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A comment on Google: YouTube is so overloaded staff cannot filter content. Parent comment

Re:Google: YouTube is so overloaded staff cannot filter content by tedunangst on Wednesday January 28, 2015 @03:42PM (#8962438)
I'm surprised whatever feature detection they use isn't robust against trivial changes like that. Rotation, flipping, and scaling/cropping should all result in the same hash.
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Re:Google: YouTube is so overloaded staff cannot filter content by viewer5 on Wednesday January 28, 2015 @03:52PM (#8962482)
We only brushed over how hashes work in college, so I may be totally ignorant, but-- wouldn't rearranging the order of the data (rotate, flip, etc) necessarily change the resulting hash?
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Re:Google: YouTube is so overloaded staff cannot filter content by icebraining on Wednesday January 28, 2015 @04:19PM (#8962604)
They don't use those hashes, they use content fingerprinting: http://en.m.wikipedia.org/wiki/Digital_video_fingerprinting
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