michael scheinfeild

Last seen: 1年以上前 | 2010 年からアクティブ

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computer vision in IOS , opencv , and for androind image processing machine learning signal procesiing c++,c#,matlab,c Professional Interests: image processing

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How to draw normal line at given points ?
https://michaelsheinfeild.medium.com/unit-normal-vector-to-curve-d63ef0124acd

約3年前 | 0

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Error: Undefined function 'preprocessData' for input arguments of type 'cell'.
some fix needed in preprocessing , first round and be sure it is positive top left , i think maybe check box outside image will ...

4年以上前 | 15

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Neural network - target dataset
i suppose first you can normilize the train set and use it to normalize test set meant=mean(train) mint=min(train) maxt=max...

4年以上前 | 0

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training deep network accuary goes to 0 ?
hi i train lstm network and receive bad accuracy during the train what parameters i can change, layers to add <</matlabcent...

6年以上前 | 0 件の回答 | 0

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Error in using trainNetwork with training data and labels
hi i have similar issue and cant solve it i also look at the example <https://www.mathworks.com/help/nnet/examples/classify-se...

6年以上前 | 0

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how to find large curvature location
the file is there https://www.mathworks.com/matlabcentral/fileexchange/37388-fast-2d-peak-finder

6年以上前 | 0

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how to find large curvature location
i want to detect the curve point in the lines the lines themselves not straight <</matlabcentral/answers/uploaded_files/10...

6年以上前 | 2 件の回答 | 0

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Which classifier SVM or Neural Network is better for accurate results?
it dependes on your data type and amount of data, deep learning is for large amount of data. svm is easiar to start and check

約8年前 | 1

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neural network to detect points in signal
<</matlabcentral/answers/uploaded_files/48690/net.png>> more complex example . the marked lines are outputs as one. they repr...

8年以上前 | 0

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neural network to detect points in signal
i have two signals they look like sine wave but with some noise . in this signals of length 100 each i have 1-5 points each time...

8年以上前 | 2 件の回答 | 0

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folder name starts with +toolboxA what it means
hello i download some package and now inside there are folders and subfolder all starts with + so i cant add all the paths and a...

9年弱前 | 1 件の回答 | 0

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download images from web api google
thank you but how to downloaded the images or read them ? i receive now : *x=urelread(url)* = !doctype html><html dir="rtl...

約9年前 | 0

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Statistics: column scatter plot / 2D-dot plot + mean + std dev
gscatter(x,y,group) this will plot each group in different color

約9年前 | 0

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download images from web api google
hi i want to search images of trees and download them as jpg i know there is google api how yo use it for images download

約9年前 | 2 件の回答 | 0

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how to create string includes '
but the length is ok so it may be helpful to me

9年以上前 | 0

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how to create string includes '
not works b='abc"' b = abc"

9年以上前 | 0

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how to create string includes '
i have string ['_ ,,,77 - -'''''"''"i''-_G8" '] but it is illegal how to create it

9年以上前 | 3 件の回答 | 0

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how can I sum 2 or more sine waves into one sine wave?
just z=x+y if x and y different lengths you can interpolate it to correct length

9年以上前 | 0

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Support vector Training, SVM Train
if you have 1 feuters just use histogram and fit to some Gaussian model determine the threshold it seems what you did is corre...

9年以上前 | 0

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how locate words in ocr of image
hi i have result of ocr which is text and words and bounding boxes. then in all text i want to find for example date so i use r...

9年以上前 | 0 件の回答 | 0

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how can i plot data of different types using matlab plot(x,y) ?
you can try to conver each of cell array by split 23/05/15 to 3 parts by search "/" the you can code it to index = year*10+mon...

9年以上前 | 0

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Subtraction between the rows of matrix
just prepare the row index before as example : a=[ 1 2 3 4; 5 6 7 8; 9 10 11 12; 13 14 15 16] a = 1 2 3...

9年以上前 | 0

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How do I calculate the impulse response?
f=100;% frequanecy fs=1000; n=[1:1000]*f/fs; u=ones(n,1) x(n)=2*cos(0.5*pi*n).u(n); % ~ (check indexes im not...

9年以上前 | 0

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How can i modelling Radar scaning area?
http://www.labbookpages.co.uk/audio/beamforming/delaySum.html

10年弱前 | 0

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How can i modelling Radar scaning area?
hi start with beamforming create target at some range and angle determine your beamformer parameters : number staves, distance...

10年弱前 | 0

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how to fit gaussian model and plot it
hi i have vector of 1000 numbers i want to fit Gaussian model i use [n,cent]=hist(x,50) then bs = glmfit(cent,n,'no...

10年弱前 | 1 件の回答 | 0

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problem with dir function in R2014A
so there is no quick solution , what i did is rename all files to a(1).jpg , a(2).jpg ant then run in loop where name is n...

10年弱前 | 0

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How to rotate a line about center point??
use imrotate or calculate the affine transform

約10年前 | 0

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How to save matrixes to files with similar names in loop?
files=dir(fullfile("data","*.dat"); for(n=1:length(files)) d=files(n).name; somename=strcat('a','bla',num2str(n));......

約10年前 | 0

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xcorr 2 max indexes
hi i want to find the max index of corner i do 2 times xcorr 2 in the left i have good index while in the right not <</matla...

約10年前 | 0 件の回答 | 0

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