Abstract:
Methods, devices and computer program products allow improved detection of watermarks into and from a multimedia content. One method for detecting watermarks from a host content includes performing watermark extraction to obtain a first sequence of watermark symbols from the host content and generating a plurality of predicted watermark templates. Each template corresponds to a sequence of watermark symbols that is predicted based on the first sequence of watermark symbols. A section of the host content is processed to obtain a candidate sequence of watermark symbols and correlation operations between the candidate sequence of watermark symbols and symbols of the predicted watermark templates are performed until a correlation result that is indicative of a successful watermark detection is obtained. An indication that the candidate sequence of watermark symbols represents at least a portion of a reliably extracted watermark message can then be produced.
Abstract:
Methods, devices, and computer program products are provided to enhance viewing of an entertainment content in the presence of advertisements. At a compliant device, an indication is received that the entertainment content is associated with a content policy information relating to presentation of advertisements during, or prior to, presentation of the entertainment content. A further indication is received that the entertainment content is associated with an advertisement award program. An advertisement award program message provides that the advertisements may be presented in a modified form in exchange for a specific number of award points. Upon receiving an indication agreeing to such an exchange, advertisements are allowed to be presented in a modified form. The content policy information can be ascertained through extraction of watermarks embedded in the advertisements or the entertainment content and/or through computation and matching of fingerprints associated with the advertisements or the entertainment content.
Abstract:
Systems, devices, methods and computer program products improve various aspects of a content management system. In one scenario, one or more contents are accessed at a content handling device. The content handling device is configured to operate using multiple abstraction layers including an application layer, an operating system layer, a firmware layer and a hardware layer. Content management operations are conducted on the one or more contents using at least two abstraction layers. Such content management operations include conducting watermark extraction and content screening operations at a first layer for a first watermark message having a first value, conducting watermark extraction and content screening operations at a second layer for a second watermark message having a second value, and initiating one or more enforcement actions corresponding to the first value and the second value based at least in-part on respective results of the content screening.
Abstract:
Methods, devices and computer program products facilitate enhanced use and interaction with a multimedia content through the use of tags. While a content is being presented by a device, a content identifier and at least one time code associated with one or more content segments are obtained. One or both of the content identifier and the time code can be obtained from watermarks that are embedded in the content, or through computation of fingerprints that are subsequently matched against a database of stored fingerprints and metadata. The content identifier and the at least one time code are transmitted to a tag server. In response, tag information for the one or more content segments is received and one or more tags are presented to a user. The tags are persistently associated with temporal locations of the content segments.
Abstract:
The disclosed technology relates to methods, devices, systems and computer program products that facilitate access to metadata associated with a content. In one example, a method is described that includes receiving a multimedia content at a receiver device, extracting a watermark message from a first segment of the multimedia content, using at least a portion of the first watermark message to obtain additional information regarding the first segment of the multimedia content that includes the first watermark message, and associating and storing one or more values of the first watermark message and the additional information. The method further includes repeating the above operations to extract additional watermark messages from additional segments of the content and to form a table or array of items that can be accessed by specifying the one or more values of the first watermark message or one or more values of the additional watermark messages.
Abstract:
Methods, devices and computer program products facilitate enhanced use and interaction with a multimedia content through the use of tags. While a content is being presented by a device, a content identifier and at least one time code associated with one or more content segments are obtained. One or both of the content identifier and the time code can be obtained from watermarks that are embedded in the content, or through computation of fingerprints that are subsequently matched against a database of stored fingerprints and metadata. The content identifier and the at least one time code are transmitted to a tag server. In response, tag information for the one or more content segments is received and one or more tags are presented to a user. The tags are persistently associated with temporal locations of the content segments.
Abstract:
The disclosed technology relates to methods, devices, systems and computer program products that facilitate access to meta-data associated with a content. In one example, a method is described that includes receiving a multimedia content at a receiver device, extracting a watermark message from a first segment of the multimedia content, using at least a portion of the first watermark message to obtain additional information regarding the first segment of the multimedia content that includes the first watermark message, and associating and storing one or more values of the first watermark message and the additional information. The method further includes repeating the above operations to extract additional watermark messages from additional segments of the content and to form a table or array of items that can be accessed by specifying the one or more values of the first watermark message or one or more values of the additional watermark messages.
Abstract:
Methods, devices, systems and computer program products facilitate accessing metadata associated with a primary audio visual content. Upon reception of a primary content, one or more watermark messages are extracted from the primary content obtain a server code and an interval code. A query to a metadata server is initiated based on the information obtained from the extracted watermark messages. In response to the query, service recovery information is received that includes information identifying one or more timed events, where each timed event identifies an operation to be performed at a corresponding instance in time as the primary content is being presented by the receiver device. One or more operations identified the timed events are initiated at the corresponding instance(s) in time.
Abstract:
Methods, systems and devices enable enhanced delivery of metadata, as well as auxiliary programs and services associated with a primary content. In one method, a primary content with pre-existing watermarks is received at a content distributor device. The pre-existing watermark include specific fields that allow retrieval of a first metadata. The values and boundary locations of the symbols of the pre-existing watermark messages are determined, and symbols of a new watermark message are embedded in the primary content to render the pre-existing watermarks undetectable. The new watermark message includes symbol values that different from those in the pre-existing watermark messages and enable retrieval of a second metadata. Upon transmission of the primary content to a client device, detection of the new watermark message, and initiation of a request by the client device, access to the first or the metadata, as well as associated programs or services, are enabled.
Abstract:
The disclosed embodiments relate to automatic content recognition and recovery of metadata associated with multimedia content. Embodiments include the use of audio watermarks, video watermarks or both to recover metadata. Embodiments also describe improved video watermark embedding techniques including quantization-based video watermarking in the spatial domain and quantization-based video watermarking in frequency domain, as well as improved video watermark detection techniques based on multiple video frames. Embodiments also include improvements to payload structure and improvements to payload recovery.