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engCallMATLAB
engCallMATLAB:fortran调matlab的例子(engCallMATLAB: fortran tune matlab example)
- 2010-01-14 10:05:15下载
- 积分:1
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FIR_kai
说明: 利用凯泽窗产生FIR滤波器,可以直接使用,不用其它头文件。(err)
- 2008-11-15 20:55:00下载
- 积分:1
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code
sorce code for imageprooceesin with matlab code
- 2011-05-08 18:45:40下载
- 积分:1
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T_S
TS who to use AR in signal processing
- 2013-01-22 04:08:07下载
- 积分:1
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MIMO-OFDM
说明: 基于MIMO-OFDM的通信系统仿真,带注释。(Communication system simulation based on MIMO-OFDM, with notes.)
- 2021-04-08 14:39:00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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Radar1
模拟雷达的一个小程序,扫面线周期性扫描,显示检测出来的异常点(A small program to simulate the radar sweep noodles periodic scanning, display anomalies detected point)
- 2014-10-17 16:00:47下载
- 积分:1
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matlab
离散系统的Nyquist图,针对离散系统进行稳定性分析。(Nyquist plots of discrete systems, stability analysis for discrete systems.)
- 2015-04-06 14:31:56下载
- 积分:1
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MATLABppt
MATLAB相关的PPT 很齐全,讲解由浅入深,是初学者学习很好的资料。(MATLAB related PPT is complete, on the easy-to-digest, is very good information for beginners to learn.)
- 2009-06-16 20:46:45下载
- 积分:1
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[非密]Programming Phase-Field Modeling(非密)
说明: 相场模型的经典教程,包含MATLAB源代码说明,适合新手(the classic tutorial of Phase field modeling , including Matlab source code description, suitable for junior programmer)
- 2021-04-12 09:48:57下载
- 积分:1