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ID3(MATLAB)
经典的用matlab编写的ID3算法,仅供大家分享(classic with Matlab prepared by the ID3 algorithm, is for everyone to share!)
- 2007-02-01 09:52:03下载
- 积分:1
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PageRankModel
PageRank模型在中文情感词极性判别中的应用(PageRank model in the Chinese emotional polarity discrimination in the application of the word)
- 2011-11-19 23:03:57下载
- 积分:1
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FLC
FUZZY CONTROL LOGIC for CAR HOVER PROE
- 2013-12-01 18:30:35下载
- 积分:1
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ying_v25
在matlab R2009b调试通过,数值分析的EULER法,包含收发两个客户端的链路级通信程序。( In matlab R2009b debugging through, EULER numerical analysis method, Contains two clients receive link-level communications program.)
- 2017-05-19 17:47:23下载
- 积分:1
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Fig5x37
电力电子、电机控制系统仿真模型 经典仿真源程序 洪乃刚版本(Power electronics, motor control system simulation model version of the classic simulation source Hong Naigang)
- 2011-05-09 23:23:11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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Sift2
About sift algorithm
- 2011-07-11 23:02:02下载
- 积分:1
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Support-Vector-Machines
Support Vector Machines
- 2013-04-06 05:08:00下载
- 积分:1
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lte_rate_matching
根据书面协议的代码是3GPP LTE速率匹配的代码。该代码包含速率匹配交织在一起,重要的内容有点熟。(The code is on LTE 3GPP rate matching code based on written agreement. The code contains a rate matching intertwined, important content bit cropping.)
- 2015-03-10 21:48:39下载
- 积分:1
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fuzzyPIDusingmatlab
模糊PID的MATLAB仿真...应用模糊逻辑理论在线修正P,I,D的三个参数(MATLAB simulation of the fuzzy PID fuzzy logic theory ... applications online amendment P, I, D of the three parameters)
- 2009-04-07 21:01:40下载
- 积分:1