Watermarking can insert a unique Mark into every copy of a movie, therefore an illegal copy can be traced to the original source, for example to a specific theater, or to a specific STB.įingerprinting cannot do that, it can only tell you that a certain content (for example a football game, or an Ad) is “very similar” to some original content (a football game that has been Marked, or a sample of the same Ad).
#FINGERPRINTING IOFF ZUMBUHL SERIES#
This is similar to a Police Forensic expert first extracting Fingerprints from a Crime Scene, and only then extracting Fingerprints from a series of suspects. This chip will trigger some alert during the crime.įingerprinting is based on extracting a Fingerprint from any content and comparing it to the Fingerprint of another content. This is similar to a Police Forensic expert requiring that some Chip is inserted into all Crime suspects before a crime is committed. Watermarking is based on inserting a Marker into the original content before it is released. We believe that Watermarking is better for protecting and tracing specific content, while fingerprinting is better for recognizing content as a whole. Fingerprinting has advantages in being used Ex-facto, and being more cost effective. Watermarking has advantages in precision, and capability to trace to a unique copy. Fingerprinting – Which technology is better?ĭepending on the use case. In that sense, Fingerprinting is much more sophisticated than Watermarking as it is capable of Content Recognition. Pattern Recognitionįingerprinting can be associated with some aspects of Machine Learning and automatic extraction of Patterns from the Video and Audio. In the same way that every human person has a fingerprint that is unique to that person, it is possible to reduce a few seconds of Video and Audio stream into a string that represents all the important characteristics of the original stream. This technology consists of analysing any Video or Audio content and creating a miniature fingerprint that represents the content. Watermarking can also be used for Content Detection, including Ads detection through either Video Content Detection or Audio Content Detection, although it is somewhat an “overkill” as will be explained below, and probably a Fingerprinting Technology is more indicated. It is implemented either as a “Marker” to pre-release movies, to copies of Digital Cinema, by adding a Mark to STB (to track an illegal copy back to the specific STB account), or to OTT streaming sessions. Its main uses is to avoid illegal copies, in what is called “Anti-Piracy”. The limitation of this technology is that it invariable modifies the original data that was in the Audio Video and may affect the quality of the Media itself. It is the practice of including a covert file, message, image, or video within another file, message, image, or video. Watermarking always involves some aspect of Steganography, which is a term coming from the greek words Steganos (Covered, hidden), and graphein (writing). The pattern is adaptive (based on the underlying video) so as not to create noise.
The technological principle is based on insertion of a “marker pattern” inside the video or the audio streams. This system is stable, proven, and gives excellent detection. The watermark is designed to remain with the content, regardless of how it might be transcoded, resized, downscaled or otherwise altered for distribution.
#FINGERPRINTING IOFF ZUMBUHL SERIAL NUMBER#
It is now called NexGuard, and offered by Civolution.įorensic watermarking is a process by which a unique, invisible serial number can be added to video or audio content. The most common Watermarking technology was the one proposed by Philips via Teletrax. These customers may decide to compare the two main technologies available today for that effect, Watermarking and Fingerprinting. We sometimes meet potential customers who require a content identification system.
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