Preetham Manjunatha

University of Southern California

Last seen: Today | Actif depuis 2014

Followers: 1 Following: 0

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Enthusiastic and versatile Research Associate with a Ph.D. in Applied Computer Vision and Machine Learning.

Programming Languages:
Python, C++, C, MATLAB, HTML, CSS, Shell
Spoken Languages:
English, Hindi
Pronouns:
He/him
Professional Interests:
AI for Signals and Images, Image Processing and Computer Vision, Data Synthesis

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Parfor "Out of Memory during deserialization" in large matrix operations
I am trying to use parfor for a large matrix operation. I am getting Out of Memory during deserialization error. Is there a way ...

2 mois il y a | 1 réponse | 0

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réponse

Question

Why imwarp isn't working for cylindrical projection?
I am trying to find the cylindrical projection of an image using the cylindrical projection equations. After finding the warpped...

3 mois il y a | 1 réponse | 0

1

réponse

Question

How to vectorize this nested for loop?
I am finding the cylindrical projection of an image given the camera intrinsic matrix and the distortion coefficients. After fin...

3 mois il y a | 1 réponse | 0

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réponse

Réponse apportée
How do I directly covert a depth image to 3-D point cloud?
This link can help to convert RGB-D images to point cloud, provided the camera intrinsic parameters.

presque 2 ans il y a | 0

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generate a point cloud from a given depth image-matlab Computer Vision System Toolbox
This link can help to convert RGB-D images to point cloud, provided the camera intrinsic parameters.

presque 2 ans il y a | 0

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Point Cloud from DEPTH and RGB image
This link can help to convert RGB-D images to point cloud, provided the camera intrinsic parameters.

presque 2 ans il y a | 0

Question

How to convert row-major linear indices to column-major indices?
I have a row-major linear indices [1,8, 14, 9, 4, 11, 18] from a matrix 3 x 6 (row x column). How to convert this to column-majo...

plus de 2 ans il y a | 2 réponses | 0

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Matlab R2020b freezes when closing figure (Intel macOS Big Sur)
MATLAB R2022a still freezes when the Figure window is closed on macOS 12.3.

plus de 2 ans il y a | 0

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How can I plot a voronoi diagram with a limited area?
If the Voronoi Diagram bounded region is rectangle or square, here is the link function to clip the extending edges of the Voron...

plus de 2 ans il y a | 0

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How do I find the intersection point of two lines in MATLAB 6.5 (R13)?
Here is the link to find the intersection point of two line segments/lines. A fast two line intersection point finder based on t...

plus de 2 ans il y a | 0

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How to plot 2 lines and find the coordinates of their intersection?
Here is the link to find the intersection point of two line segments/lines. A fast two line intersection point finder based on t...

plus de 2 ans il y a | 0

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How to find the point of intersection of two lines in matlab ?
Here is the link to find the intersection point of two line segments/lines. A fast two line intersection point finder based on t...

plus de 2 ans il y a | 0

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Finding intersection point of the lines
Here is the link to find the intersection point of two line segments/lines. A fast two line intersection point finder based on t...

plus de 2 ans il y a | 0

Réponse apportée
Voronoi boundaries
If the Voronoi Diagram bounded region is rectangle or square, here is the link function to clip the extending edges of the Voron...

plus de 2 ans il y a | 0

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Voronoi Diagram Boundaries with a given width
If I understand your problem correctly, are you looking to bound the Voronoi region? If so, here is the link function to clip th...

plus de 2 ans il y a | 0

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voronoi within a pre-defined area
Here is the link function to clip the extending edges of the Voronoi Diagram for rectangular or square region. Rigorously tested...

plus de 2 ans il y a | 1

Réponse apportée
Vertices of polygons in bounded voronoi diagram
Here is the link function to clip the extending edges of the Voronoi Diagram for rectangular or square region. Rigorously tested...

plus de 2 ans il y a | 0

Réponse apportée
Matlab R2020b freezes when closing figure (Intel macOS Big Sur)
Same problem macOS Monterey v12.1. MacBook Pro (15-inch, 2018), Processor: 2.9 GHz 6-Core Intel Core i9 and Memory: 32 GB 2400 M...

plus de 2 ans il y a | 0

Question

Common substring index from two string arrays
I have two string arrays a and b and I need to find the index matching the substring numbers (within string arrays). For example...

plus de 2 ans il y a | 1 réponse | 0

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réponse

Réponse apportée
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-...

presque 3 ans il y a | 2

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How to measure the curvature of object boundary?
Here this function measures the curvature and other shape properties. In addition, it displays the curvature.

presque 3 ans il y a | 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...

presque 3 ans il y a | 1 réponse | 0

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réponse

Question

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...

presque 3 ans il y a | 1 réponse | 0

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Question

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...

presque 3 ans il y a | 1 réponse | 0

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Réponse apportée
How 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. ...

presque 3 ans il y a | 0

Réponse apportée
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. ...

presque 3 ans il y a | 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...

environ 3 ans il y a | 1 réponse | 0

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Question

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...

plus de 3 ans il y a | 1 réponse | 0

1

réponse

Question

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. ...

plus de 3 ans il y a | 1 réponse | 0

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Question

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...

plus de 3 ans il y a | 1 réponse | 0

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Preetham Manjunatha

University of Southern California

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