The patent on SIFT expired yesterday

Re:The patent on SIFT expired yesterday by Rochetshipz on Monday March 09, 2020 @03:24AM (#22523583)

Mhhhhh, I'm a researcher in the field and I'd say it's a mostly inaccurate statement. The root-SIFT detectors and descriptors are still really good. If you try to match images in different conditions (day/night), then CNN based approaches are OK.

Which one were you thinking about?

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Re:The patent on SIFT expired yesterday by johntiger1 on Monday March 09, 2020 @05:21AM (#22524067)

I would argue more that SIFT was valuable in introducing a new paradigm of feature extraction/matching. It is a staple of many computer vision courses. But yes the main algorithm I'm sure is quite (practically) performant as well

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