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CD_Programs
《合成孔径雷达成像算法与实现》一书附带光盘中数据读取程序。(" Synthetic aperture radar imaging algorithm and implementation," a book with CD-ROM data reading program.)
- 2020-11-16 14:59:40下载
- 积分:1
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OFDM_send_matlab
ofdm的发射机用matlab仿真实现,浅显易懂,适合初学者使用(transmitters ofdm simulation using matlab, easy to understand and use for beginners)
- 2009-06-06 10:37:02下载
- 积分:1
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1003
说明: 最短路径分析源码,使用Ao开发,可以准确的分析(Source shortest path analysis, using Ao development of an accurate analysis of)
- 2010-03-19 13:59:00下载
- 积分:1
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FIR_Low
基于Matlab开发环境的FIR数字低通滤波器设计的源代码。(Based on the development environment of Matlab FIR digital low-pass filter design source code.)
- 2014-09-29 21:04:59下载
- 积分:1
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xwy
电力系统课程设计,PQ潮流算法源程序,IEEE节点适用。(Power systems curriculum design, PQ flow algorithm source code.)
- 2014-09-20 15:42:28下载
- 积分:1
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Kalman
该文档给出了KALMAN滤波的MATLAB语言实现程序,希望对初学者有所帮助(The document gives the KALMAN filter MATLAB language program, want to help beginners)
- 2010-05-10 16:42:59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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Volterra
使用“改进的欧拉公式”和“4阶龙格-库塔公式”分别对Volterra方程求解,绘制解曲线、相轨线,并将结果进行比较。(Using the " improved Euler formula" and " 4-order Runge- Kutta formulas," respectively, Volterra equations, draw solution curves, phase trajectories, and the results were compared.)
- 2011-05-12 17:33:57下载
- 积分:1
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Counter-matlab
这个程序用来模拟windows计算器,为薜定宇老师<<科学运算语言MATLAB5.3程序设计与应用>>的习题而做(It is suitable for beginners to master matlab deep into the second developed a good teaching examples of great reference value)
- 2013-07-25 10:48:07下载
- 积分:1
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PATHLOSSMODEL
pathloss model in telecomunication example: free space, indoor pathloss, outdoor pathloss
- 2013-10-07 19:28:44下载
- 积分:1