2,480 questions
Advice
0
votes
0
replies
30
views
Does random shifted artificial border harms network training?
Hello everyone I would like to request some information on best practices for training a neural network for image segmentation.
I am conflicted between two approaches lets assume i have patches of ...
- 27
Tooling
1
vote
2
replies
87
views
Segmentation of Connected Component Based on Known Primitive Template
(This is my first time posting, so feedback is welcome!)
I am working on a depth-based Vision system where I need to detect packages of a single type in such a way that I retreive:
Their center in ...
- 1
1
vote
2
answers
109
views
Remove circular white pixels after thresholding
I would like to remove the circle surrounding the retinal blood vessels to keep only the interior.
This is the source image where I applied segmentation. I want to remove the large white circle.
...
- 21
0
votes
0
answers
142
views
Pill counting using only opencv
I am trying to make a pill counting model using only opencv so far I have tried to use otsu's method of thresholding to get dynamic thresholding values but it didn't worked out, I have used Contrast ...
0
votes
1
answer
114
views
Canny detection contours and extract points from edges in Julia
I have a such task: in image find for each pore (or blob) perimeter
of contour. So, each contour I have to consider polygon (approximation) with some step value (distance between points) (for example ...
- 299
0
votes
1
answer
89
views
Detect close/open region for binary image [closed]
I have binary images, and I would like to know if a given dark (0) pixel is inside a closed region (the pixel is surrounded by a closed line of bright pixels) or open region (there is a path of dark ...
- 43
0
votes
0
answers
58
views
How to best pre-process this image so the faint cell border is the most visible?
I have tried using ImageJ/Fiji but I am not sure how to best de-noise the image. I tried using the denoise function in Fiji to no avail. I was wondering if I could get some guidance. I was informed I ...
- 47
3
votes
1
answer
541
views
Implementation of F1-score, IOU and Dice Score
This paper proposes a medical image segmentation hybrid CNN - Transformer model for segmenting organs and lesions in medical images simultaneously. Their model has two output branches, one to output ...
- 163
2
votes
1
answer
91
views
How to get an ordered list of vertices defining an island/region in a heightmap array
So I'm trying to create my own navmesh right now for fun. I've been able to construct a heightmap where each cell stores whether it's walkable(blue) or unwalkable(red).
Heightmap Visualization
What I ...
- 23
-1
votes
1
answer
47
views
Handling Absence of Color Data in 3D Mesh Neural Network Input [closed]
Context: I am using this neural network architecture developed by researchers called Dual Pyrimad Graph for a mesh segmentation task. The network expects the input to have 6 values: XYZ and RGB. I am ...
2
votes
0
answers
87
views
Fuzzy C-means : All clusters centers converge to the same point after the first centroids update
I am implementing Fuzzy C-means to work with image segmentation following the given algorithm :
However when updating the centroids (this is the first thing that I do) all clusters centers converge ...
- 103
0
votes
0
answers
29
views
binary image surface coverage calculation yields inconsistent results despite correct visual appearance
I’m working with a binary image generated from a microscopy image where I’m trying to calculate the surface coverage of stack-like structures (cells). The image visually shows these structures ...
- 1
-5
votes
2
answers
302
views
How can I segment the handwritten lines in this type of documents? [closed]
This is the document page. I want to segment the 10 handwritten lines perfectly and then crop it to save it to train my model.
What methods can I use??
I don't want to make my own model to segment ...
- 434
0
votes
1
answer
115
views
Masking in ndimage binary_closing
I have two images:
A binary outline of some structure (outline).
Some surfaces inside this structure (surface).
I want to merge those two images in a way that will leave no holes between them. To ...
- 169
0
votes
0
answers
83
views
OpenCV findContours() only draws round area around object, doesn't detect actual contour
I am trying to create an automatic instance segmentation dataset generator using Unity and OpenCV for Unity. Basically, the app takes pictures of objects at different angles and lighting situations ...
- 1