelet denoising, including wavelet transforms, denoising effect, guarantee available.)
- 2010-12-19 21:21:12下载
- 积分:1
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kalmanlvbo
说明: 基于卡尔曼滤波器的PID控制器参数优化程序,matlab编程,matlab环境运行
(Kalman filter based on the PID parameter optimization procedures, Matlab programming, Matlab environment running)
- 2006-05-10 16:59:00下载
- 积分:1
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Viterbi_decode
viterbi decodes function
- 2013-01-09 23:12:51下载
- 积分:1