The frequency domain plays an important role in image processing to smooth, enhance, and detect edges of images. Although image data typically does not include imaginary values, the fast Fourier transform (FFT) has been used for obtaining spectra. In this paper, the fast Hartley transform (FHT) is used to transform two-dimensional image data. Because the Hartley transform is real valued, it does not require complex operations. Both spectra and autocorrelations of two-dimensional ultrasound images of normal and abnormal livers were computed.
资源简介:The frequency domain plays an important role in image processing to smooth, enhance, and detect edges of images. Although image data typically does not include imaginary values, the fast Fourier transform (FFT) has been used for obtainin...
上传时间: 2014-01-08
上传用户:1051290259
资源简介:The Hilbert Transform is an important component in communication systems, e.g. for single sideband modulation/demodulation, amplitude and phase detection, etc. It can be formulated as filtering operation which makes it possible to approxima...
上传时间: 2017-06-25
上传用户:gxf2016
资源简介:the code environment s C++. it is in image processing field. this code Read TIFF Image then it excute a Median Filter Classical on gray images. after that it Write TIFFU nsigned Char.
上传时间: 2016-12-24
上传用户:xiaoxiang
资源简介:the magnitude responses in dB of the window functions in the frequency domain
上传时间: 2014-01-08
上传用户:teddysha
资源简介:In communication systems channel poses an important role. channels can convolve many different kind of distortions to our information. In perticular wireless channels multipath distortion is sevear. and more sevear is such distortion is ra...
上传时间: 2013-12-08
上传用户:litianchu
资源简介:超声波换能器作为一种实用的检测手段,能实现声波所携带的信息和电能之间转换。它的性能优良,价格低廉,操作方便,易于调试,因此在工农业生产中发挥着重要的作用。但目前换能器驱动电路的发射频率多为40 kHz,本文针对1 MHz的超声波换能器电路进行了设计,...
上传时间: 2022-04-28
上传用户:
资源简介:Ns2 Tutorial,an important tool in communication research.
上传时间: 2017-04-06
上传用户:sjyy1001
资源简介:Accurate pose estimation plays an important role in solution of simultaneous localization and mapping (SLAM) problem, required for many robotic applications. This paper presents a new approach called R-SLAM, primarily to overcome systemat...
上传时间: 2019-09-15
上传用户:zhudx2007
资源简介:Broadband powerline communication systems are continuing to gain significant market adoption worldwide for applications ranging from IPTV delivery to the Smart Grid. The suite of standards developed by the HomePlug Powerline Alliance plays ...
上传时间: 2020-05-26
上传用户:shancjb
资源简介:Broadband powerline communication systems are continuing to gain significant market adoption worldwide for applications ranging from IPTV delivery to the Smart Grid. The suite of standards developed by the HomePlug Powerline Alliance plays ...
上传时间: 2020-06-06
上传用户:shancjb
资源简介:实验教学一直是工科教学中不可或缺的组成部分,对培养学生的动手能力,独立思考能力,创新思维与发散思维具有重要的作用。针对目前电路教学实验中电路仿真实验与实物电路实验各自独立,无法统一问题,提出将仿真电路实验与实物电路实验有机的结合同步操作,并使用We...
上传时间: 2022-04-05
上传用户:
资源简介:为适应双向DC/DC功率变换的电流采样需求,一种高精度高边电流采样电路被提出。其基本思想是在功率电路的高边串入采样电阻,借助电流镜原理并引入偏置电流电路,将双向电流均转换为正向电压输出。通过理论分析与仿真结合的方法对电流镜采样原理及4种不同的偏置电...
上传时间: 2022-04-22
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资源简介:The combinatorial core of the OVSF code assignment problem that arises in UMTS is to assign some nodes of a complete binary tree of height h (the code tree) to n simultaneous connections, such that no two assigned nodes (codes) are on th...
上传时间: 2014-01-19
上传用户:BIBI
资源简介:The production of this book required the efforts of many people, but two in particular deserve to be singled out for their diligent, sustained, and unselfish efforts. Sally Stickney, the book s principal editor, navigated me through that mi...
上传时间: 2016-07-15
上传用户:ve3344
资源简介:the code write C++. it is in image processing field. this code Read TIFF Image then it segment images. after that it Write TIFFU nsigned Char.
上传时间: 2013-12-29
上传用户:15071087253
资源简介:The program performs alpha seeding within LIBSVM Solvers. Please refer to: D. DeCoste and K. Wagstaff, "Alpha Seeding for Support Vector Machines for the meaning of alpha seeding".
上传时间: 2013-12-14
上传用户:曹云鹏
资源简介:some related work in image processing.
上传时间: 2014-08-07
上传用户:qw12
资源简介:《图像处理中的数学问题(英文版)》 Mathematical Problems in Image processing 偏微分方程和变分法用于图像处理始于15年前,从此人们一直在研究相关理论。本书向读者介绍了图像应用及相关的数学知识,本书自成一体,主要面向两类读者,一类是数学专业...
上传时间: 2015-11-12
上传用户:skfreeman
资源简介:VC++ using in image processing
上传时间: 2015-11-20
上传用户:sdq_123
资源简介:mathematical problems in image processing主要讲述的是图像处理(分割,恢复,去噪)中的一些数学知识。
上传时间: 2014-01-23
上传用户:refent
资源简介:it is in image processing field. this code Read TIFF Image then it excute compute histogram and histogram equalization. after that it Write TIFFU unsigned Char.
上传时间: 2016-12-24
上传用户:cx111111
资源简介:This program uses principle of the Image processing to find center of circles.
上传时间: 2017-04-12
上传用户:xieguodong1234
资源简介:segmentation code in image processing
上传时间: 2017-04-19
上传用户:阿四AIR
资源简介:This is a binary search tree with void* pointer in data segment in order you to search store and delete O(n) worst case, O(log(n)) agerage case data.
上传时间: 2013-12-22
上传用户:wys0120
资源简介:Sobel Filter in C. Sobel Filter may be used for edge detection application in Image processing applications
上传时间: 2014-11-29
上传用户:nanshan
资源简介:This code takes data received from a bearing and converts it from the time domain to the frequency domain in order to determine bearing defect size.
上传时间: 2017-03-11
上传用户:sunjet
资源简介:The Kalman filter is an efficient recursive filter that estimates the state of a linear dynamic system from a series of noisy measurements. It is used in a wide range of engineering applications from radar to computer vision, and is an impo...
上传时间: 2017-08-06
上传用户:风之骄子
资源简介:Learn how to build a custom Linux® distribution to use in an embedded environment, in this case to drive a Technologic Systems TS-7800 single-board computer. In this tutorial, you learn about cross-compiling, the boot loader, file syst...
上传时间: 2013-12-23
上传用户:stella2015
资源简介:These MATLAB functions were created for the book Digital Image processing Using MATLAB (DIPUM), by R.C. Gonzalez, R.E. Woods, and S.L. Eddins, Prentice Hall, 2004, ISBN 0130085197. The functions supplement and extend the image processing...
上传时间: 2013-12-18
上传用户:天涯
资源简介:An important book that cover wavelet domain. It help a lot in understanding wavelets and their applications. Beside explanations of the transform and application of this, there are also presents the reasons why wavelets are better than Fou...
上传时间: 2017-06-14
上传用户:lanhuaying