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Buck_PWM
buck pwm dc-dc chopper for many usage.
- 2014-02-07 21:48:15下载
- 积分:1
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chongfukongzhi2
单相逆变电路 matlab仿真 重复控制(matlab )
- 2021-04-24 10:48:48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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SpaceState
space-state rutine (mechanical vibration) in matlab environment
- 2009-06-09 21:25:44下载
- 积分:1
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New-Microsoft-Word-Document
This will perform contrast streching on input image
- 2013-12-02 11:44:10下载
- 积分:1
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l1ioftb2
该算法非常适用于正系统、正切换系统等仿真(NUMERICAL SIMULATION FOR POSITIVE SYSTEMS and positive switched system)
- 2018-12-24 16:10:25下载
- 积分:1
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Wavelet_OMP
正交匹配算法,实现了 给定信号的稀疏表示。算法很好!(Orthogonal matching algorithms, realize a given signal sparse said. Algorithm is very good!
)
- 2012-03-21 21:14:57下载
- 积分:1
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ma-si-pr-re
The statements below guide us to write the code for the transmission of sensed data to a sink node using cognitive radios in multiple spectrum bands. In doing this we are trying to find the most appropriate modulation scheme using MATLAB simulation.
- 2013-11-21 04:00:40下载
- 积分:1
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ANFIS_BP-master
说明: 自适应模糊神经网络的一个模型matlab语言实现(ANFIS_BP-master Substractive clustering algorithm)
- 2019-04-02 15:54:52下载
- 积分:1
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exp5
水平场地和倾斜场地挖填土方量计算MATLAB示例代码(Horizontal cut and fill venues and venues tilt earthwork calculations MATLAB sample code)
- 2013-12-21 16:15:49下载
- 积分:1