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That's quite an insight! Actually the authors of the seam carving paper went on to do just that [0]. From the abstract: "We present video retargeting using an
by andersource 5y ago
That's quite an insight!
Actually the authors of the seam carving paper went on to do just that [0]. From the abstract: "We present video retargeting using an improved seam carving operator. Instead of removing 1D seams from 2D images we remove 2D seam manifolds from 3D space-time volumes. To achieve this we replace the dynamic programming method of seam carving with graph cuts that are suitable for 3D volumes."
[0] https://faculty.idc.ac.il/arik/SCWeb/vidret/index.html https://faculty.idc.ac.il/arik/SCWeb/vidret/index.html
- rijoja 5y agoInteresting.
- crazygringo 5y agoSon of a gun, this is why I love HN. Thank you! And it turns out the results are shockingly good, far better than I expected. They have demo videos at: https://faculty.idc.ac.il/arik/SCWeb/vidret/results/video_results.html https://faculty.idc.ac.il/arik/SCWeb/vidret/results/video_re... My favorite is: Original: https://faculty.idc.ac.il/arik/SCWeb/vidret/results/videos/waterski.mov https://faculty.idc.ac.il/arik/SCWeb/vidret/results/videos/w... Narrowed: https://faculty.idc.ac.il/arik/SCWeb/vidret/results/videos/waterski_retarget.mov https://faculty.idc.ac.il/arik/SCWeb/vidret/results/videos/w... Widened: https://faculty.idc.ac.il/arik/SCWeb/vidret/results/videos/waterski_expanded_retarget.mov https://faculty.idc.ac.il/arik/SCWeb/vidret/results/videos/w... Just wow.
- andersource 5y agoGladly! And yeah, the results really are quite good. This is why I like optimization problems - if you can formally capture what you want as an objective, and if you can find a way to optimize it, you can get surprisingly good results. Of course these are two very big IFs...