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pso
说明: %--- 基本粒子群优化算法(Particle Swarm Optimization)--- -----
%--- 名称:基本粒子群优化算法(PSO)
%------作用:求解优化问题
%------说明:全局性,并行性,高效的群体智能算法
(--- Elementary particle swarm optimization algorithm (Particle Swarm Optimization)----------- Name: Elementary Particle Swarm Optimization (PSO )------ role: Solving optimization problems------- Description: overall, parallelism and efficient swarm intelligence algorithm)
- 2008-11-13 21:11:20下载
- 积分:1
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xiaobo
说明: 小波变换在图像处理中的应用,图像处理,算法重构,图像压缩等(Wavelet Transform in Image Processing)
- 2010-05-04 11:53:16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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the-iamge-matting-with-new-ways
采用一种新的方法,对图像进行matting,并取得良好的效果(the image matting with good approach)
- 2013-10-02 21:23:32下载
- 积分:1
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seg
该程序采用MATLAB程序编写,为.m格式的文件,可以直接在MATLAB中运行,内容关于数字图形分析与处理(image analysis)
- 2010-06-04 14:52:11下载
- 积分:1
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ECGreading
说明: MIT-DB标准数据库中心电信号的读取程序可用于心电信号压缩与编码(MIT-DB standard ECG database, the reading program can be used for ECG signal compression and coding)
- 2010-04-29 18:51:45下载
- 积分:1
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matlab-solves-the-NLSE
该源代码是Govind P.Agrawal所编写的非线性光纤光学中的非线性薛定谔方程的matlab的数值解法(The source code is the numerical solution of the nonlinear Schrodinger equation written in Nonlinear Fiber Optics by Govind P.Agrawal Matlab)
- 2012-06-03 16:17:56下载
- 积分:1
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upload
Basic fundamental approaches for images
- 2009-09-12 16:37:37下载
- 积分:1
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code_sr
it is good for start in speaker recognition.
- 2010-11-30 20:00:52下载
- 积分:1
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split-PML
分裂场PML吸收层,模拟时谐场,在二维空间的传播。(split PML to simulate the sinsoudal wave )
- 2009-05-27 14:00:00下载
- 积分:1