Features Detection with AKAZE for small images, the dimension of the unanalyzed boundary

asked 2019-10-21 23:07:58 -0500

JoeZhou gravatar image

Hello All,

I'm new to OpenCV Answers community.

Situation: Using the AKAZE to find the key points of a given gray scale image(Dimension 120 x 43), 0 key points were detected. Then I am doing a test with add black margin on each direction

Trails" add margin on each side of the original image and then do the AKAZE detections. Finding as followed:

Original Detected Keypoints: 0 image description

Margin 10, Detected points 3: image description

Margin 15, Detected points 6: image description

Margin 20, Detected points 15: image description

We can see there is a trend, more key points were detected when increase the margin.

Question For the AKAZE, is there any limitation for the image size?

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Comments

1

read the paper, and find out, which patchsize is used for AKAZE ?

https://github.com/opencv/opencv/blob...

berak gravatar imageberak ( 2019-10-22 00:54:43 -0500 )edit

Thanks for your advise.

JoeZhou gravatar imageJoeZhou ( 2019-10-27 19:30:46 -0500 )edit