Quote:
Originally Posted by Allison
Here are some images I was given permission representing the technical components a bit more.
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Thanks Allison, that clarifies alot.
Can you please also ask them to post some specs about the accuracy of their method. What I'm interested to know is outlined in the list of questions below:
1. What is the average discover rate for this tech in most of the standard cases? I mean, out of 100 videos that were posted at tubes more or less as is, without big changes such as half screen logo and recompressed at standard 400-700kb/s, how many will be found?
2. What is the lowest bitrate threshold for videos to still be recognizeable by this tech? 200kb/s, 100kb/s? Basically, the question is how badly a tube needs to recompress a video to fly under the radar unnoticed.
3. Will videos be still identifiable by this tech if they were distorted? It is not uncommon for many of the tube uploaders to take a 16:9 HD video, add their own watermark and then reencode it to a 4:3 SD video (I'll post some screenshots later of this happening).
4. Will videos be still identifiable by this tech if they were BOTH cropped AND distorted. It is happening often with our HD vids - some uploader crops out about 150 pixels from both left and right to remove logos, then adds his own watermark and reencodes it to a 4:3 SD video. The resulting video looks shitty, but it is still somehow passable for many tubes and they accept his uploads. And it is both cropped and distorted, so it's DNA signature must be very different from the original one.
5. What % of the image should be rewatermarked/changed to avoid detection? I've seen videos where the new logos/ads added by thieves were pretty much half screen. Can this tech still deal with those?
6. If an HD (16:9) video was resized to a SD (4:3) video by using color bars full of ads, can this tech still deal with those? It is pretty much widespread nowadays for tube uploaders do downsize a 1280x720 HD vid to a 640x360 piece and embed it into a 640x480 template and then use the remaining space to add lots of promo - they do that because at most tubes their flash players are still SD. Those ads are not simple color bars that are easily identifiable. It is most often a colored text, but sometimes full color images too.