Preetham Manjunatha
University of Southern California
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Have 3 submissions connected to GitHub
Awarded to Preetham Manjunatha on 02 Aug 2021
Accept 5 answers given by other contributors
Awarded to Preetham Manjunatha on 02 Aug 2021
Answer 1 question that was unanswered for more than 30 days
Awarded to Preetham Manjunatha on 23 Jul 2021
Provide your first answer ever to someone else's question
Awarded to Preetham Manjunatha on 23 Jul 2021
Publish your first submission
Awarded to Preetham Manjunatha on 21 Jul 2021
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Awarded to Preetham Manjunatha on 09 Oct 2019
Content Feed
Submitted
3D space tiling (partition/divide the 3D space w/wo overlap)
Divides the 3D space with or without overlaps. Tested on 3D point clouds.
15 days ago | 7 downloads |
Submitted
Custom colormap
Creates a custom color map given the RGB triplet array.
1 month ago | 5 downloads |
Submitted
Acceleration to velocity and displacement using DSP filters
Filters and converts the acceleration data to velocities and displacements using the signal processing algorithms.
1 month ago | 12 downloads |
Submitted
Curvature measure and visualization
Measures the shape properties of the object boundaries and displays the curvature.
1 month ago | 8 downloads |
Submitted
Probability density functions distance and similarity
Measures the distances and similarities between two probability density functions of signals.
2 months ago | 4 downloads |
Submitted
Image to cylindrical and spherical projection/warping
Cylindrical and spherical coordinates projection
2 months ago | 2 downloads |
Submitted
Shape curvature histogram
Feature vector of the curvature histogram of the shapes.
2 months ago | 7 downloads |
How to calculate the curvature of a boundaries in binary images?
Here this function measures the curvature and other shape properties. In addition, it displays the curvature. Here is the T-...
2 months ago | 1
How to measure the curvature of object boundary?
Here this function measures the curvature and other shape properties. In addition, it displays the curvature.
2 months ago | 0
Question
Memory problem when accessing and copying the 3D array elements by subscripts
I am trying to access/copy values from an image 3D array to another 3D array using the subcripts (rows and columns). I am trying...
2 months ago | 1 answer | 0
1
answerQuestion
Cylindrical projection from image normal coordinates
I am trying to project normal image coordinates to cylindrical projection using the MATLAB's imwrap function. But the output...
2 months ago | 0 answers | 0
0
answersQuestion
How to use the MATLAB Computer Vision toolbox's bundle adjustment for automatic panoramic image Stitching?
I am trying to implement automatic panoramic image stitching as in the Panorama. I have obtained the connected components of the...
2 months ago | 0 answers | 0
0
answersHow Do I Move a Set of (x,y,z) Points so they Align with the X-Y Plane?
Fit a oriented bounding box and obtain the orientation of that bounding box and invert the rotation matrix of the Euler angles. ...
2 months ago | 0
how to fit a plane to my point cloud data and rotate it so that the plane is parallel to the x-y plane.
Fit a oriented bounding box and obtain the orientation of that bounding box and invert the rotation matrix of the Euler angles. ...
2 months ago | 0
Question
How to linearize the nested parfor loop?
I have two variables i,j, where j index start depends on i index. n = 3; for i = 1:n for j = i+1:n % Feature mat...
2 months ago | 1 answer | 0
1
answerQuestion
Find unique images from a folder
I have a folder full of images of video frame sequences of same class of varying sizes of frame number extracted from a large vi...
7 months ago | 1 answer | 0
1
answerQuestion
Machine learning model (neural network or SVM) for unequal feature matrices size
I have feature matrices obtained from visual bags of words model for various dictionary sizes. Example, Nx5, Nx10, …., Nx15000. ...
8 months ago | 0 answers | 0
0
answersQuestion
How to convert MATLAB binary feature matrix to decimal?
I have binary feature matrices from BRISK, FREAK and ORB descriptors with 512 number of bits. I tried to use: d = bi2de(featu...
9 months ago | 1 answer | 0
1
answerQuestion
Bar3 plot increase bar thickness
I am trying to plot the stacked bar3 plot. How to increases the thickness of the bars? All the bars look flat. I need something ...
1 year ago | 1 answer | 0
1
answerQuestion
MATLAB parfor index exceeds the number of array elements
Why MATLAB throws an error even if it shouldn't go to the first case of the switch statement? Below is the minimal example: myc...
1 year ago | 1 answer | 0
1
answerQuestion
GPU-based anisotropic filtering of grayscale images
There are quite a number of contribution on sequential anisotropic diffusion filtering. Are there any GPU-based parallel anistro...
1 year ago | 1 answer | 0
1
answerQuestion
MATLAB sgtitle overlapping with the title of the subplots
When I use the subplots with group title (sgtitle), the title of subplots on top are overlapping with the group title. Does anyo...
2 years ago | 1 answer | 0
1
answerQuestion
How to set point cloud transparency?
Suppose I have aligned two point clouds, how can I set transparencies for each point clouds? I tried with the below lines: src_...
2 years ago | 1 answer | 0
1
answerQuestion
Matlab figure(s) suppression not working
Hello: I have some issue suppressing the figure(s) in Matlab. I referred to these solutions <https://www.mathworks.com/matlab...
3 years ago | 2 answers | 0
2
answersQuestion
Overlay imagesc on binary image
Hi Matlab users: I am trying to overlay an imagesc image on top of a binary image. I searched for it online, but no luck. Bel...
3 years ago | 0 answers | 0
0
answersQuestion
Neural network for bags-of-visual-words giving a pretty bad training/testing results.
Dear All: I created a feature matrix using (encode, bagOfFeatures functions) visual-bags-of-words using computer vision toolb...
4 years ago | 0 answers | 0
0
answersQuestion
Visual bag-off-features evalute vs. fitcecoc classification results are very different
Dear All: I have few questions regarding vision toolbox's visual bags-of-features class. Firstly, I have a feature matrix cre...
4 years ago | 0 answers | 0
0
answersQuestion
Issue with getframe and getimage commands while saving the image (image size mismatch).
Hello: I have an issue while using getimage() command. I am trying to use a figure, first with imshow to initialize a color ima...
4 years ago | 1 answer | 0
1
answerQuestion
How to train a classifier and test it separately?
Good day, I have a beginner experience in using the Matlab, Neural Network Toolbox. My question is: I have some N x 22 featur...
7 years ago | 1 answer | 0
