-
zigzag
用matlab实现了zigzag算法,实现功能:对任意维数的图片都都能进行加密和解密(Using matlab to achieve a zigzag algorithm functions: For any dimension pictures are able to encrypt and decrypt)
- 2020-11-28 00:09:29下载
- 积分:1
-
o9
说明: its an matlab pdf document on aco
- 2009-12-10 19:22:00下载
- 积分:1
-
WignerVille
这个程序是计算WignerVille用到的,希望对你有用(This program is used in computing WignerVille you)
- 2012-04-20 15:55:01下载
- 积分:1
-
OFDM-modulation
Program for computing SNR loss in OFDM modulation
- 2013-02-08 13:08:56下载
- 积分:1
-
mas_mli
simulation sous simulink, de la machine asynchrone triphasée avec commande MLI, onduleur triphase et vecteurs complexes de la MAS
- 2010-12-10 00:44:50下载
- 积分:1
-
rcon-entry-v1
A GUI program for project management.
- 2015-04-11 00:06:07下载
- 积分:1
-
UVForMatlab
画流速和温盐的Matlab程序,用于FVCOM结果的处理(Draw flow rate and temperature and salinity of the Matlab program for FVCOM result processing)
- 2012-03-29 15:43:28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
-
linkedlist
The m-file contends the matlab code for the class of linkedlist, a classic kind of data structure. OOP is an important and brandnew characteristic of the matlab language, which is embodied in the m-file.
- 2014-08-30 15:56:12下载
- 积分:1
-
chap3
《滑膜变结构控制matlab仿真》第三章( synovial VSC matlab simulation Chapter 3)
- 2015-04-08 09:59:42下载
- 积分:1