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FaceDetect
This is a matlab code for facial recognition
- 2009-09-25 08:17:11下载
- 积分:1
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tree
决策树算法的matlab实现,主要适用的是id3
算法思想(Decision Tree Algorithm to achieve the matlab main id3 algorithm is applicable to thinking)
- 2009-05-06 13:28:34下载
- 积分:1
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edgedetecting
基于小波分析的图像边缘检测方法(matlab程序)(the edge detecting method of the image
based on wavelet transform theory )
- 2009-05-26 18:28:11下载
- 积分:1
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LMS
说明: 自适应滤波和仿真实验,有毕设的同学可以参考下(Adaptive filtering and simulation experiments, there is complete set up for students to refer to the following)
- 2010-03-28 13:15:23下载
- 积分:1
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TPF
Transient Pipe Flow: Compute the transient velocity profile of a flow in a pipe.
- 2013-09-03 10:20:29下载
- 积分:1
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shenjing
采用神经网络技术模拟地震发生的频率与震级。(using neural network technology simulated earthquake frequency and magnitude.)
- 2007-01-19 22:13:23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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colorSegment_AmitSrinet
Color Segmentaion using euclidean and mahalaobis distance
- 2010-02-11 09:31:40下载
- 积分:1
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rgb2lab
rgb2lab:rgb颜色空间向lab颜色空间转换的matlab代码,对此变换要使用不求甚解的童鞋们可以直接调用~(rgb2lab:colorspace of rgb translate to colorspace of lab。Just for the beginner~)
- 2013-08-17 16:02:48下载
- 积分:1
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mfcc
MFCC filter to mack featuer extraction
- 2014-10-23 01:34:00下载
- 积分:1