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chaymodel
本程序是求解神经电另一chay方程的较为简单的例子。还有一个非线性物理中的Lorenz模型。可以帮助大家了解神经放电的问题()
- 2007-07-29 21:16:21下载
- 积分：1
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new-matlab
最新国外有关matlab的资料，是国内没有的，希望对大家的学习matlab有帮助。(Matlab latest information about the foreign, is not, we want to learn matlab help.)
- 2011-09-18 21:48:49下载
- 积分：1
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trainList
PCA人脸识别
This package implements basic Principal Component Analysis in Matlab and
tests is with grayscale portion of the FERET database. Images are not
preprocessed and it is up to the user to preprocess the images as wanted,
not changing the filenames(PCA Face Recognition This package implements basic Principal Component Analysis in Matlab andtests is with grayscale portion of the FERET database. Images are notpreprocessed and it is up to the user to preprocess the images as wanted, not changing the filenames)
- 2008-05-16 22:34:23下载
- 积分：1
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compare
compare with 2 image
- 2010-12-26 01:08:54下载
- 积分：1
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ScriptforcomputingtheBERforBPSKmodulationin1
Script for computing the BER for BPSK modulation in a
AWGN channel with receive diversity
- 2010-07-11 20:15:13下载
- 积分：1
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MATLABzlp
关于遗传算法的源码，用MATLAB实现的，对初学者非常有用。(The source of genetic algorithm, using MATLAB to achieve, is very useful for beginners.)
- 2010-11-24 10:18:50下载
- 积分：1
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robust_filter
利用matlab，编写程序，设计了卡尔曼滤波算法，对惯性器件的初始校准进行仿真(Matlab, programming, design of the Kalman filter algorithm, the initial calibration of the inertial sensors simulation)
- 2013-04-28 17:34:33下载
- 积分：1
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DBSCAN
Matlab -------------------------------------------------------------------------
Function: [class,type]=dbscan(x,k,Eps)
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Aim:
Clustering the data with Density-Based Scan Algorithm with Noise (DBSCAN)
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- 2010-06-08 21:23:00下载
- 积分：1
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shangchuan
程序代码说明
P0401：用Prewitt算子检测图像的边缘
P0402：用不同σ值的LoG算子检测图像的边缘
P0403：用Canny算子检测图像的边缘
P0404：图像的阈值分割
P0405：用水线阈值法分割图像
P0406：对矩阵进行四叉树分解
P0407：将图像分为文字和非文字的两个类别
P0408：形态学梯度检测二值图像的边缘
P0409：形态学实例——从PCB图像中删除所有电流线，仅保留芯片对象(Procedure Code Description P0401: detection using Prewitt operator Edge P0402: σ values with different operator LoG edge detection image P0403: detection using Canny operator Edge P0404: Image Thresholding P0405: thresholds for water line image segmentation method P0406: for the matrix decomposition quadtree P0407: text and images are divided into two categories of non-text P0408: detection of morphological gradient of the edge binary image P0409: morphological examples- from the PCB to remove all images current lines, retaining only the target chip)
- 2009-04-23 11:15:35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
