Automatic Content Recognition

Audio Watermarking Watermarking The technology used in television and radio audience measurement. Watermarking consists of inserting an (audio) tag into broadcasts that is inaudible to the human ear. This tag identifies the channel airing the programme, as well as regular markers of the broadcast time. Audience meters installed in panellist homes detect these signals. Find out more offers several advantages for Audience Measurement Audience Measurement Quantitative study of the frequency of use of media. Find out more :

• high perceptual transparency of the audio watermark;
• very good robustness against audio processing processing Means any operation or set of operations which is performed on personal data or on sets of personal data, whether or not by automated means, such as collection, recording, organisation, structuring, storage, adaptation or alteration, retrieval, consultation, use, disclosure by transmission, dissemination or otherwise making available, alignment or combination, restriction, erasure or destruction Find out more in broadcast broadcast A mode of transmission whereby a transmitter sends the same audio and video stream to many receivers within a coverage area. In the context of computer networks, broadcast mode is contrasted with “multicast” and “unicast” modes, which respectively refer to the transmission of a stream to a given group of recipient devices and to a single recipient device. OR : Putting a show or a programme on television or radio. This term refers to a programme that is broadcast live as opposed to on-demand. Find out more chains;
• compatibility with environments involving ambient noise and microphone recording (as in the case of a portable Audience Meter Audience Meter A device for measuring the audience of radio or television programmes. Audience meters automatically register whenever a TV or radio is switched on or off, as well as each change of channel, and each time recorded content is played on the decoder, or catch-up / preview services are viewed. They also allow for individual audience measurement via a remote control with push buttons; each member of the household has their own button which they use to state their presence in the room. The audience meter is connected via the telephone network to a computer that collects and processes the data gathered. Find out more ).

The watermark typically carries two main pieces of information

• a unique identifier assigned to the channel channel A subset of the brand URLs that overlap with a single theme (e.g., news, e-mail, etc.); the channel audience contributes to the overall audience of the brand, which itself contributes to the overall audience of the Parent. Find out more , station, or platform being measured;
• a timestamp.

This architecture enables the reliable identification of streams and content, in both linear linear This is when a live television program is watched exactly at the time it airs, in timeshifting (control over live TV) or private delay (personal recording). Find out more and non-linear use cases:

• in Linear mode mode In statistics, the mode is the most common value. Find out more , using a temporal reference provided by the inserted timestamp;
• non-linearly, through content recognition using its identifier and relative timecode.

Fifty5Blue’s detection algorithms were natively designed to balance identification quality and robustness with compatibility for portable Audience Audience The set of listeners, viewers, or TV viewers in which each individual is equally weighted, regardless of their listening/viewing duration or frequency of contact. Find out more Meters with limited resources (CPU, memory, and power power Indicator for evaluating formats in the context of a media plan. This is the prioritisation of formats according to their target audience. Find out more ).

Fingerprinting Fingerprinting A technology used to identify audio-visual content. It involves taking a "sample" of content that has been viewed or listened to on any platform whatsoever and then comparing it against a reference database containing all the programme extracts for a channel or a catalogue of programmes. If this “sample” turns out to belong to that database, then the content from which it was sourced can be identified. Find out more algorithms generally rely on longer observation windows to improve the statistical robustness of the comparison between fingerprints (those observed by Audience Audience The set of listeners, viewers, or TV viewers in which each individual is equally weighted, regardless of their listening/viewing duration or frequency of contact. Find out more Meters and those used as references) and thereby limit false positives.

This approach is particularly well-suited for identifying content that has already been cataloged and previously referenced.

However, it has certain limitations, particularly when identifying identical live streams or situations involving rapid Channel Hopping Channel Hopping Frequently changing television channels. In the narrow sense, this change is done to avoid advertisements (in Canada, they call it “zapping”). Among the different techniques for measuring an audience, only audience monitoring can capture this phenomenon. We can distinguish Flipping (changing the channel during a show) from Switching (changing the channel during a show in order to watch a previously chosen programme). Find out more .

Like any Fingerprinting system, its performance depends heavily on the quality of the captured signal, the acoustic measurement environment, the comprehensiveness of the reference catalog, and how up-to-date that catalog is.

Identification is based on a Server Server A system composed of computer hardware and software, that makes databases or programmes available to its users. Find out more -side comparison, using a probabilistic probabilistic The term probabilistic data refers to a process of identifying an individual based on a probabilistic model rather than on an identifier considered to be “infallible” thanks to its uniqueness. Find out more approach, between the fingerprints observed by the Audience Meters and those already calculated in the reference database database All the homogeneous data collected over the course of several surveys and whose structure provides the potential for tailor-made consultations and inquiries. Find out more .

In Audience Measurement Audience Measurement Quantitative study of the frequency of use of media. Find out more , audio Watermarking Watermarking The technology used in television and radio audience measurement. Watermarking consists of inserting an (audio) tag into broadcasts that is inaudible to the human ear. This tag identifies the channel airing the programme, as well as regular markers of the broadcast time. Audience meters installed in panellist homes detect these signals. Find out more and audio Fingerprinting are not mutually exclusive: they address different and often complementary needs. Using both allows for adapting automatic content identification to the diversity of broadcast broadcast A mode of transmission whereby a transmitter sends the same audio and video stream to many receivers within a coverage area. In the context of computer networks, broadcast mode is contrasted with “multicast” and “unicast” modes, which respectively refer to the transmission of a stream to a given group of recipient devices and to a single recipient device. OR : Putting a show or a programme on television or radio. This term refers to a programme that is broadcast live as opposed to on-demand. Find out more environments, usage patterns, and measurement constraints. It is this combination of technological precision, operational robustness, and methodological integration that enables the most accurate tracking tracking Activity which aims to measure the profile of a visitor to a website, their browsing path, interests, origin in the network, etc., in order to tailor content to them. Find out more of content actually consumed.