-
facerecognizeonPCA
像的许多个空间中的一个。不管子空间的具体形式如何,这种方法用于图像识别的基本思想
都是一样的,首先选择一个合适的子空间,图像将被投影到这个子空间上,然后利用对图像
的这种投影间的某种度量来确定图像间的相似度,最常见的就是各种距离度量。(Like much of a space. Regardless of the specific sub-space form, this method has been applied to image recognition are the same basic idea, first of all, select an appropriate sub-space, image will be projected onto this subspace, and then use the image projection of this inter- some measure to determine similarity between images, the most common is that all kinds of distance measure.)
- 2009-03-06 09:22:20下载
- 积分:1
-
exInfomax-BSS
扩展INFOMAX算法是盲源分离算法中极大似然估计的一种扩展,功能更强大。(The extended INFOMAX algorithm is an extension of the maximum likelihood estimation in the blind source separation algorithm, and the function is more powerful.)
- 2021-04-25 17:08:46下载
- 积分:1
-
Matlab_simulink
主要是Matlab和Simulink相关的资料,包括Simulink使用手册,通信模块之类的。(Matlab and Simulink are mainly related information, including Simulink user manual, such as communication module.)
- 2009-05-12 00:49:57下载
- 积分:1
-
MATLAB
every possible information u need about matlab and how to use it is present here.I hope u enjoy it as much as i did
- 2010-12-10 17:45:42下载
- 积分:1
-
speex-1.1.6.tar
speex-1.1.6.tar.gz,音频格式speedx编解码源码(speex- 1.1.6.tar.gz, Audio Codec format speedx FOSS)
- 2007-03-28 11:08:54下载
- 积分:1
-
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
-
MUSIC算法MATLAB程序
基于music空间谱估计算法,使用matlab m语言实现(Based on music spatial spectrum estimation algorithm, using Matlab m language implementation)
- 2017-09-16 16:04:46下载
- 积分:1
-
shooting-method
用来求解非线性系统周期解的打靶法,程序简单易学。(The shooting method is used to solve the nonlinear system, periodic solution, the program easy to learn.)
- 2021-03-09 20:59:27下载
- 积分:1
-
xianzhen
均匀线阵方向图仿真程序 包括静态方向图 阵列方向图 带切比雪夫权的阵列方向图的仿真(With a cut over the right plane array direction Schiff Figure simulation)
- 2021-04-28 19:48:44下载
- 积分:1
-
1DTEM
一维瞬变电磁数据处理程序,烟圈反演方法,效果不错(a program of tem)
- 2020-09-27 20:17:46下载
- 积分:1