Questions tagged [sift]

For questions related to SIFT, introduced in the paper "Distinctive Image Features from Scale-Invariant Keypoints" (2004) by David G. Lowe, which stands for "Scale Invariant Feature Transform".

Filter by
Sorted by
Tagged with
0 votes
0 answers

Why does the SIFT algorithm also capture keypoints at points where there is no change in color components?

Why asking image processing in here? My question is, about image processing. I can't find stackexchange site to ask about image processing, so I asking in here. Image processing is closed at computer ...
Yang's user avatar
  • 27
0 votes
1 answer

Is it possible to train a neural network or a classifier on SIFT keypoints and descriptors?

Is it possible to train a neural network or a classifier on SIFT keypoints and descriptors? I am working on a project which involves detecting an object (a bottle of energy drink) in an image and then ...
M Zaid's user avatar
  • 3
2 votes
0 answers

What would be a reasonable option for clustering for unknown number of clusters and a lot of outliers?

I am implementing the CV detection pipeline with the use of SIFT and KNN Matcher. Image keypoints matched to the query keypoints produce the following image: The matched objects have a lot of key ...
spiridon_the_sun_rotator's user avatar
1 vote
0 answers

In SIFT, how is the coordinate system being rotated?

I need to understand how SIFT calculates the descriptors for the keypoints. Intuitively, I understand that it takes each keypoint, calculates the gradients for each pixel in a neighborhood of the ...
ThunderWiring's user avatar
1 vote
0 answers

Can I use the SIFT feature detector on data other than images?

I know how to use SIFT algorithm for images but I never use it for other kinds of data. I have tabular data (x, y, z, time) where x,y,z is the joint position along x, y, z coordinates. Now, can I ...
Swakshar Deb's user avatar