Content-recognition Software - Video

Recently, Time Warner and Disney partnered with YouTube to test video content-recognition software developed by Google. The software is similar to existing audio content-recognition programs in that it analyzes content to create a fingerprint. Then it compares that information to fingerprints in a database to determine if there is a match. However, video presents unique challenges that are not easily overcome.

For example, most videos on YouTube are limited to 10 minutes or 100 megabytes. Since a clip could include any 10-minute segment from a film or television show under copyright, the content-recognition software must analyze the entire original work in such a way that it can make meaningful matches from a relatively small sample clip. Google isn't saying much about how the software manages this, but it's likely that the program analyzes overlapping chunks of the original content to create multiple fingerprints.

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Analyzing video is more challenging than analyzing sound.

Video content-recognition software must be able to identify footage even if the person who uploaded the content edited it first. For example, people can fool software that matches color resolution by tweaking the color saturation in a video. Cropping a video or uploading footage of a film captured on a video camera can also fool recognition software. Some pirated films are captured on cameras set up at an angle to the screen, further complicating the identification process.