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morphology-reconstruction
形态学重构-主要是为了复杂背景条件下的图像分割，采用matlab语言编写，具有很高的参考价值。(Morphological Reconstruction- mainly to under complex background image segmentation, using matlab language, with a high reference value.)
- 2009-12-15 23:12:15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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biaoding
关于摄像机标定的，用MATLAB实现，有点乱(On camera calibration, in MATLAB, a bit chaotic)
- 2011-07-12 10:13:41下载
- 积分：1
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MulFreq_beamforming
自己编写的基于多载频的高频雷达的波束形成matlab程序，包含三个文件：主程序、阵列导向矢量生成函数、添加高斯噪声信号函数。程序可顺利运行。(Multiple frequency carrier beamforming)
- 2014-01-09 10:25:13下载
- 积分：1
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method-of-MATLAB-code-to-exe-file
该文档一步步的描述如何将matlab源程序打包成可执行exe文件。(This document describes step by step how to make matlab source packaged into an executable exe file.)
- 2013-11-22 14:34:22下载
- 积分：1
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ASK_FSK_PSK
this file content simple example about modulation bit stream.the type of modulation is (FSK,PSK and ask) after modulation data send and received after that show the relationship between signal to noise ratio (snr) and the bit error rate (ber).....
- 2013-12-19 00:11:19下载
- 积分：1
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emd+奇异值差分谱
调用程序可对信号进行EMD分解，再进行奇异值分解降噪(The calling program can decompose the signal by EMD, then the singular value decomposition and denoising 2D empirical wavelet program. The calling subroutine can perform the empirical wavelet transform on the image.)
- 2018-11-28 16:33:05下载
- 积分：1
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chuas
说明： 本代码是由matlab实现蔡氏电路的混沌仿真，采用的是四阶龙格-库塔方法，比较简便。(This code is a matlab implementation of the chaotic Chua' s circuit simulation, using a fourth order Runge- Kutta method, more simple.)
- 2011-03-09 14:32:14下载
- 积分：1
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MVO
根据黑洞理论，提出的黑洞模拟算法，并进行标准测试函数优化，优化结果由于现有算法(According to the black hole theory, the black hole simulation algorithm is proposed, and the standard test function optimization is carried out.)
- 2016-12-10 19:42:44下载
- 积分：1
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wuyueshuyouhua
用matlab编写的无约束优化的源码，经过调试，都能运行，对数学建模竞赛帮助很大。(Prepared using matlab optimization of the source, through commissioning, to run on the Mathematical Contest in Modeling of great help.)
- 2010-08-07 10:54:43下载
- 积分：1
