All Questions
Tagged with computer-vision algorithms
23
questions
17
votes
3
answers
7k
views
Contours matching - finding contours displacement
I found contours on two images with same object and I want to find displacement and rotation of this object. I've tried with rotated bounding boxes of this contours and then its angles and center ...
- 317
15
votes
1
answer
6k
views
Binary robust independent elementary features ("BRIEF") understanding
How are the descriptors in the BRIEF algorithm matched to each other?
How is the template image found in the another image? How do we compare the descriptors?
I have read that article but didn't ...
- 461
12
votes
4
answers
344
views
Any references for the trade-off between software and mechanics/optics in industrial machine vision systems?
I explain my question with a simplified example.
I can design an industrial vision system for the automatic inspection of an item with these main requirements:
the image of a good piece must be a ...
7
votes
2
answers
746
views
Convex Optimization in Signal and Image Processing
In signal processing, convex optimization plays a useful role in problems such as sparse signal recovery and filter design. What other places does convex optimization appear?
For example, in ...
- 148
7
votes
1
answer
1k
views
Skel to infinity morphological operations on 3D volume
I have a 3D volume image that consists of 2D tomographic images. In MatLab, for 2D images, we can use bwmorph and call for 'skel' operation to infinity to get a pixel thick overall outline of the ...
- 837
4
votes
2
answers
164
views
Struggling to find a good definiton for Gabor-Descriptor
I am attempting to implement the Gabor Descriptor based on the following paper Image Copy Detection Using a Robust Gabor Texture Descriptor. It is the best paper that I have found on the subject. It ...
- 275
4
votes
2
answers
989
views
Qualitative Evaluation of Interest-Point-Detectors and Descriptors in Computer Vision
I'm writing on a qualitative evaluation study of interest-point-detectors and descriptors. I've read all Mikolajczyk papers as well as most of the surves from Datta et al. etc. Now I'm implementing an ...
- 231
3
votes
1
answer
2k
views
Barcode localization in difficult environments
I'm creating a program for localizing types of barcodes.
(I know plenty exist, that's not the question :) )
I'm focusing for the time being on 1D barcodes.
The difficulty I have is that the barcodes ...
- 67
2
votes
1
answer
641
views
Safe Point Thinning Algorithm - How to?
I am relatively new to image processing and am working on a project that requires the thinning of binary images. In the literature, I've seen references to the Safe Point Thinning Algorithm(SPTA) ...
- 121
2
votes
0
answers
117
views
Phong Reflection Model Parameters
Question: Can anyone refer me the Phong reflection model parameters for a face image taken for web-cam?
Details:
I am doing 3D reconstruction of 2D images using 3D Morphable Model as in this paper ...
- 365
1
vote
1
answer
1k
views
is it possible to matching b / w images without feature extraction steps? if possible which algorithm may be more suitable?
these are example of my image
i have a 245 images similar to it ,i obtained these b/w images after preprocessing stage , i want to use them for recognition persons(not verification) in matlab. can i ...
- 171
1
vote
1
answer
418
views
Problem with "Topological Structural Analysis of Digitized Binary Images by Border Following" by Suzuki Abe
I have a Problem with the Paper "Topological Structural Analysis of Digitized Binary Images by Border Following" by Suzuki and Abe.
In the Chapter "Appendix I: The Formal Description of ...
- 11
1
vote
1
answer
334
views
Image processing research areas using GPU [closed]
I'm an undergraduate student and I am currently trying to find suitable topic for my bachelor thesis. The broader topic I've selected is "Image processing on GPU", so basically I'll be developing ...
- 111
1
vote
1
answer
412
views
Computer Vision/Image Processing Riddles [closed]
I know this topic is not clearly relevant to the forum, but I think it's fun and interesting.
I'm looking for computer vision riddles - fun and interesting questions that have a clear and precise ...
- 141
1
vote
1
answer
625
views
I have some questions about background subtraction with Gaussian Mixture Model (GMM)
I'm learning about Gaussian Mixture Model (GMM) for background subtraction.. And have some questions about it..
In Chris Stauffer paper "Adaptive background mixture models for real-time tracking" ...
- 35