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microsoft / RepPoints

Represent Visual Objects by Point Sets
MIT License
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Why you assign the gt boxes to point sets by knn instead of by center? #4

Closed MendelXu closed 5 years ago

MendelXu commented 5 years ago

Nice job. I'm reading the code for more details and I find it is mentioned in the paper that" the projection of this ground-truth object’s center point locate within this feature map bin" . However in this line, it said that a point set should be attached with a gt box which is its nearest gt box and the point set is in this gt box's k nearest neighbors. Doesn't this mean any prediction around the center point of a gt box and in its k nearest neighbors will be positive? https://github.com/microsoft/RepPoints/blob/cac17da18b54c800db1565cf39a2723f6755b96c/src/reppoints_assigner/point_assigner.py#L32 Sincerely thanks if you cloud reply to me.

yangze0930 commented 5 years ago

Thanks for your interests! In fact, the situation where k=1 in knn assignment is equivalent to using center point assignment.