Left and right image same to viewer ; totally different to computer

Previous Slide Background was .jpg, This slide is .png

https://oxygene.sk/2011/01/how-does-chromaprint-work

Chromaprint example

https://en.wikipedia.org/wiki/Hamming_distance#/media/File:Hamming_distance_4_bit_binary.svg

Hamming Distance example

Chiariglione, L. (2012). The MPEG representation of digital media. (pp. 88). New York, NY: Springer.

Video hash sampling

Video Source


					ffmpeg -i https://archive.org/download/SMA_524/SMA_5153.mp4 \
					-i 'https://privatezero.github.io/amiapresentation2017/Resources/ballard.ogv' \
					-filter_complex signature=detectmode=full:nb_inputs=2 -f null -
					
[Parsed_signature_0 @ 0x126cc00] matching of video 0 at 581.672567 and 1 at 1.668333, 295 frames matching [Parsed_signature_0 @ 0x126cc00] whole video matching

Each ninety frame 'Rough Signature' consisting of five 'BagOfWords' sections stored in database with corresponding in/out frame numbers.


					0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  1  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  1  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  1  0  0  1  0  0  0  0  1  0  0  0  0  0  0  0  0  0 
					
searchfingerprint -i 70 -o 85 ~/Desktop/temple.mp4
Eddie Vedder results

Sample footage copyright Temple of the Dog/A&M Records

'Brewery Guy Redux'

Brewery Guy Results

April - 1700 videos, 1.7 million fingerprints. November - 3177 videos, 3.4 million fingerprints. No appreciable difference in generation/search time of around 30 seconds.

https://amiaopensource.github.io/ffmprovisr