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QRcode

于 2010-12-19 发布文件大小:1289KB

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QR码作为一种可高速、全方位识别的二维条码,已经在各行各业中得到了应用,并具有很大发展潜力.本文针对QR码图像的识别过程中可能遇到的图像噪声干扰、QR码占实际拍摄图像的一部分、倾斜、几何失真等问题进行了研究,提出了通过改进型中值滤波去除噪声,使用QR码符号特性定位并对倾斜图像进行旋转,对失真不严重的图像采用控制点变换和双线性插值方法进行几何校正.实验证明, 本文的方法简单有效, 可以用于提高条码的正确识别率.(As a high-speed, full identification of the two-dimensional bar code, QR code has been applied in all walks of life, and also has great potential for development. In this paper, aiming at QR code image recognition process may be encountered in noise interference, QR code accounting for the actual captured image just a part, slant, geometric distortion, and other issues have been studied, put forward through improved median filter to remove noise, use QR code symbol characteristics to locate and rotate the tilted image, distortion which is not serious use control-point transform and spatial bilinear interpolation method for geometric correction. The results show that this method is simple and effective, can be used to improve the QR code correct recognition rate.)

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1234
关于信号处理的SUPTITLE等6个函数，matlab里面一般都没有，专业人士用(SUPTITLE function on signal processing, matlab which in general are not, professionals with)

2010-10-21 19:07:45下载

积分：1
DFT2
DTF - equation implementation2(DTF- equation implementation2)

2009-12-04 16:21:14下载

积分：1
daitonglvwav
利用matlab语言，设计带通滤波器，对声信号进行滤波处理，除去环境噪声。(Using matlab language, designed bandpass filter, the acoustic signal filtering to remove noise.)

2011-08-30 11:16:15下载

积分：1
Code
说明：熵值法的Matlab实现代码每一步都有详细的说明(entropy method using Matlab)

2020-04-05 10:27:05下载

积分：1
Untitled27
利用MATLAB，对16QAM信号进行仿真。(The use of MATLAB, the simulation of 16QAM signal.)

2008-05-15 18:21:02下载

积分：1
new
This program takes the speech file and number of poles as inputs and gives LPC coefficients and the gain factor as output.Also includes code to find out LSFs.Code for LMS algorithm also included.

2014-08-19 17:34:46下载

积分：1
BPA
本人编写的BPAmatlab程序，用于神经网络学习。(I prepared BPAmatlab procedures for neural network learning.)

2013-10-25 21:19:47下载

积分：1
RBTO
坐结构可靠性的前程序，可以直接调用sigmund的99行，实现结构可靠性设计。(Reliability of the procedure before the ride, you can directly call sigmund 99 lines, to achieve structural reliability design.)

2010-09-28 16:53:41下载

积分：1
00
说明：主成分析在matlab中应用有源程序,关于主要因素的提取(Principal Component Analysis in matlab application has source code, the main factors on the extraction)

2008-05-26 02:49:42下载

积分：1
linear_system_identification.tar
The main features of the considered identification problem are that there is no an a priori separation of the variables into inputs and outputs and the approximation criterion, called misfit, does not depend on the model representation. The misfit is defined as the minimum of the l2-norm between the given time series and a time series that is consistent with the approximate model. The misfit is equal to zero if and only if the model is exact and the smaller the misfit is (by definition) the more accurate the model is. The considered model class consists of all linear time-invariant systems of bounded complexity and the complexity is specified by the number of inputs and the smallest number of lags in a difference equation representation. We present a Matlab function for approximate identification based on misfit minimization. Although the problem formulation is representation independent, we use input/state/output representations of the system in order (The main features of the considered identification problem are that there is no an a priori separation of the variables into inputs and outputs and the approximation criterion, called misfit, does not depend on the model representation. The misfit is defined as the minimum of the l2-norm between the given time series and a time series that is consistent with the approximate model. The misfit is equal to zero if and only if the model is exact and the smaller the misfit is (by definition) the more accurate the model is. The considered model class consists of all linear time-invariant systems of bounded complexity and the complexity is specified by the number of inputs and the smallest number of lags in a difference equation representation. We present a Matlab function for approximate identification based on misfit minimization. Although the problem formulation is representation independent, we use input/state/output representations of the system in order)

2008-08-03 10:18:16下载

积分：1

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