Patents by Inventor Claus Bauer

Claus Bauer has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8626504
    Abstract: Signatures that can be used to identify video and audio content are generated from the content by generating measures of dissimilarity between features of corresponding groups of pixels in frames of video content and by generating low-resolution time-frequency representations of audio segments. The signatures are generated by applying a hash function to intermediate values derived from the measures of dissimilarity and to the low-resolution time-frequency representations. The generated signatures may be used in a variety of applications such as restoring synchronization between video and audio content streams and identifying copies of original video and audio content. The generated signatures can provide reliable identifications despite intentional and unintentional modifications to the content.
    Type: Grant
    Filed: August 30, 2012
    Date of Patent: January 7, 2014
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Regunathan Radhakrishnan, Claus Bauer, Kent Bennett Terry, Brian David Link, Hyung-Suk Kim, Eric Gsell
  • Patent number: 8595009
    Abstract: Methods and apparatuses for performing song detection on an audio signal are described. Clips of the audio signal are classified into classes comprising music. Class boundaries of music clips are detected as candidate boundaries of a first type. Combinations including non-overlapped sections are derived. Each section meets the following conditions: 1) including at least one music segment longer than a predetermined minimum song duration, 2) shorter than a predetermined maximum song duration, 3) both starting and ending with a music clip, and 4) a proportion of the music clips in each of the sections is greater than a predetermined minimum proportion. In this way, various possible song partitions in the audio signal can be obtained for investigation.
    Type: Grant
    Filed: July 26, 2012
    Date of Patent: November 26, 2013
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Lie Lu, Claus Bauer
  • Patent number: 8571255
    Abstract: Derivation of a fingerprint includes generating feature matrices based on one or more training images, generating projection matrices based on the feature matrices in a training process, and deriving a fingerprint for one or more images by, at least in part, projecting a feature matrix based on the one or more images onto the projection matrices generated in the training process.
    Type: Grant
    Filed: January 7, 2010
    Date of Patent: October 29, 2013
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Claus Bauer, Regunathan Radhakrishnan, Wenyu Jiang, Glenn N. Dickins
  • Publication number: 20130279740
    Abstract: Embodiments of identifying multimedia objects based on multimedia fingerprints are provided. Query fingerprints are derived from a multimedia object according to differing fingerprint algorithms. For each fingerprint algorithm, decisions are calculated through at least one classifier corresponding to the fingerprint algorithm based on the query fingerprint and reference fingerprints, the reference fingerprints being derived from reference multimedia objects according to the same fingerprint algorithm. Each of the decisions indicates a possibility that the query fingerprint and the reference fingerprint are not derived from the same multimedia content. For each of the reference multimedia objects, a distance is calculated as a weighted sum of the decisions relating to the reference fingerprints. The multimedia object is identified as matching the reference multimedia object with the smallest distance less than a threshold.
    Type: Application
    Filed: April 1, 2013
    Publication date: October 24, 2013
    Applicant: Dolby Laboratories Licensing Corporation
    Inventors: Claus Bauer, Lie Lu, Mingqing Hu
  • Patent number: 8542869
    Abstract: Multiple candidate feature components of media content or projection matrices (or other hash functions, e.g., non-linear projections) are identified. Each of the candidate projection matrices (or other hash functions) includes an array of coefficients that relate to the candidate features. A subgroup of the candidate features or the projection matrices (or other hash functions) are selected based at least partially on an optimized combination of at least two characteristics of the candidate features or projection matrices (or other hash functions). Media fingerprints that uniquely identify the media content are derived from the selected optimized subgroup. Optimal projection matrices (or other hash functions) may be designed. Performance or sensitivity (e.g., search time) characteristics of the fingerprints are thus balanced with robustness characteristics thereof.
    Type: Grant
    Filed: May 25, 2011
    Date of Patent: September 24, 2013
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Junfeng He, Regunathan Radhakrishnan, Claus Bauer
  • Patent number: 8488061
    Abstract: A signature that can be used to identify video content in a series of video frames is generated by first calculating the average and variance of picture elements in a low-resolution composite image that represents a temporal and spatial composite of the video content in the series of frames. The signature is generated by applying a hash function to values derived from the average and variance composite representations. The video content of a signal can be represented by a set of signatures that are generated for multiple series of frames within the signal. A set of signatures can provide reliable identifications despite intentional and unintentional modifications to the content.
    Type: Grant
    Filed: May 1, 2008
    Date of Patent: July 16, 2013
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Regunathan Radhakrishnan, Claus Bauer
  • Patent number: 8428301
    Abstract: Content identification and quality monitoring are provided. The method involves obtaining a first fingerprint derived from a first media content, processing the first media content to generate a second media content, obtaining a second fingerprint derived from the second media content, and comparing the first fingerprint and the second fingerprint to determine one or more of: a similarity between the first fingerprint and the second fingerprint that indicates that the second media content is generated from the first media content or a difference between the first fingerprint and the second fingerprint to identify a quality degradation between the first media content and the second media content.
    Type: Grant
    Filed: August 21, 2009
    Date of Patent: April 23, 2013
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Regunathan Radhakrishnan, Jeffrey Riedmiller, Claus Bauer, Wenyu Jiang
  • Patent number: 8406462
    Abstract: Deriving a fingerprint of an image corresponding to media content involves selecting at least two different regions of the same image, determining a relationship between the two regions, and deriving a fingerprint of the image based on the relationship between the two regions of the image.
    Type: Grant
    Filed: August 17, 2009
    Date of Patent: March 26, 2013
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Regunathan Radhakrishnan, Claus Bauer
  • Publication number: 20130064416
    Abstract: Signatures that can be used to identify video and audio content are generated from the content by generating measures of dissimilarity between features of corresponding groups of pixels in frames of video content and by generating low-resolution time-frequency representations of audio segments. The signatures are generated by applying a hash function to intermediate values derived from the measures of dissimilarity and to the low-resolution time-frequency representations. The generated signatures may be used in a variety of applications such as restoring synchronization between video and audio content streams and identifying copies of original video and audio content. The generated signatures can provide reliable identifications despite intentional and unintentional modifications to the content.
    Type: Application
    Filed: August 30, 2012
    Publication date: March 14, 2013
    Applicant: Dolby Laboratories Licensing Corporation
    Inventors: Regunathan Radhakrishnan, Claus Bauer, Kent Bennett Terry, Brian David Link, Hyung-Suk Kim, Eric Gsell
  • Publication number: 20130046536
    Abstract: Methods and apparatuses for performing song detection on an audio signal are described. Clips of the audio signal are classified into classes comprising music. Class boundaries of music clips are detected as candidate boundaries of a first type. Combinations including non-overlapped sections are derived. Each section meets the following conditions: 1) including at least one music segment longer than a predetermined minimum song duration, 2) shorter than a predetermined maximum song duration, 3) both starting and ending with a music clip, and 4) a proportion of the music clips in each of the sections is greater than a predetermined minimum proportion. In this way, various possible song partitions in the audio signal can be obtained for investigation.
    Type: Application
    Filed: July 26, 2012
    Publication date: February 21, 2013
    Applicant: DOLBY LABORATORIES LICENSING CORPORATION
    Inventors: Lie Lu, Claus Bauer
  • Patent number: 8351643
    Abstract: Quantized energy values are accessed to initially represent a temporally related group of content elements in a media sequence. The values are accessed over a matrix of regions into which the initial representation is partitioned. The initial representation may be downsampled and/or cropped from the content. A basis vector set is estimated in a dimensional space from the values. The initial representation is transformed into a subsequent representation, which is in another dimensional space. The subsequent representation projects the initial representation, based on the basis vectors. The subsequent representation reliably corresponds to the media content portion over a change in a geometric orientation thereof. Repeated for other media content portions of the group, subsequent representations of the first and other portions are averaged or transformed over time. The averaged/transformed values reliably correspond to the content portion over speed changes.
    Type: Grant
    Filed: October 6, 2008
    Date of Patent: January 8, 2013
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Regunathan Radhakrishnan, Claus Bauer
  • Publication number: 20120278326
    Abstract: Techniques are provided for dynamic configuration of search parameters for multimedia fingerprint databases that use weak bits. A multimedia fingerprint database, which stores reference fingerprints and uses weak bits, is maintained. Maintaining the database includes dynamically configuring one or more of the following parameters: a fingerprint length of those portions of the reference fingerprints that are used to identify multimedia objects; an index length of the index used to index those portions of the reference fingerprints that are used to identify multimedia objects; a threshold that is used to determine whether multimedia objects are correctly identified; and a number of the weak bits in the reference fingerprints.
    Type: Application
    Filed: December 9, 2010
    Publication date: November 1, 2012
    Applicant: DOLBY LABORATORIES LICENSING CORPORATION
    Inventor: Claus Bauer
  • Patent number: 8266142
    Abstract: A method for use in identifying a segment of audio and/or video information comprises obtaining a query fingerprint at each of a plurality of spaced-apart time locations in said segment, searching fingerprints in a database for a potential match for each such query fingerprint, obtaining a confidence level of a potential match to a found fingerprint in the database for each such query fingerprint, and combining the results of searching for potential matches, wherein each potential match result is weighted by respective confidence level. A confidence level may be a function of at least one or both of (1) a measure of difference between a query fingerprint and a found fingerprint and (2) the relative timing relationship between the time location of a query fingerprint and the time location of a found fingerprint.
    Type: Grant
    Filed: June 4, 2008
    Date of Patent: September 11, 2012
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Wenyu Jiang, Claus Bauer
  • Patent number: 8259806
    Abstract: Signatures that can be used to identify video and audio content are generated from the content by generating measures of dissimilarity between features of corresponding groups of pixels in frames of video content and by generating low-resolution time-frequency representations of audio segments. The signatures are generated by applying a hash function to intermediate values derived from the measures of dissimilarity and to the low-resolution time-frequency representations. The generated signatures may be used in a variety of applications such as restoring synchronization between video and audio content streams and identifying copies of original video and audio content. The generated signatures can provide reliable identifications despite intentional and unintentional modifications to the content.
    Type: Grant
    Filed: November 29, 2007
    Date of Patent: September 4, 2012
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Regunathan Radhakrishnan, Claus Bauer, Kent Bennett Terry, Brian David Link, Hyung-Suk Kim, Eric Gsell
  • Publication number: 20120215329
    Abstract: Techniques for re-associating dynamic metadata with media data are provided. A media processing system creates, with a first media processing stage, binding information comprising dynamic metadata and a time relationship between the dynamic metadata and media data. The binding information may be derived from the media data. While the first media processing stage delivers the media data to a second media processing stage in a first data path, the first media processing stage passes the binding information to the second media processing stage in a second data path. The media processing system re-associates, with the second media processing stage, the dynamic metadata and the media data using the binding information.
    Type: Application
    Filed: February 22, 2012
    Publication date: August 23, 2012
    Applicant: DOLBY LABORATORIES LICENSING CORPORATION
    Inventors: Wenyu Jiang, Regunathan Radhakrishnan, Claus Bauer
  • Publication number: 20120143679
    Abstract: A media fingerprint is derived from a portion of media content. Information is associated with the media content portion based on the derived media fingerprint. Upon linking to the associated information, the associated content is presented with the media content portion. The media fingerprint includes a unique representation of the media content portion that is derived from a characteristic component of the media content portion. The media content may comprise an original instance of content or a derivative instance of the original content.
    Type: Application
    Filed: December 30, 2011
    Publication date: June 7, 2012
    Applicant: Dolby Laboratories Licensing Corporation
    Inventors: Philip Bernosky, Claus Bauer, Jack Buser, Guido Voltolina
  • Publication number: 20120099760
    Abstract: A media fingerprint is derived from a portion of media content. Information is associated with the media content portion based on the derived media fingerprint. Upon linking to the associated information, the associated content is presented with the media content portion. The media fingerprint includes a unique representation of the media content portion that is derived from a characteristic component of the media content portion. The media content may comprise an original instance of content or a derivative instance of the original content.
    Type: Application
    Filed: December 30, 2011
    Publication date: April 26, 2012
    Applicant: Dolby Laboratories Licensing Corporation
    Inventors: Philip Bernosky, Claus Bauer, Jack Buser, Guido Voltolina
  • Publication number: 20120054194
    Abstract: Attributes are identified in media content. A classification value of the media content is computed based on the identified attributes. Thereafter, a fingerprint derived from the media content is stored or searched for based on the classification value of the media content.
    Type: Application
    Filed: May 5, 2010
    Publication date: March 1, 2012
    Applicant: DOLBY LABORATORIES LICENSING CORPORATION
    Inventors: Tianshi Gao, Regunathan Radhakrishnan, Wenyu Jiang, Claus Bauer
  • Publication number: 20110299721
    Abstract: Multiple candidate feature components of media content or projection matrices (or other hash functions, e.g., non-linear projections) are identified. Each of the candidate projection matrices (or other hash functions) includes an array of coefficients that relate to the candidate features. A subgroup of the candidate features or the projection matrices (or other hash functions) are selected based at least partially on an optimized combination of at least two characteristics of the candidate features or projection matrices (or other hash functions). Media fingerprints that uniquely identify the media content are derived from the selected optimized subgroup. Optimal projection matrices (or other hash functions) may be designed. Performance or sensitivity (e.g., search time) characteristics of the fingerprints are thus balanced with robustness characteristics thereof.
    Type: Application
    Filed: May 25, 2011
    Publication date: December 8, 2011
    Applicant: DOLBY LABORATORIES LICENSING CORPORATION
    Inventors: Junfeng He, Regunathan Radhakrishnan, Claus Bauer
  • Publication number: 20110268315
    Abstract: Derivation of a fingerprint includes generating feature matrices based on one or more training images, generating projection matrices based on the feature matrices in a training process, and deriving a fingerprint for one or more images by, at least in part, projecting a feature matrix based on the one or more images onto the projection matrices generated in the training process.
    Type: Application
    Filed: January 7, 2010
    Publication date: November 3, 2011
    Applicant: DOLBY LABORATORIES LICENSING CORPORATION
    Inventors: Claus Bauer, Regunathan Radhakrishnan, Wenyu Jiang, Glenn N. Dickins