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fast-ezwmatlab
这是利用matlab所写的ezw影像压缩法,但是我有改过一些步骤,比传统ezw更快。(This is written in the use of Matlab ezw image compression method, but I have to turn over some steps, ezw faster than traditional.)
- 2006-06-20 09:24:07下载
- 积分:1
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rrhhj
LabVIEW和MATLAB在水声信号处理中的应用
(LabVIEW and MATLAB in underwater acoustic signal processing applications)
- 2011-10-28 08:43:21下载
- 积分:1
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TVSBQ
成本低,制作简单的TV视波器,有图,说明。(Low cost, make a simple TV as the wave device, with diagrams, instructions.)
- 2010-02-04 12:29:27下载
- 积分:1
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opt-aiNet
免疫网络优化程序,用于多峰函数优化,精度高,收敛性好(Immune network optimization program for multimodal function optimization, high accuracy, good convergence)
- 2011-05-19 16:15:40下载
- 积分:1
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OLPP_MatlabCode
OLPP for matlab, Good code for you!(OLPP for Matlab, Good code for you!)
- 2007-06-12 22:53:24下载
- 积分:1
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Proficient_in_MATLAB
精通MATLAB 有画图章节,很直观的教程(Proficient in MATLAB)
- 2010-01-29 10:30:17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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superpixels64.tar
说明: Code to compute superpixels.
- 2019-07-01 08:12:12下载
- 积分:1
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MATLAB
matlab 实现数字信号处理,单位抽样序列的产生(matlab digital signal processing, random sequence of units produced)
- 2009-01-06 09:12:58下载
- 积分:1
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matlab-command
matlab 指令大全 matlab的所有指令 按字母排序(Daquan matlab matlab command in alphabetical order of all instructions)
- 2011-05-12 15:00:51下载
- 积分:1