NEC: a system for detecting illegal video upload

[Glenny]

In a press release, the Japanese manufacturer NEC announced that it established a system to detect in seconds whether a video posted online by a user is protected by intellectual property rights.

To do this, NEC has a database of videos signed using a certificate, several signatures are generated by the content of the video itself. NEC says that a video impaired, for example with sub-titles, always present enough in common with the original protected one's. Furthermore, this detection would be done in just seconds.

A signature is generated for each image clip based on the brightness, contrast of colors and different shapes on the screen. For now this might prove particularly effective because the detection process would work in 96% of cases with an error rate of 0.0005%.

Insofar as a signature is generated for each image, the technology would be equally effective for small clips from a few minutes as they shared on community platforms. The company said its system is compatible with conventional PCs. Thus, a traditional single-core machine running at 3GHz would be capable of analyzing 1,000 hours of video ... 1 second.

With this technology, NEC will soon compete with YouTube which presented a filtering system similar in January 2009 called Content manager.

[abishek]

After youtube and company implement such technology to track video content, that 's not science fiction, clearly. For errors, it must be "false positives". From what I understand, the remaining 4% is when the application can not tell if the content is illegal.

[JonathanD]

The 4% is the rate of detection: the program does not recognize the video when she was in the database to block videos.
The margin of error is 0.005% when the program issues an alert for a video that should not block.