inselberg
inselberg

Reputation: 959

Comparing multiple videos

Is there a (fast) way to compare different videos files, in order to find identical sequences, without comparing 2 videos frame by frame?

Or is the build-a-hash-of-each-frame-and-compare-it-with-other-hashs-way the only possible solution?

Upvotes: 1

Views: 259

Answers (1)

johan d
johan d

Reputation: 2863

The fisrt step is to compare metadata. If the aspect ratio and the length of the video are very different, there is no need to run a heavy process to conclude that the videos are different.

Then, you may build a kind of hash from existing, rapid functions ( in ffmpeg I guess) I think of comparing the scene-change timestamps. (result from a "Scene Change Detection Algorithm"

you can process each file, until difference > epsilon . You have to define and compute 'difference' (delta in change number ? in timestamps delay ?...) and epsilon...

My answer is not very clear, but It one way I can think of. Yet, I hope it helps...

Upvotes: 1

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