An opposition to LOCUS
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An opposition to LOCUS David Lee
description
An opposition to LOCUS. David Lee. Unsupervised? Poor dataset and How to take advantage of it with top-down generative approach. Unsupervised?. Images themselves are already a crude segmentation Assumptions (Tell the system that…) There exists one horse, facing left, - PowerPoint PPT Presentation
Transcript of An opposition to LOCUS
An opposition to LOCUS
David Lee
Unsupervised?
Poor dataset
and
How to take advantage of it with top-down generative approach
Unsupervised?
Images themselves are already a crude segmentation
Assumptions (Tell the system that…) There exists one horse, facing left, occupying 15-30% of the image, centered (although authors claim they’re not), strong edge between foreground & background small color/texture variance within foreground
Weizmann horses & Caltech 101 !!
Mean of Canny edges
Mean of hand-labeled mask
Top-down generative approach When the data has strong constraints,
take advantage of that high level prior knowledge.
If you know what the data is like, let the generative model be it.
My Universal Horse Segmentation
MUHS 70%
My Universal Horse Segmentation
0.536240 0.880552 0.4939960.708324 0.718089 0.5303420.802334 0.545985 0.470904
