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Last seen: 2 mois il y a |  Actif depuis 2022

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what format I should save my volumetric data to upload it in 'Volume Viewer' app?
I have an ultrasound video clip and I want to plot it as a 3D rendered. I want to use 'Volume Viewer' app but when I upload eit...

plus d'un an il y a | 1 réponse | 0

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Question


what is wrong with ifft process on this image?
I want to apply some processing and changes on my 2D signal and then take it back to time/spatial domain by using ifft, but I do...

plus d'un an il y a | 2 réponses | 0

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I receive "Could not find version 9.11of the MATLAB Runtime" when running my compiled app, my MATLAB Runtime is 9.13. so this specifically need 9.11 to be run?
I have a file and I want to open it but it gives me a runtime error. My previous version was 2021a. I found a similar question ...

presque 2 ans il y a | 1 réponse | 0

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why the fft results of these functions are not what I expect?
I have three functions; a sinusoid, square and sawtooth. The fft of sine is what we expect in fourier domain. But I expect to se...

presque 2 ans il y a | 1 réponse | 0

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why fft of an even and real signal in time domain gives imaginary part?
This is the question: a. Create a real and even-symmetric signal for use as a test signal. Since this is easiest to do when the...

presque 2 ans il y a | 2 réponses | 0

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how to read data from box(cloud storage)?
I have a dataset with a large memory that I can't save all of them on my pc. This data are in box cloud and I found a similar qu...

environ 2 ans il y a | 2 réponses | 0

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ow to convert a 3Dplot to 2D?
I have a code to generating phantom data in MATLAB but my final plot is in 3D. I searched throught mathwork and could find some...

environ 2 ans il y a | 1 réponse | 0

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Question


What is the "-20dB" bandwidth of a signal and how to calculate it in MATLAB
I searched to find the answer, I could find the 3dB bandwidth which is half power bandwidth and there is function to find that i...

environ 2 ans il y a | 1 réponse | 1

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Réponse apportée
plot an specific function in matlab
I could find the answer to this question after some search and I'll answer it for anyone who came up with the same question in t...

environ 2 ans il y a | 0

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Question


plot an specific function in matlab
I have this equation to be plotted, I wanted to know if there is any specific function for this equation or not, somethins like ...

environ 2 ans il y a | 2 réponses | 0

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curve fitting in MATLAB by using curve fitting tool
I have a data that should fit a gaussian into it and then finding the center frequency and sigma, I use curve fitting tool in th...

environ 2 ans il y a | 1 réponse | 0

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Question


which part of my logic is wrong?
I wanna plot the equation given below for w=(3:0.01:7)*1e6 and the written values in the code, I should have a plot of R based o...

environ 2 ans il y a | 1 réponse | 0

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Question


how to design a single cycle square wave?
I want to design a single cycle square wave and for theat I am using 'square' function but I don't know how to make it a single...

environ 2 ans il y a | 1 réponse | 0

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Question


why my conditional function is not what I expected?
I have this question to solve: this is my program: close all clear all x = -3:0.5:3; y = -3:0.5:3; [X,Y] = meshgrid(x,y)...

environ 2 ans il y a | 3 réponses | 0

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Question


calculating attenuation in RF data of ultrasound
I am running into something I have not yet managed to figure out after quite some googling. I should find the attenuation of an ...

plus de 2 ans il y a | 1 réponse | 0

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Question


how can I have a single number as the result of dividing two numbers?
I am implementing this formula in MATLAB: I[i], is the intensity of my signal and i is the index for each row. My code is as ...

plus de 2 ans il y a | 2 réponses | 0

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Question


I have three images that should have similar range of histogram is the rescaling a correct procedure?
I have three images that should have similar range of histogram is the rescaling a correct procedure or there may be better solu...

plus de 2 ans il y a | 3 réponses | 0

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Question


How to fix a parameter in fitdist function?
I am trying to fit burr distribution to my data, but for the simplicity of my algorithm, I should assume c=2 in burr distributio...

plus de 2 ans il y a | 1 réponse | 0

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Réponse apportée
i have a homework that i have been stuck on, can anyone help ?
you can change parameters to see how this will change. Also, in gaussian distribution, there is another important parameter name...

plus de 2 ans il y a | 0

Question


how to manual crop an ultrasound image
I have an ultrasound iamge and I should a rectangual ROI manually like Ithis image: but when I use imcrop it does not plot th...

plus de 2 ans il y a | 2 réponses | 0

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Question


how to fit an exponential curve to my signal in a plot?
I have a signal and I should fit an exponential curve to it. This curve should be made based on the max imum peaks in the signal...

plus de 2 ans il y a | 1 réponse | 0

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Question


uploading dataset from google drive
I have a dataset in my google drive and I wanna upload it, but it gives me an error that it can't open the file. I am using 'loa...

plus de 2 ans il y a | 1 réponse | 0

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Question


I wanna know how imadjust is working. The whole algorithm and its reference paper.
Hi everyone, I am looking for the refrence paper of imadjust in matlab. I searched throught its library in matlab but I couldn'...

plus de 2 ans il y a | 1 réponse | 0

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Réponse apportée
I should convolve my signal with which function to have the signal itself?
I find out my issue with dirac. tt = -100:0.1:100 y=dirac(tt); idx=y==inf; y(idx)=1; plot(tt,y);

plus de 2 ans il y a | 0

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I should convolve my signal with which function to have the signal itself?
I should convolve my signal with a function and have the signal itself. I read on the internet that dirac function will be the s...

plus de 2 ans il y a | 2 réponses | 0

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Question


how can I have a perfect rect function as the result of applying fft on sinc function?
I have to generate a perfect rectangle as the fft result of the sinc function. I am working with different parameters to achieve...

plus de 2 ans il y a | 1 réponse | 0

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Question


how to find the right frequency axis when we take the Fourier transform of a function?
I want to know how to find the correct frequency axis when I am taking the fourier transfor. To make it clear, we know that for ...

plus de 2 ans il y a | 1 réponse | 0

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Question


filtering by filter function and having a shift
I have a signal and applied a filter by using filter function in matlab (the built in filter function of matlab). I added paddin...

plus de 2 ans il y a | 1 réponse | 0

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Question


why after applying imadjust it gives me a white picture?
I applied imadjust on my image and the first time it was working and gave me a hight contrast image but the 2nd time ,it is givi...

plus de 2 ans il y a | 1 réponse | 0

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Question


how many paddings I need for my signal?
I have a signal and a filter with this size: 1*282 now I dont know how many paddings I should add to my signal.

plus de 2 ans il y a | 1 réponse | 0

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