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scikit-image-master
scikit-image: Image processing in Python:Python编写的图像处理程序,可直接调用,是学习python图像处理的很好参考。(scikit-image: Image processing in Python:Image processing program written in Python, can be called directly, is to learn Python a good reference to the image processing.)
- 2015-04-18 13:10:51下载
- 积分:1
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Locating-Voltage-Sags
电压跌落是最严重的动态电能质量问题之一,
精确定位电压跌落起止时间是应对电压跌落问题的
重要前提和基础。由于电压采样信号往往有噪声分
量,现有的方法在定位电压跌落的起止时间时存在
局限性。本文提出利用多小波变换及相邻系数去噪
的电压跌落定位方法。多小波兼有对称性、正交性、
有限支撑性和二阶消失矩等优异的信号处理性能,
利用GHM多小波可以准确定位电压跌落起止时间。
多小波变换系数在每层之间具有对应关系,多小波
相邻系数将紧相邻的若干个系数作为一个整体来确
定阈值,考虑了系数之间的相关性,能获得更好的
去噪效果。通过 Matlab 进行仿真验证,仿真结果表
明,所提出的方法的正确性。
(Voltage sag is one of the most serious
dynamic power quality problems. Critical start-time
and end-time are important indices for voltage sags.
But the sampling signals often have noisy component,
the locations of start-time and end-time are hard to get.
Wavelet is an effective tool for those non-stationary
signal processing and has been used in this field. Local
feature in the signal can be enlarged after the
transformation using the scalar wavelet. But scalar
wavelets cannot contain orthogonality, symmetry,
compact support and higher order of vanishing
moments simultaneously. In this thesis, multi-wavelets
GHM is used to detect and locate power quality
disturbances. Multi-wavelets offer many excellent
properties such as the same approximation order but
more compact support. The dependence of the
multi-wavelets coefficients varies with the level, so
neighboring coefficien)
- 2014-03-25 17:08:50下载
- 积分:1
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边缘分割程序
边缘图象分割程序,是使用vb编程,希望有帮助(edge image segmentation procedures, the use of vb programming, with the hope of helping)
- 2005-05-20 22:01:50下载
- 积分:1
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add_noising
说明: my_noise文件是已知信号方差,加入信号噪声,可以加入高斯噪声,淑盐噪声,等其他噪声十分有用
其他两个函数时加入噪声信噪比SNR,但是有一点,这种方法并不准确,不能保证加入噪声信噪比为SNR,实际测试中可以看出,但是可以加入相同的信噪比的噪声(my_noise document is known to signal variance, by adding signal noise, Gaussian noise can be added, suk salt noise, noise, and other very useful function when the other two noise signal to noise ratio SNR, but there is one point, this method is not accurate , can not be guaranteed by adding the noise signal to noise ratio for the SNR, the actual test can be seen, but can join the same noise signal to noise ratio)
- 2008-10-06 13:19:56下载
- 积分:1
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code
说明: 提取视频中的图片,每一帧的信息,把视频分为图片信息(get picture of video)
- 2019-03-21 11:56:17下载
- 积分:1
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000siftDemo
双目视觉 图像匹配 sift特征提取与匹配 极线校正(Binocular vision image matching sift feature extraction and matching polar line correction)
- 2018-04-12 08:56:10下载
- 积分:1
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matlab实现国旗识别
利用各种向量函数实现matlab中对于图像特征的识别(image recognition)
- 2018-11-13 10:07:39下载
- 积分:1
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filter_methods
改进的LEE,FROST,KUAN滤波,适合于任何图像滤波,可作为参考滤波比较()
- 2008-04-09 11:24:09下载
- 积分:1
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作品
3dx的作业,一个不错的程序,难度易(3dx operations, it is a good procedure, the difficulty Yi)
- 2005-01-13 13:18:54下载
- 积分:1
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toushi
图形学中的透视投影算法 在屏幕中心绘制立方体的透视投影 可以绘制一点透视图 二点透视图 三点透视图(Graphics in the perspective projection algorithm for drawing a cube in the center of the screen you can draw a little perspective projection perspective two point perspective three-point perspective)
- 2020-11-18 23:39:40下载
- 积分:1