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mbook
MATLAB教程,很好的一本书,而且是WORD格式很好用(err)
- 2008-06-17 19:21:45下载
- 积分:1
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Matlab
matlab 智能计算 算法 详细 (matlab suan fa xiang xi)
- 2011-10-26 12:31:06下载
- 积分:1
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danbihuan_zhuansufankuai
直流电动机转速负反馈系统的仿真源文件。。。。。。(DC motor speed negative feedback system simulation source files.)
- 2013-05-01 18:48:40下载
- 积分:1
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imRAG
一个图论算法实现的matlab集大成的matlab 程序。很好。好方便(it is a graph algorithm based on matlab platform very useful for beginner.)
- 2010-10-01 16:29:06下载
- 积分:1
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demod
This program simulates the transmission performance of BPSK under Additive White Gausian Noise (AWGN) environment.
- 2009-06-26 11:23:26下载
- 积分:1
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Rayleigh
单径瑞利信道的simulink仿真 给定多普勒频移为120km/h,多普勒谱为经典谱。(the model of Rayleigh channel)
- 2014-11-17 13:13:11下载
- 积分:1
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nurbs
强大的nurbs的工具箱 nurbs曲线,曲面,造型(Toolbox nurbs powerful nurbs curve, surface, shape)
- 2021-03-12 09:49:25下载
- 积分:1
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For2008a
ACOUNT: 用于A 方向灯的时间显示,8 位,可驱动两个数码管;
BCOUNT: 用于B 方向灯的时间显示,8 位,可驱动两个数码管。*/
module traffic(CLK,EN,LAMPA,LAMPB,ACOUNT,BCOUNT)
output[7:0] ACOUNT,BCOUNT
(reg[7:0] numa,numb
reg tempa,tempb
reg[2:0] counta,countb
reg[7:0] ared,ayellow,agreen,aleft,bred,byellow,bgreen,bleft
reg[3:0] LAMPA,LAMPB
always @(EN)
if(!EN)
)
- 2010-06-23 14:39:58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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zuizhongban
基于重复控制的逆变器模型,系统完全可运行且功率因数较好,仅供大家参考(Repetitive control inverter model, the system is fully operational and the power factor is better)
- 2015-04-04 16:37:26下载
- 积分:1