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M@-code
program which includes the edge detection and is done inmatlab...helpful in finding edges in medical imges
- 2011-06-28 01:39:19下载
- 积分:1
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erciqumian2
用matlab实现二次曲面图绘制,用来绘制曲线图(Draw a graph quadric)
- 2013-08-17 21:53:03下载
- 积分:1
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fuzzy
Fuzzy logic algorithm
- 2014-10-23 20:40:06下载
- 积分:1
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MIT6_011S10_chap11
Dsp Course lec 11 DSP course
- 2011-11-07 23:35:52下载
- 积分:1
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GC_42VCP_CUSTOM
for engine code, very best cod
- 2012-01-20 17:15:08下载
- 积分:1
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PulseProcessXY
将PEER中下载的地震波多行多列转换成加速度时程数据(try to process the sesmic wave)
- 2020-12-04 17:09:25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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burg-power-spectrum-estimation
信号处理中的基于burg算法的功率谱估计的matlab仿真程序(matlab program of burg power spectrum estimation algorithm )
- 2014-09-28 14:37:20下载
- 积分:1
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Independent-Component-Analysis
介绍独立分量分析的很经典的一本书,芬兰人写的,全英文原版,高清!(Introduce independent component analysis classic book, Finns writing English original, high-definition!)
- 2012-09-28 10:57:19下载
- 积分:1
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matlabyiqunsuanfa
蚁群算法是一种用来在图中寻找优化路径的机率型算法。是一种求解组合最优化问题的新型通用启发式方法,该方法具有正反馈、分布式计算和富于建设性的贪婪启发式搜索的特点。通过建立适当的数学模型,基于故障过电流的配电网故障定位变为一种非线性全局寻优问题。(Ant colony algorithm is a method used to find optimal path in the graph the probability-based algorithm. Is a combination of optimization problems to solve new general heuristic method, which has a positive feedback, distributed computing and constructive and the greedy heuristic search features. Through the establishment of an appropriate mathematical model, over-current fault-based distribution network fault location into a nonlinear global optimization problem.)
- 2010-05-14 07:58:21下载
- 积分:1