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huigui
灰测预测,预测一组波动性不是很大的程序,否则检结果不是很精确(Ash test predictions about the volatility is not a great program, or review the results is not very accurate)
- 2011-11-25 12:13:40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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Kalman_fiter
包括,kalman一步预测代码,kalman滤波器,以及kalman平滑等几个源代码。希望大家有用。(Including, kalman step prediction code, kalman filter, kalman smoothing, as well as several source code. I hope everyone useful.)
- 2007-10-02 19:40:01下载
- 积分:1
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Digital-Image-Processing-MATLAB
说明: 数字图像处理方面的专业类书籍,中文版,适合系统的学习数字图像处理(Digital image processing professional books, Chinese for the study of digital image processing system)
- 2011-02-26 10:54:01下载
- 积分:1
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Gonzalezproblemanswer
说明: GONZALEZ数字图像处理第二版习题解答(英文版)(GONZALEZ Digital Image Processing Second Edition Problem Solutions (English))
- 2010-04-09 10:32:57下载
- 积分:1
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pso_WSN_HOMOGENEOUS
Particle swarm optimization in wireless sensor networks
- 2013-03-03 19:42:24下载
- 积分:1
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longbeige
本程序是基于matlab的龙贝格积分数值方法。(This program is Romberg integral numerical methods matlab based.)
- 2015-03-09 09:40:48下载
- 积分:1
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CCHP-for-summer-typical-day
冷热电三联供在冬季典型日时的发电量、天然气耗量、产热量、天然气流量、出口燃气温度等参数及分析计算,并包含加入补燃时情形的分析,经典实用。(CCHP, natural gas flow, export gas temperature and other parameters and analysis and calculation, and includes the case of adding fuel to the analysis of the situation, the classic practical.)
- 2021-03-09 23:59:27下载
- 积分:1
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MATLABprogrammingtutorial
《MATLAB程序设计教程》也是一本学习MATLAB编程的书籍(MATLAB programming tutorial)
- 2009-11-20 18:57:09下载
- 积分:1
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kalma_infinity
This program helps in kalman hi infinity filter learning
- 2010-05-10 18:06:43下载
- 积分:1