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Akaze Flip Invariance #41

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rsumman2018 opened this issue Jan 21, 2022 · 1 comment
Open

Akaze Flip Invariance #41

rsumman2018 opened this issue Jan 21, 2022 · 1 comment

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@rsumman2018
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Is it possible to make Akaze flip invariant when using the MLDB/MLDB-Upright descriptor? If so, what is the best approach to implement this?
@nlw0
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nlw0 commented Aug 7, 2023

This doesn't sound simple. MLDB tries to attain rotation invariance by estimating an angle and rotating the image. The same approach for flip invariance would imply trying to estimate a canonical direction. A better approach might be to compute the descriptor for the original image patch and a flipped one, and pick the most similar when matching.

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@nlw0 @rsumman2018