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LFMradar
线性调频(LFM)脉冲压缩雷达仿真,有具体的方法和实现步骤,包括仿真结果。(Linear frequency modulation (LFM) pulse compression radar simulation, there are specific methods and implementation steps, including the simulation results.)
- 2010-12-17 16:29:23下载
- 积分:1
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distance
vision file for maylab
- 2010-03-13 16:38:42下载
- 积分:1
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spread
这是关于扩频的一些基本知识,希望能对大家有帮助.(this is about spreading some basic knowledge, we want to help.)
- 2006-07-27 21:33:44下载
- 积分:1
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curvelinear--colour
matlab编程,实现曲线色彩的修改
(Matlab programming, achieve a modification of the curve color)
- 2012-05-18 15:25:31下载
- 积分:1
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MATLAB-Codes(-Knapsack-Problem)
about using matlab for solving Knapsack Problem
- 2015-04-05 19:46:02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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queue_bank
bank single server queue
- 2012-05-29 02:53:14下载
- 积分:1
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Mfilter
直方图均衡源代码,从直方图统计到256级灰度转变并显示(Source histogram equalization)
- 2009-03-29 16:57:31下载
- 积分:1
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CS
说明: Matlab编写的压缩感知的库函数,包括稀疏分解和重构。(Written in compressed sensing Matlab library functions, including the sparse decomposition and reconstruction.)
- 2010-12-07 21:41:03下载
- 积分:1
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MatlabFiles
1-Mapped element computations
2-Analysis of Elastic Solids
3-Solids of Revolution
4-Multi-Field Formulations for Beam Elements
5-Multifield Formulations for Analysis of Elastic Solids
- 2012-01-07 01:29:00下载
- 积分:1