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simulink
说明: simulink命令集,希望对做仿真的有些帮助!(simulink command set, and they hope to do some simulation to help!)
- 2008-09-09 14:52:30下载
- 积分:1
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animacion
This is a m.file that buid the map from sensor (like laser). Previous you will need info from some mdl.file s simulink.
Basically: First Run the mdl.file and after rund de m file.
- 2010-11-18 01:00:10下载
- 积分:1
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25811210stbc
实现LS信道估计的算法,很好的算法,对初学者有很大帮助(LS_MMSE_channel_estimators_for_OFDM)
- 2010-05-23 14:22:49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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twoD_CA_CFAR
韦布尔分布,对数正态分布和高斯分布条件下的时频二维恒虚警处理(under the condition of Weibull, Log-normal and Gauss, Time-Frequency CFAR)
- 2021-01-31 22:20:07下载
- 积分:1
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NonlinearFittingLIVE
VSI图像质量评价之live数据库的MATLAB代码及结果分数矩阵(MATLAB code and result matrix of live database for VSI image quality assessment.)
- 2018-05-29 10:36:47下载
- 积分:1
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ParticleFilter
A simple Particle Filter implementation
- 2012-05-18 02:47:54下载
- 积分:1
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ekf
关于扩展卡尔曼的matlab程序 m文件(a file of EKF about pmsm )
- 2015-01-09 19:42:19下载
- 积分:1
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matlab_signal
分析该方波的傅里叶级数展开表达式,确定采样频率,生成需要处理的方波信号(matlab dealing with signal)
- 2014-10-19 22:08:52下载
- 积分:1
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ga
遗传算法及其matlab实现,具体的实例代码(Matlab genetic algorithm and its implementation, the specific code examples)
- 2013-10-30 20:30:49下载
- 积分:1