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cvlab-epfl / tf-lift

Tensorflow port of LIFT (ECCV 2016), with training code.
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I wonder a question: why LIFT performs so better than SIFT? #49

Closed ZeroSteven618 closed 4 years ago

ZeroSteven618 commented 4 years ago

Excuse me, I am sorry to bother you with the theoretical question.

During the LIFT pipeline, you got 4 patches based on VSFM, which is the patches samples label tool. The VSFM performs reconstruction with SIFT.

I an not sure about: Why the SIFT based training data can work so better than SIFT? Also better than the state-of-the-art methods.

Is it from the score map in KP part network?

kmyi commented 4 years ago

Multiple things. But in a nutshell, since the network learns which points are best statistically from large data.