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    Method and Apparatus for Multi-Dimensional Content Search and Video Identification
    12.
    发明申请
    Method and Apparatus for Multi-Dimensional Content Search and Video Identification 有权
    用于多维内容搜索和视频识别的方法和装置

    公开(公告)号：US20160275084A1

    公开(公告)日：2016-09-22

    申请号：US15078056

    申请日：2016-03-23

    Applicant: Gracenote, Inc.

    Inventor： Jose Pio Pereira ,  Mihailo M. Stojancic ,  Shashank Merchant

    IPC: G06F17/30 ,  G06K9/00 ,  G06T7/00

    CPC classification number: G06F17/3079 ,  G06F17/30799 ,  G06F17/30805 ,  G06F17/30858 ,  G06F17/30949 ,  G06K9/00711 ,  G06K9/00718 ,  G06K9/00758 ,  G06K2009/00738 ,  G06T7/10 ,  G06T7/11 ,  G06T7/12 ,  G06T7/162 ,  G06T2207/10016 ,  G06T2207/20021

    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.

    Abstract translation: 描述了多维数据库以及关于多维数据库的索引和操作，其包括视频搜索应用或其他类似的序列或结构搜索。 遍历索引利用关于图像和视频序列或关于对象形状的高度辨别信息。 关键点周围的全局和本地签名用于紧凑和鲁棒的检索和感兴趣的图像或视频序列的辨别信息内容。 对于其他对象或结构，模式或结构的相关签名用于遍历索引。 遍历索引与距离测量一起存储在叶节点中，并在数据库中出现类似的图像。 在序列查询期间，计算单帧，帧序列和视频剪辑或其他对象或结构的相关分数。

    Media Content Identification on Mobile Devices
    13.
    发明申请
    Media Content Identification on Mobile Devices 审中-公开
    移动设备上的媒体内容标识

    公开(公告)号：US20160249093A1

    公开(公告)日：2016-08-25

    申请号：US15053064

    申请日：2016-02-25

    Applicant: Gracenote, Inc.

    Inventor： Mihailo M. Stojancic ,  Jose Pio Pereira ,  Peter Wendt ,  Shashank Merchant ,  Sunil Suresh Kulkarni

    IPC: H04N21/439 ,  H04N21/422 ,  H04N21/433 ,  H04N21/4223 ,  H04N21/845 ,  H04N21/84 ,  H04N1/32 ,  H04N21/414

    CPC classification number: H04N21/4394 ,  G10H1/0008 ,  G10H2210/041 ,  G10H2210/051 ,  G10H2240/141 ,  G10H2250/235 ,  H04N1/32 ,  H04N21/41407 ,  H04N21/42203 ,  H04N21/4223 ,  H04N21/4332 ,  H04N21/439 ,  H04N21/8352 ,  H04N21/84 ,  H04N21/8456

    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.

    Abstract translation: 移动设备实时响应媒体设备（如电视机）上呈现的媒体内容。 移动设备捕获其麦克风，相机或两者上的音频 - 视频内容的时间片段，并生成相应的音视频查询指纹。 查询指纹被发送到位于远程的搜索服务器或与移动设备上的搜索功能一起使用，用于内容搜索和识别。 提取音频特征，音频信号全局起始检测用于输入音频帧对齐。 额外的音频特征签名由本地音频帧发送，音频帧频域熵和频谱系数的最大变化产生。 视频帧被分析以在帧中找到电视屏幕，并且使用检测到的活动电视四边形来生成视频指纹以与音频指纹组合以用于更可靠的内容识别。

    Distributed and tiered architecture for content search and content monitoring
    15.
    发明授权
    Distributed and tiered architecture for content search and content monitoring 有权

    公开(公告)号：US09262421B2

    公开(公告)日：2016-02-16

    申请号：US14589366

    申请日：2015-01-05

    Applicant: Gracenote, Inc.

    Inventor： Jose Pio Pereira ,  Shashank Merchant ,  Prashant Ramanathan ,  Sunil Suresh Kulkarni ,  Mihailo Stojancic

    IPC: G06F17/30

    CPC classification number: G06F17/30038 ,  G06F17/3002 ,  G06F17/30029 ,  G06F17/30377 ,  G06F17/3056

    Abstract: An efficient large scale search system for video and multi-media content using a distributed database and search, and tiered search servers is described. Selected content is stored at the distributed local database and tier1 search server(s). Content matching frequent queries, and frequent unidentified queries are cached at various levels in the search system. Content is classified using feature descriptors and geographical aspects, at feature level and in time segments. Queries not identified at clients and tier1 search server(s) are queried against tier2 or lower search server(s). Search servers use classification and geographical partitioning to reduce search cost. Methods for content tracking and local content searching are executed on clients. The client performs local search, monitoring and/or tracking of the query content with the reference content and local search with a database of reference fingerprints. This shifts the content search workload from central servers to the distributed monitoring clients.

    Media Fingerprinting and Identification System
    16.
    发明申请
    Media Fingerprinting and Identification System 有权

    公开(公告)号：US20160034452A1

    公开(公告)日：2016-02-04

    申请号：US14885110

    申请日：2015-10-16

    Applicant: GRACENOTE, INC.

    Inventor： Prashant Ramanathan ,  Jose Pio Pereira ,  Shashank Merchant ,  Mihailo M. Stojancic

    IPC: G06F17/30

    CPC classification number: G06F17/30038 ,  G06F17/3002 ,  G06F17/3033 ,  G06F17/30598 ,  G06F17/30784 ,  G06F17/30799 ,  G06F17/30864 ,  G06F17/30949 ,  G06K9/00744 ,  G06K9/4671 ,  Y10S707/913

    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.

    Systems, methods, and apparatus to improve media identification
    17.
    发明授权
    Systems, methods, and apparatus to improve media identification 有权

    公开(公告)号：US12079277B2

    公开(公告)日：2024-09-03

    申请号：US17114230

    申请日：2020-12-07

    Applicant: Gracenote, Inc.

    Inventor： Jeffrey Scott ,  Matthew James Wilkinson ,  Robert Coover ,  Shashank Merchant

    IPC: G06F16/901 ,  G06F16/65 ,  G06F16/683 ,  G06F18/2115

    CPC classification number: G06F16/9014 ,  G06F16/65 ,  G06F16/683 ,  G06F18/2115 ,  G06F2218/16

    Abstract: Methods, apparatus, systems, and articles of manufacture are disclosed to improve media identification. An example apparatus includes a hash handler to generate a first set of reference matches by performing hash functions on a subset of media data associated with media to generate hashed media data based on a first bucket size, a candidate determiner to identify a second set of reference matches that include ones of the first set, the second set including ones having first quantities of hits that did not satisfy a threshold, determine second quantities of hits for ones of the second set by matching ones to the hash tables based on a second bucket size, and identify one or more candidate matches based on at least one of (1) ones of the first set or (2) ones of the second set, and a report generator to generate a report including a media identification.

    SYSTEMS, METHODS, AND APPARATUS TO IMPROVE MEDIA IDENTIFICATION
    18.
    发明申请
    SYSTEMS, METHODS, AND APPARATUS TO IMPROVE MEDIA IDENTIFICATION 有权

    公开(公告)号：US20210157839A1

    公开(公告)日：2021-05-27

    申请号：US17114230

    申请日：2020-12-07

    Applicant: Gracenote, Inc.

    Inventor： Jeffrey Scott ,  Matthew James Wilkinson ,  Robert Coover ,  Shashank Merchant

    IPC: G06F16/683 ,  G06F16/901 ,  G06K9/62 ,  G06F16/65 ,  G06K9/00

    Abstract: Methods, apparatus, systems, and articles of manufacture are disclosed to improve media identification. An example apparatus includes a hash handler to generate a first set of reference matches by performing hash functions on a subset of media data associated with media to generate hashed media data based on a first bucket size, a candidate determiner to identify a second set of reference matches that include ones of the first set, the second set including ones having first quantities of hits that did not satisfy a threshold, determine second quantities of hits for ones of the second set by matching ones to the hash tables based on a second bucket size, and identify one or more candidate matches based on at least one of (1) ones of the first set or (2) ones of the second set, and a report generator to generate a report including a media identification.

    Media content identification on mobile devices
    19.
    发明授权
    Media content identification on mobile devices 有权

    公开(公告)号：US10986399B2

    公开(公告)日：2021-04-20

    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 ,  H04N21/8352 ,  G10H1/00 ,  H04N21/414 ,  H04N21/422 ,  H04N21/4223 ,  H04N21/433 ,  H04N21/84 ,  H04N21/845 ,  H04N1/32

    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.

    DETECTION OF MUTE AND COMPENSATION THEREFOR DURING MEDIA REPLACEMENT EVENT
    20.
    发明申请
    DETECTION OF MUTE AND COMPENSATION THEREFOR DURING MEDIA REPLACEMENT EVENT 审中-公开

    公开(公告)号：US20200245024A1

    公开(公告)日：2020-07-30

    申请号：US16847532

    申请日：2020-04-13

    Applicant: Gracenote, Inc.

    Inventor： Markus K. Cremer ,  Shashank Merchant

    IPC: H04N21/44 ,  H04N21/442 ,  H04N21/439 ,  H04N21/462 ,  H04N21/81

    Abstract: In one aspect, an example method includes (i) presenting, by a playback device, first media content from a first source; (ii) encountering, by the playback device, a trigger to switch from presenting the first media content from the first source to presenting second media content from a second source; (iii) determining, by the playback device, that the playback device is presenting the first media content from the first source in a muted state; and (iv) responsive to encountering the trigger, and based on the determining that the playback device is presenting the first media content from the first source in a muted state, presenting, by the playback device, the second media content from the second source in the muted state.

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