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Ryan Comeau


Last seen: 2 years ago |  Active since 2020

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Answered
Any ideas how I can perform segmentation on this image?
Hey, i've read through the comments, might have a binarization solution for you. The imbinarize function is very elaborate, take...

4 years ago | 0

Answered
Importing pre-trained recurrent network to reinforcement learning agent
Hello, So, transfer learning does not work the same in RL as it does in DL. In DL, there are no environment physics that need t...

4 years ago | 0

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Answered
Error appears when setting the multi-dimensional actions in Matlab Environment (Reinforcement Learning Toolbox)
Hello, so I've take a look at the rocket lander code environment which MATLAB gives as an example. What they do, it that every a...

4 years ago | 0

Answered
Simple motion detector (in binary image) (Simulink)
Hello, The problem of frame to frame automous tracking that you're talking about is a interesting one. Here is a paper: http:/...

4 years ago | 0

Answered
Solving mach Zehnder interferometer using matrix
Hello, great question, haven't tackled a physics one for a while. First off, cool that you're working on interferometers, they...

4 years ago | 1

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Answered
Reinforcement Learning Toolbox Customize DQN Agent
Hello, I can see the value in what you're proposing. In some cases it would be useful to have RL agents not fail the game immed...

4 years ago | 0

Answered
How to find the inclination of the back bone in the attached image?
Hello, I am thinking the best way to do this will be analog. What i mean is just choose two sets of coordinates, compute their ...

4 years ago | 0

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Answered
How to remove excess objects from background?
Hello, So in order to to fix you problem, there is an algorithm that peforms great for background removal, which is what you pr...

4 years ago | 0

Answered
SSD Object Detector training results in NaN loss and RMSE
Hello, I do not know the exact thing which may be causing this, but if I had to bed on it, I would check all of the bounding bo...

4 years ago | 0

Answered
Problems with Reinforcement Learning Toolbox Examples
Hello, I cannot answer the first part of your question as I have not tried the waterfall grid world. I can however deal with th...

4 years ago | 0

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Answered
How can I make my neural network support any size of image input?
Hello, I wish it was possible to just dump images of multiple sizes as well. Unfortunately though each image would yield a dif...

4 years ago | 0

| accepted

Answered
semantic segmantation outputs only one class
Hello, Based on what I can see here, the semantic segmentation algorithm may not be your best choice. Maybe try using a compute...

4 years ago | 0

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Answered
Insuring reproducibility in training YOLOv2 in the Deep Learning Toolbox
Hello, What you are experiencing is very normal for deep learning. The process of network initialization involves assigning ini...

4 years ago | 0

Answered
Fill regions of a map and keep the borders
Hello, So, you'll need to change your regions to show up in white and the borders in black. This will permit us to "binarize" t...

4 years ago | 0

Answered
Loss of resolution when transforming an image with camera parameters
Hello, I am going to have a stab at this for ya. When dealing with objects in 2 dimensions, we need to deal with perspective. Re...

4 years ago | 0

Answered
Medical Image Segmentation Using SegNet
Hello, I have encountered this problem as well. It's sort of hilarious because it's a simple problem and I banged my head agains...

4 years ago | 1

Answered
Gray Matter Area and Volume Calculations
Hello, i think you're image appears to be binarized already. This means we can obtain the area well with the regionprops functio...

4 years ago | 1

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Answered
generate a 2D images into 3D plot
Hello you are looking for the surf function. https://www.mathworks.com/help/matlab/ref/surf.html image=imread('path/to/image') ...

4 years ago | 1

Answered
Intensity based image registration
Hello, I am going to provide some commentary, but not mathematics necessarily. Intensity based registration works by minimiz...

4 years ago | 0

Answered
How to manage RAM usage when running trainACFObjectDetector()
Hello, I have also had hilarious experiences with MATLAB RAM usage. I can however give a brief explanation of what is causin...

4 years ago | 0

Answered
I want to count bright spots in a region on an image. How to do it ?
Hello, another technique that will maybe work is the use of regionprops. What you could do is, have RP return the brightest valu...

4 years ago | 0

Question


"Index exceeds the number of array elements" in YoloV2ObjectDetector detect function.
After running the following code, I complete the training for the YOLOV2 and obtain the detector object. When I try to use the d...

4 years ago | 1 answer | 0

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Question


YOLO V2 with greyscale FITS images (telling me it's expecting rgb)
Hello, I am trying to train a YOLO v2 networks using a fits format of image. I have modified the 'imageDatastore' function to r...

4 years ago | 1 answer | 0

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answer