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fundmodeling
本论文为数学建模问题的基金投资模型,在实际问题的分析基础上建立了单纯存款模型等()
- 2007-09-19 18:01:14下载
- 积分:1
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RCC
核查的关键在于对核材料属性准确、有效地识别[1][2]。利用252Cf作为随机脉冲中子源,对其入射核材料所产生的诱发裂变中子脉冲信号进行采集、处理和分析,得到自相关、互相关、自/互功率谱、功率谱密度比等一系列参数,从而反演核材料内部的反应性的情况,便可用于分析和识别核材料,其基本原理就是252Cf中子源驱动噪声分析测量法[(The result shows that the trained Elman neural network is able to identify the characteristics of correlation function, to distinguish different concentrations, and the average recognition rate reaches 90 , with high robustness.)
- 2013-09-04 11:12:10下载
- 积分:1
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bound2im
在MATLAB环境下对图像二值化处理后对图像进行edge的边缘提取,用于数值图像处理的相关领域中。(In the MATLAB environment on the image binarization edge of the image edge extraction, related fields for numerical image processing.)
- 2014-10-20 20:18:21下载
- 积分:1
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Tut3_-_FIR
DSP course Tut1-_Intro
- 2011-11-07 23:47:56下载
- 积分:1
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MATLAB-Codes
time series prediction use ANN
- 2013-12-17 19:06:53下载
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gui3
matalb guui......................(matalb gui.......................)
- 2013-11-03 20:49:41下载
- 积分:1
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mas-mli
moteur asynchrone simulation mli
- 2015-04-04 00:08:25下载
- 积分:1
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utitled-(2)
this is a blasius solution by matlab code
- 2012-12-31 23:08:50下载
- 积分:1
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FFT
1024点matlab仿真,10位输入,12位输出,结果保存在图像中(Matlab simulation of 1024 points, 10-bit input, 12 output, the result stored in the image)
- 2010-05-20 22:49:55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