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dylancatlow
Posts: 12,244
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9/23/2013 9:31:33 AM
Posted: 3 years ago
How does she manage to fill in the space behind the objects when she moves them? Does it just average together the surroundings to create a new background or something?
Eitan_Zohar
Posts: 2,697
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9/26/2013 1:34:22 PM
Posted: 3 years ago
At 9/23/2013 9:31:33 AM, dylancatlow wrote:
How does she manage to fill in the space behind the objects when she moves them? Does it just average together the surroundings to create a new background or something?

1:10
"It is my ambition to say in ten sentences what others say in a whole book."
Floid
Posts: 751
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9/27/2013 6:51:34 AM
Posted: 3 years ago
At 9/23/2013 9:31:33 AM, dylancatlow wrote:
How does she manage to fill in the space behind the objects when she moves them? Does it just average together the surroundings to create a new background or something?

They call it a "patch match algorithm": you take a sample of the background, make some assumptions about the background continuity and try to fill in from there. For example one of the videos shows a grass background, the algorithm would sample the surrounding background and realize it all has a random pattern, it would then take a cut out of that random pattern and fill in behind where the object was. Works real good for solid backgrounds or something like grass (without really studying it you wouldn't realize the random grass pattern repeats when it shouldn't). If you pause and look at the obelisk example where there is city/fence in the background it doesn't work so good.