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michael scheinfeild


Last seen: 1 year ago |  Active since 2010

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

3 years ago | 0

Answered
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 years ago | 15

Answered
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 years ago | 0

| accepted

Question


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 years ago | 0 answers | 0

0

answers

Answered
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 years ago | 0

Submitted


Deepnet
Deep Learning

6 years ago | 2 downloads |

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

6 years ago | 0

Question


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 years ago | 2 answers | 0

2

answers

Answered
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

8 years ago | 1

Solved


Make a checkerboard matrix
Given an integer n, make an n-by-n matrix made up of alternating ones and zeros as shown below. The a(1,1) should be 1. Examp...

8 years ago

Solved


Find the sum of all the numbers of the input vector
Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...

8 years ago

Answered
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 years ago | 0

Question


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 years ago | 2 answers | 0

2

answers

Question


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 years ago | 1 answer | 0

1

answer

Solved


Uniform binary crossover
Given two binary vectors, return the two children by combining the genes of them using a binary crossover mask. More informat...

9 years ago

Submitted


Deep Learning Lecture Regularization
deep learning introduction , fitting use kernel

9 years ago | 1 download |

Answered
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...

9 years ago | 0

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

9 years ago | 0

Question


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

9 years ago | 2 answers | 0

2

answers

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

9 years ago | 0

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

9 years ago | 0

Question


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

9 years ago | 3 answers | 0

3

answers

Answered
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 years ago | 0

| accepted

Answered
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 years ago | 0

Question


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 years ago | 0 answers | 0

0

answers

Answered
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 years ago | 0

Answered
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 years ago | 0

Answered
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 years ago | 0

| accepted

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

9 years ago | 0

| accepted

Answered
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...

9 years ago | 0

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