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公开(公告)号：US20190387273A1
公开(公告)日：2019-12-19
申请号：US16441956
申请日：2019-06-14
Applicant: Gracenote, Inc.
Inventor： Mihailo M. Stojancic , Sunil Suresh Kulkarni , Shashank Merchant , Jose Pio Pereira , Oleksiy Bolgarov
IPC: H04N21/439 , H04N1/32 , H04N21/8352 , G10H1/00 , H04N21/414 , H04N21/422 , H04N21/4223 , H04N21/433 , H04N21/84 , H04N21/845
Abstract: A mobile device responds in real time to media content presented on a media device, such as a television. The mobile device captures temporal fragments of audio-video content on its microphone, camera, or both and generates corresponding audio-video query fingerprints. The query fingerprints are transmitted to a search server located remotely or used with a search function on the mobile device for content search and identification. Audio features are extracted and audio signal global onset detection is used for input audio frame alignment. Additional audio feature signatures are generated from local audio frame onsets, audio frame frequency domain entropy, and maximum change in the spectral coefficients. Video frames are analyzed to find a television screen in the frames, and a detected active television quadrilateral is used to generate video fingerprints to be combined with audio fingerprints for more reliable content identification.
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公开(公告)号：US20190384786A1
公开(公告)日：2019-12-19
申请号：US16553658
申请日：2019-08-28
Applicant: Gracenote, Inc.
Inventor： Prashant Ramanathan , Jose Pio Pereira , Shashank Merchant , Mihailo M. Stojancic
IPC: G06F16/48 , G06K9/46 , G06K9/00 , G06F16/901 , G06F16/783 , G06F16/22 , G06F16/951 , G06F16/28 , G06F16/41
Abstract: The overall architecture and details of a scalable video fingerprinting and identification system that is robust with respect to many classes of video distortions is described. In this system, a fingerprint for a piece of multimedia content is composed of a number of compact signatures, along with traversal hash signatures and associated metadata. Numerical descriptors are generated for features found in a multimedia clip, signatures are generated from these descriptors, and a reference signature database is constructed from these signatures. Query signatures are also generated for a query multimedia clip. These query signatures are searched against the reference database using a fast similarity search procedure, to produce a candidate list of matching signatures. This candidate list is further analyzed to find the most likely reference matches. Signature correlation is performed between the likely reference matches and the query clip to improve detection accuracy.
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公开(公告)号：US10402443B2
公开(公告)日：2019-09-03
申请号：US15265002
申请日：2016-09-14
Applicant: Gracenote, Inc.
Inventor： Prashant Ramanathan , Jose Pio Pereira , Shashank Merchant , Mihailo M. Stojancic
IPC: G06F16/00 , G06F16/48 , G06F16/41 , G06F16/28 , G06F16/783 , G06F16/951 , G06F16/22 , G06F16/901 , G06K9/00 , G06K9/46
Abstract: The overall architecture and details of a scalable video fingerprinting and identification system that is robust with respect to many classes of video distortions is described. In this system, a fingerprint for a piece of multimedia content is composed of a number of compact signatures, along with traversal hash signatures and associated metadata. Numerical descriptors are generated for features found in a multimedia clip, signatures are generated from these descriptors, and a reference signature database is constructed from these signatures. Query signatures are also generated for a query multimedia clip. These query signatures are searched against the reference database using a fast similarity search procedure, to produce a candidate list of matching signatures. This candidate list is further analyzed to find the most likely reference matches. Signature correlation is performed between the likely reference matches and the query clip to improve detection accuracy.
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公开(公告)号：US20190228030A1
公开(公告)日：2019-07-25
申请号：US16367921
申请日：2019-03-28
Applicant: Gracenote, Inc.
Inventor： Prashant Ramanathan , Jose Pio Pereira , Shashank Merchant , Mihailo M. Stojancic
IPC: G06F16/48 , G06F16/901 , G06F16/783 , G06F16/22 , G06F16/951 , G06K9/00 , G06F16/28 , G06F16/41 , G06K9/46
Abstract: The overall architecture and details of a scalable video fingerprinting and identification system that is robust with respect to many classes of video distortions is described. In this system, a fingerprint for a piece of multimedia content is composed of a number of compact signatures, along with traversal hash signatures and associated metadata. Numerical descriptors are generated for features found in a multimedia clip, signatures are generated from these descriptors, and a reference signature database is constructed from these signatures. Query signatures are also generated for a query multimedia clip. These query signatures are searched against the reference database using a fast similarity search procedure, to produce a candidate list of matching signatures. This candidate list is further analyzed to find the most likely reference matches. Signature correlation is performed between the likely reference matches and the query clip to improve detection accuracy.
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25.发明授权公开(公告)号：US11543729B2
公开(公告)日：2023-01-03
申请号：US16658833
申请日：2019-10-21
Applicant: Gracenote, Inc.
Inventor： Markus Kurt Cremer , Shashank Merchant , Aneesh Vartakavi
Abstract: Example systems and methods to transform events and/or mood associated with playing media into lighting effects are disclosed herein. An example apparatus includes a content identifier to identify a first event occurring during presentation of media content at a first time. The example apparatus includes a content driven analyzer to determine a first lighting effect to be produced by a light-producing device based on the first event and instruct the light-producing device to produce the first lighting effect based on the first event during presentation of the media content. The content identifier is to identify a second media event occurring during presentation of the media content at a second time after the first time. The content driven analyzer is to instruct the light-producing device to one of maintain the first lighting effect based on the second event or produce a second lighting effect based on the second event during presentation of the media content.
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Patent Agency Ranking
公开(公告)号：US10827224B2
公开(公告)日：2020-11-03
申请号：US16181978
申请日：2018-11-06
Applicant: Gracenote, Inc.
Inventor： Kurt R. Thielen , Shashank Merchant , Peter Dunker , Markus K. Cremer , Chungwon Seo , Seunghyeong Lee , Steven D. Scherf
IPC: H04N21/472 , H04N9/87 , H04N21/44 , H04N21/81 , H04N21/431
Abstract: In one aspect, an example method includes (i) providing, by a playback device, replacement media content for display; (ii) determining, by the playback device that while the playback device is displaying the replacement media content a remote control transmitted an instruction to a media device that provides media content to the playback device; (iii) determining, by the playback device, a playback-modification action corresponding to the instruction and the media device; and (iv) modifying, by the playback device, playback of the replacement media content in accordance with the playback-modification action.
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27.发明申请公开(公告)号：US20200162049A1
公开(公告)日：2020-05-21
申请号：US16684510
申请日：2019-11-14
Applicant: Gracenote, Inc.
Inventor： Markus K. Cremer , Shashank Merchant , Robert Coover , Todd J. Hodges , Joshua Ernest Morris
IPC: H03G3/30 , H04N21/439 , H04N21/81 , H03G3/24
Abstract: In one aspect, an example method includes (i) determining, by a playback device, a loudness level of first media content that the playback device is receiving from a first source; (ii) comparing, by the playback device, the determined loudness level of the first media content with a reference loudness level indicated by a loudness level profile for the first media content; (iii) determining, by the playback device, a target volume level for the playback device based on a difference between the determined loudness level of the first media content and the reference loudness level; and (iv) while the playback device presents second media content from a second source in place of the first media content, adjusting, by the playback device, a volume of the playback device toward the target volume level.
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公开(公告)号：US20200162048A1
公开(公告)日：2020-05-21
申请号：US16684514
申请日：2019-11-14
Applicant: Gracenote, Inc.
Inventor： Markus K. Cremer , Shashank Merchant , Robert Coover , Todd J. Hodges , Joshua Ernest Morris
Abstract: In one aspect, an example method includes (i) determining, by a playback device, a first loudness level of a first portion of first media content from a first source while the playback device presents the first media content, with the first portion having a first length; (ii) switching, by the playback device, from presenting the first media content from the first source to presenting second media content from a second source; (iii) based on the switching, determining, by the playback device, second loudness levels of second portions of the first media content while the playback device presents the second media content, with the second portions having a second length that is shorter than the first length; and (iv) while the playback device presents the second media content, adjusting, by the playback device, a volume of the playback device based on one or more of the second loudness levels.
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公开(公告)号：US20200004779A1
公开(公告)日：2020-01-02
申请号：US16442006
申请日：2019-06-14
Applicant: Gracenote, Inc.
Inventor： Jose Pio Piereira , Mihailo M. Stojancic , Shashank Merchant
IPC: G06F16/783 , G06F16/71 , G06F16/901 , G06K9/00 , G06T7/11 , G06T7/12 , G06T7/162 , G06T7/10
Abstract: A multi-dimensional database and indexes and operations on the multi-dimensional database are described which include video search applications or other similar sequence or structure searches. Traversal indexes utilize highly discriminative information about images and video sequences or about object shapes. Global and local signatures around keypoints are used for compact and robust retrieval and discriminative information content of images or video sequences of interest. For other objects or structures relevant signature of pattern or structure are used for traversal indexes. Traversal indexes are stored in leaf nodes along with distance measures and occurrence of similar images in the database. During a sequence query, correlation scores are calculated for single frame, for frame sequence, and video clips, or for other objects or structures.
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30.发明授权公开(公告)号：US10451952B2
公开(公告)日：2019-10-22
申请号：US16161830
申请日：2018-10-16
Applicant: Gracenote, Inc.
Inventor： Markus Kurt Cremer , Shashank Merchant , Aneesh Vartakavi
Abstract: Example systems and methods to transform events and/or mood associated with playing media into lighting effects are disclosed herein. An example apparatus includes a content identifier to identify a first event occurring during presentation of media content at a first time. The example apparatus includes a content driven analyzer to determine a first lighting effect to be produced by a light-producing device based on the first event and instruct the light-producing device to produce the first lighting effect based on the first event during presentation of the media content. The content identifier is to identify a second media event occurring during presentation of the media content at a second time after the first time. The content driven analyzer is to instruct the light-producing device to one of maintain the first lighting effect based on the second event or produce a second lighting effect based on the second event during presentation of the media content.
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