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Prabhan Purwar


Last seen: 5 jours ago

MathWorks

55 total contributions since 2019

I am an EDG Engineer at Mathworks. My area of interest is works related to Signal processing, Augmented Reality, Artificial Intelligence, Image Learning, and Machine Learning.

Disclaimer: Any advice or opinions are purely my own and not in any way that of MathWorks.

Prabhan Purwar's Badges

  • Revival Level 2
  • 3 Month Streak
  • Knowledgeable Level 2
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Answered
how to calculate area of different components in an image?
Using the matrix B provided and assuming connectivity to be along the horizontal or vertical direction only. Following code may...

17 jours ago | 0

Answered
Bounding box errors for rcnnobjectdetector
Could you attach the gunsGT folder, so that we can replicate the issue.

environ un mois ago | 0

Answered
What noise is used in the measurement example throughput?
Hi, I am assuming that you are referring to the following example: https://in.mathworks.com/help/wlan/examples/802-11-mac-and...

environ un mois ago | 0

Answered
App Designer: How to use a camera in different Callbacks
Hi, Folllowing is the code and app design classdef app1 < matlab.apps.AppBase % Properties that correspond to app com...

environ un mois ago | 0

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Answered
Plot size varies even when plotting in a loop
Hi, Following links may help: https://in.mathworks.com/help/matlab/creating_plots/save-figure-at-specific-size-and-resolution....

environ un mois ago | 0

Answered
How to uninstall Matlab when it gives u an error?
Hi, The following instructions explain how to uninstall and then reinstall MATLAB on Windows: NOTE: If you have saved any pers...

environ un mois ago | 0

Answered
Prespectrive transform for Lane detection project
Hi, Following code may help clc close all clear oim = imread('test1.jpg'); im=oim(475:650,300:1050,:); initial_points=[5...

environ un mois ago | 0

Answered
Detection format from 'Simulation 3D Probabilistic Radar'
Hi, The Signal coming out via Ego Sensors block is a "Bus signal" comprising of Number of detection, Measurements, and other pa...

environ un mois ago | 1

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Answered
How to store an interpolated data to get the mean for each new point in X?
Hey, The mean of the interpolated values could be found out using the mean() function in the loop. You may make use of Cell ar...

environ un mois ago | 0

Answered
merge two cells to one in loop
Hi, Following code may help clc close all clear data.values=ones(20,200); for i=1:10 A{i}=data.values(:,192); B...

environ un mois ago | 0

Answered
using 3x1 matrix to make 21x1 matrix
Hey, Following command may help: f_out = [f(1);repmat([f(2);f(1)+f(3)],10,1)]; Could you elaborate more if this is not the de...

environ un mois ago | 0

Answered
Finding Binary Values on 3D matrix
Following code illustrates the find() function upon 3D matrix a(:,:,1) = 0 0 0 0 0 0 0 0 ...

3 mois ago | 0

Answered
Spectral Clustering of Image
Hello, The following paper illustrates the use of ASM-based segmentation upon data obtained from spectral partitioning. (Refer ...

3 mois ago | 0

Answered
How to run Hough transform in real time?
Hi, You may make use of GPU accelerated Hough transform algorithm to detect a circular object in the acceptance rate of 7 fps (...

3 mois ago | 0

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Answered
How to make a video of two plots rather than one
Hi, Make use of subplot() to get side by side comparison, as illustrated in the code below. h = figure; subplot(2,1,2); plot...

3 mois ago | 0

| accepted

Answered
how can I make this nonstationary signal's dft graph?
Hi, The following code illustrates a method to find DFT of a nonstationary signal. a=1; f=[5 20 50 1000]; for i=1:length(f) ...

3 mois ago | 1

| accepted

Answered
How to configure the input signal as a step input for a PID tuner?
Hi, Following link's may help https://www.mathworks.com/help/control/ref/pid.html#bsmdmvx-5(PID) https://www.mathworks.com/di...

3 mois ago | 0

Answered
Code running, but not being displayed in command window?
Hi, The code seems to be good and functioning as expected (please look over the attachment). Could you please elaborate on the ...

3 mois ago | 0

Answered
Understanding How to Manually Code the KDTreeSearcher
Hi, The nearest neighbour search (NN) algorithm aims to find the point in the tree that is nearest to a given input point. This...

3 mois ago | 0

Answered
Use unique on a cell array containing two columns
Hello, Kindly provide a small subset of data to replicate your problem. The following link may be helpful: https://www.mathwo...

3 mois ago | 0

Answered
Bar Graph attached to Live maping
Following link may help: https://www.mathworks.com/help/matlab/creating_plots/color-analysis-with-bivariate-histogram.html(Colo...

3 mois ago | 0

Answered
TIme shifting an audio in a frequency domain
Hey, The following code illustrates the Time-shifting of a signal in the frequency domain. [data,fs] = audioread('FemaleSpeec...

3 mois ago | 0

Answered
solving problem for gradient descent
Hi, Following code Illustrates the working of Gradient Descent for 3 variables. To eliminate error changes were made to: Init...

4 mois ago | 0

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Answered
Spline coefficients for data point
Hello, Spline definesa polynomial among the breakpoints in the curve. To define the coefficient at a particular ‘x value’ there...

4 mois ago | 0

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Answered
Trace a meandering line
Hello, Following are the links to various codes and methods used for Skeletonization https://www.mathworks.com/matlabcentral/f...

4 mois ago | 0

Answered
How to make 3D image with 2D images at different angle completing 360 deg
Hi, 3D Image construction could be performed by making use of the following techniques: Making use of Photometric Stereo to re...

4 mois ago | 0

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Answered
distance between object moving
The following code illustrates the working of regionprops()function to determine the boundary along with the connected component...

4 mois ago | 0

Answered
Integrating a standard ellipse using mvnlps
Hi, Mvnlps() is one of the several submissions in MATLAB File Exchange on MATLAB Central which is a forum for our product users...

4 mois ago | 0

Answered
R-Squared in Curve-fitting Tool
Hello, Different methods weight the residuals differently while Fitting the curve, leading to a different curve, which is respo...

4 mois ago | 0

Answered
More Training data for R-CNN detector causes overfitting?
Hi, Overfitting happens when the model fits too well to the training set. It then becomes difficult for the model to generalize...

5 mois ago | 1

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