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First time post here! I'm having difficulty in trying to feature match with the attached images. Generally I've been successful with other images with SIFT. The relevant code is below. You can see the ...
user28464077's user avatar
  • 41
1 vote
0 answers
50 views

I am working on a signature authentication problem, using SIFT for the feature extraction. However my problem lies in evaluating the algorithm; for example I accept real signatures to show high ...
Daniel Adejumobi's user avatar
  • 11
1 vote
1 answer
209 views

I am trying to take a wallpaper sample with repeating features and generalize the pattern on a larger canvas, by using ORB or SIFT feature matching to basically map the sample onto the edges of itself ...
redmaple's user avatar
  • 11
0 votes
0 answers
187 views

I am trying to build opencv-python per the official instructions with support for CUDA so I can run SIFT. When I try to build with pip wheel . --verbose I get: -- Configuring incomplete, errors ...
Grant Curell's user avatar
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125 views

I am currently going through the OpenCV documentation for SIFT, and arrived on this function in the create portion of SIFT. enable_precise_upscale: Whether to enable precise upscaling in the scale ...
Hana's user avatar
  • 9
1 vote
0 answers
146 views

I have a set of satellite images (which I'm going to index using SIFT) and there are also images from another source (drone) I extract the features from image made by the drone and try to find similar ...
Vitaly's user avatar
  • 31
0 votes
1 answer
99 views

This is for learning purposes( Priority is correctness first, and I am aware of the inefficiences obvious and not so obvious in the impln but first I would like to get the correctness aspect and later ...
Pawan Nirpal's user avatar
  • 658
0 votes
0 answers
644 views

I try to match a pattern of seven dots similar to letter H on template image with similar pattern which could be found on actual image. Currently SIFT is correctly recognising 2 of 7 dots and after ...
Zajcon's user avatar
  • 1
0 votes
0 answers
295 views

I am trying to register two 16bit images. One is a .dcm CT series and the other is TIFF image. Both are uint16 type and while running SIFT I get this error: cv2.error: OpenCV(4.8.0) D:\a\opencv-...
Tellun's user avatar
  • 1
0 votes
0 answers
86 views

I have a task where I need to track a motorbike in a set of frames from a video. I have already used SIFT features to compare each frame with the motorbike object, but I need another technique to ...
Pol's user avatar
  • 13
0 votes
0 answers
36 views

I'm not in informatic or mathematic fields. I'm studying using python, and jupyter notebooks. Versions : version de python installée : 3.10.9 | packaged by Anaconda, Inc. | (main, Mar 1 2023, 18:18:...
Dvd's user avatar
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0 answers
290 views

I have successfully implemented OpenCV's SIFT class as well as KNN seperatly, however now my task is to classify images using both SIFT features and KNN. being that the SIFT features are not images ...
cvstudent's user avatar
  • 15
0 votes
1 answer
275 views

Based on sources such as this it seems the only way people are using SIFT is with the library #include <opencv2/nonfree/features2d.hpp> which I am not able to use. Im not finding any sources ...
cvstudent's user avatar
  • 15
0 votes
1 answer
1k views

When reading about classic computer vision I am confused on how multiscale feature matching works. Suppose we use an image pyramid, How do you deal with the same feature being detected at multiple ...
FourierFlux's user avatar
  • 601
1 vote
1 answer
488 views

A similar question has been asked here. However I could not understand it clearly. I understand that SIFT computation has the following steps: Finding scale space extrema Keypoint localization(and ...
user27665's user avatar
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