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@chrert chrert commented Sep 4, 2017

This PR implements the annotation format introduced in https://arxiv.org/abs/1708.02750v1.

Users are asked to annotate the 4 extremal points (left, right, top, and bottom-most) of an object. The authors of the paper claim, that this is a more natural way of defining bounding-boxes of objects.

Implementation remarks:

  • the clicking order does not matter
  • it's not possible to move the whole box. Instead one can drag the single points with right button move.

chrert added 2 commits August 31, 2017 14:55
This first implementation still only produces a standard
RectImtem. A better implementation would come with a custom Item
that also handles the extreme points.
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