Community Profile Mohsina Zafar

28 total contributions since 2017

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Question

Non-planar robot Dynamics error using Roy Featherstone's Spatial toolbox
I am using this code to test robot dynamics of above robot using Spatial Toolbox: FDab(rob, [0;0;0], [0;0;0], [0;0;0]) But it...

3 months ago | 0 answers | 0

0

Spatial toolbox robot model
I changed the code and now it works properly. rob.Xtree{1} = rotx(1.57) * xlt([0 0 0]); rob.Xtree{2} = roty(1.57) * xlt([0.15,...

3 months ago | 0

| accepted

Question

Spatial toolbox robot model
I want to model these D-H parameters in spatial toolbox: Link: alpha, a, theta, d Link 1 : -9...

3 months ago | 1 answer | 0

1

Question

3 DOF robot torque not converging Robotics Toolbox
I have a Simulink model in which desired torque is [0;0;0] and current torque should converge to zeros too. But I am getting o...

3 months ago | 0 answers | 0

0

3-DOF Robot Dynamics error in Robotics Toolbox
The error was due to no mention of motor inertias. I have set them to: for i=1:3 robot.links(i).Jm = 2.1184*10^-4; end and t...

3 months ago | 0

| accepted

Question

3-DOF Robot Dynamics error in Robotics Toolbox
Hello, I am trying to compute dynamics of 3 DOF robot using Robotics Toolbox by executing this code: robot.accel(q, zeros(1,...

3 months ago | 1 answer | 0

1

Question

For loop error: Subscript indices must either be real positive integers or logicals
I am executing a for loop but it gives following error at time 0.6: T_o=[0;0;0]; T_d=[0;0;0]; T_l=[0;0;0]; out_n=zeros([],3)...

3 months ago | 2 answers | 0

2

Question

Need Instantaneous PID Value
I am using PID controller and the input is 3x1. The output I am getting is in 3x1 tf format. But I need it to be 3x1 double at ...

3 months ago | 1 answer | 0

1

Question

Dynamics of robot in Simulink using Robotics Toolbox
I am trying to convert robot torque to acceleration, velocity and position (robot dynamics). I was doing it manually but the dy...

3 months ago | 0 answers | 0

0

Question

Forward Dynamics of Robot using Robotics Toolbox
I am using robotics toolbox to compute the forward dynamics of a robot but I am unable to get the torque function to compute it....

3 months ago | 0 answers | 1

0

Question

Torque Simulink model to script file
I am trying to code a Simulink model. I am using 2 sec simulation time and my input has values against the time 0:0.1:2 The out...

4 months ago | 0 answers | 0

0

Question

Simulink model 'to workspace' output
I am trying to control motor torque and am using a workspace variable in Simulink and want to output similar variable to workspa...

4 months ago | 1 answer | 0

1

Question

Numeric answer for PID command
I used a Simulink PD model and used values: P=100; D=10; N=100 The input I am giving is [0;0;0]-[0.05*(10-t);0.04...

4 months ago | 1 answer | 0

1

Question

Forward and Inverse Kinematics for robot
Hello, Hope you are doing well. I am verifying the output of my forward kinematics through inverse kinematics and the resu...

4 months ago | 1 answer | 0

1

Question

Exoskeleton torque plot is wrong
Hello, I need to plot torque of human arm and assistive torque of exoskeleton. I have the reference plots but my graphs are d...

6 months ago | 0 answers | 0

0

Question

Incorrect results and plots simulink
Hello, I am trying to achieve the desired plots on simulink but am unable to do it. I think I am using the correct block diag...

6 months ago | 0 answers | 0

0

Question

Simulink model of system
Hello, I have a system that I coded in Matlab .m file. As I have to extend it further into a complex control loop, I wish to ...

7 months ago | 0 answers | 0

0

Question

Robot not being plotted on 3D
Hello, I want to plot a robot but it is not coming to be. A 2-D plane is being generated instead of 3D space. Attached is the...

10 months ago | 1 answer | 0

1

Question

How to remove certain pixels in an image and apply change on grayscale image?
Hello, I have a grayscale image (right) and have converted it into a logical image (left). The original image has reflections...

1 year ago | 0 answers | 0

0

Question

How to convert kmeans output into binary and calculate gradient colour vector?
Hello, I have classified an image using kmeans clustering. The code is attached below. Now I want to convert the kmeans outpu...

2 years ago | 0 answers | 0

0

Question

How to measure dimensions of region boundary plot?
Hello, I have an image (from MATLab example) and I want to know the number of pixels in/dimensions of the green boundary. As ...

2 years ago | 1 answer | 0

1

Question

How to isolate circle in image
Hello, I had an image from which I have detected the circle. Now that it has been detected, I want to retain only the circula...

2 years ago | 0 answers | 0

0

Question

How to find the circle in image?
Hello, I have an image and I am unable to extract the circle in it. I have used all the methods including regionprops, imfind...

2 years ago | 1 answer | 0

1

Question

How can I train a dataset to find similar shades of a colour?
Hello, I have thousands of images that I want to train. But I want to know the method that I can use to find the images of th...

2 years ago | 0 answers | 0

0

Question

Binary Image - Black region detection
I have a binary image (attached) from which I want to detect and create bounding boxes around small black regions (as shown in b...

2 years ago | 1 answer | 0

1

Question

Extract diseased crops from image
I have an image (attached) bearing diseased crops. I have 300 such images. I need to extract the diseased portion and create a b...

2 years ago | 0 answers | 0

0

Question

Make black and white pixel image of a grid
I have this function which generates a 12x12 maze with lines as borders of the maze. I need to convert it into a monochromatic i...

2 years ago | 1 answer | 0