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AODV_2
基于地理位置的距离贪心路由协议GPSR的matlab仿真代码(Matlab simulation code based on geographical distance greedy routing protocol GPSR)
- 2012-09-04 10:49:11下载
- 积分:1
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Solving-the-2-D-Poisson-equation-by-the-Finite-Di
Solving the 2-D Poisson equation by the Finite Difference
- 2012-09-30 22:28:49下载
- 积分:1
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6314ijcsit03
说明: This file introduces a simple procedure to design and test DFIG Wind turbine generation system
- 2020-11-20 19:55:37下载
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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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weifenzuoyong
matlab中用于UI6008数据采集卡的数据采集以及输出的程序 使用方便快捷(for UI6008 data acquisition card for data acquisition and output in matlab program easy to use)
- 2012-07-30 12:20:41下载
- 积分:1
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PhoCrysFDTDTM
二维光子晶体弯折波导的计算程序,不过只有TM模,但TE模恨容易就能从中重写出来(Two-dimensional photonic crystal waveguide)
- 2009-09-16 10:27:05下载
- 积分:1
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15883875matlab-communication
this is matlab souce code with commication subject. it is good for others.
- 2009-03-22 05:20:56下载
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collision
two balls collision using matlab
- 2010-05-20 21:10:13下载
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matlab_tutorials
Matlab power spectral density qpsk power spectral density qpsk
- 2014-10-04 18:27:51下载
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Control-Course
automotive modeling suspension(automotive modeling)
- 2011-10-06 15:45:51下载
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