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Prabhan Purwar


Last seen: 3 days ago

MathWorks

54 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

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

3 days 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...

3 days 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...

4 days ago | 0

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....

4 days 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...

4 days 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...

4 days 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...

5 days ago | 0

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...

6 days 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...

7 days 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...

7 days 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 ...

2 months 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 ...

2 months 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 (...

2 months 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...

2 months 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) ...

2 months 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...

2 months 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 ...

2 months 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...

2 months 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...

2 months 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...

2 months 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...

2 months 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...

3 months 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...

3 months 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...

3 months 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...

3 months 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...

3 months 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...

3 months 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...

3 months 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...

3 months ago | 1

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Answered
Can we solve this on MATLAB?
Following equation can be solved by making use of curl() and vpasolve() functions, as shown in the below example code: syms x y...

3 months ago | 0

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