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    Audio matching using time-frequency onsets
    11.
    发明授权
    Audio matching using time-frequency onsets 有权

    公开(公告)号：US10283129B1

    公开(公告)日：2019-05-07

    申请号：US15273598

    申请日：2016-09-22

    Applicant: Google Inc.

    Inventor： Matthew Sharifi ,  Richard Francis Lyon

    IPC: G10L19/02 ,  G10L25/54

    Abstract: Systems and methods are provided herein relating to audio matching. Interest points that are onsets are generally very efficient in audio matching in that they are robust to multiple types of distortion. Prominent onsets can be detected within an audio signal excerpt as interest points and combined as a function of a set of interest points to form a descriptor. Descriptors associated with an audio signal excerpt that contain a set of prominent onsets as interest points can be used in matching the audio signal excerpt to an audio reference. The benefits in generating and using prominent onsets within descriptors improve the accuracy of an audio matching system.

    Audio localization using multilateration
    14.
    发明授权
    Audio localization using multilateration 有权

    公开(公告)号：US09618604B1

    公开(公告)日：2017-04-11

    申请号：US14133423

    申请日：2013-12-18

    Applicant: Google Inc.

    Inventor： Jason Holt ,  Richard Francis Lyon

    IPC: G01S5/00 ,  G01S5/26

    CPC classification number: G01S5/26 ,  G01S3/8083 ,  G01S5/10

    Abstract: Systems and methods for providing audio localization are provided. In some aspects, a method includes receiving phase offsets of a plurality of fixed transmitters from a source other than the plurality of fixed transmitters, detecting an audio localization signal from each of the plurality of fixed transmitters, determining a received phase of the audio localization signal from each of the plurality of fixed transmitters, determining time differences of flight from the mobile receiver to the plurality of fixed transmitters using the received phases, determining distance differences from the mobile receiver to the plurality of fixed transmitters using the time differences of flight, and determining the location of the mobile receiver by performing multilateration using the distance differences.

    Systems and methods facilitating selective removal of content from a mixed audio recording
    15.
    发明授权
    Systems and methods facilitating selective removal of content from a mixed audio recording 有权
    有助于从混合音频记录中选择性地去除内容的系统和方法

    公开(公告)号：US09373320B1

    公开(公告)日：2016-06-21

    申请号：US13972262

    申请日：2013-08-21

    Applicant: Google Inc.

    Inventor： Richard Francis Lyon ,  Ron Weiss ,  Thomas Chadwick Walters

    IPC: G10L21/028 ,  G10L13/033 ,  G10L21/02 ,  G10L21/0272 ,  G10L21/0308

    CPC classification number: G10L21/0356 ,  G10L21/02 ,  G10L21/0272 ,  G10L21/028 ,  G10L21/0308 ,  G10L21/0388 ,  G10L25/51

    Abstract: Systems and methods facilitating removal of content from audio files are described. A method includes identifying a sound recording in a first audio file, identifying a reference file having at least a defined level of similarity to the sound recording, and processing the first audio file to remove the sound recording and generate a second audio file. In some embodiments, winner-take-all coding and Hough transforms are employed for determining alignment and rate adjustment of the reference file in the first audio file. After alignment, the reference file is filtered in the frequency domain to increase similarity between the reference file and the sound recording. The frequency domain representation (FR) of the filtered version is subtracted from the FR first audio and the result converted to a time representation of the second audio file. In some embodiments, spectral subtraction is also performed to generate a further improved second audio file.

    Abstract translation: 描述了有助于从音频文件中移除内容的系统和方法。 一种方法包括：识别在第一音频文件中的声音记录，识别具有至少与所述声音记录的确定的相似度水平的参考文件，以及处理所述第一音频文件以去除所述声音记录并生成第二音频文件。 在一些实施例中，采用获胜者全部编码和霍夫变换来确定第一音频文件中的参考文件的对准和速率调整。 对齐后，参考文件在频域中进行过滤，以增加参考文件和录音之间的相似性。 从FR第一音频中减去滤波版本的频域表示（FR），并将结果转换为第二音频文件的时间表示。 在一些实施例中，还执行频谱减法以产生进一步改进的第二音频文件。

    PANORAMIC CAMERA WITH MULTIPLE IMAGE SENSORS USING TIMED SHUTTERS
    16.
    发明申请
    PANORAMIC CAMERA WITH MULTIPLE IMAGE SENSORS USING TIMED SHUTTERS 有权
    全景摄像机与多个图像传感器使用定时快门

    公开(公告)号：US20160142632A1

    公开(公告)日：2016-05-19

    申请号：US15006449

    申请日：2016-01-26

    Applicant: Google Inc.

    Inventor： Richard Francis Lyon ,  Gary Embler ,  Iain Richard Tyrone McClatchie ,  Jason Holt

    IPC: H04N5/232 ,  H04N5/235

    CPC classification number: H04N5/23238 ,  H04N5/23203 ,  H04N5/2353

    Abstract: The present invention relates to the field of panoramic still and motion photography. In a first embodiment, a camera apparatus for panoramic photography includes a first image sensor positioned to capture a first image. The first image sensor has a rolling-shutter readout arranged in portrait orientation. The camera apparatus also includes second image sensor positioned to capture a second image. The second image sensor has a rolling-shutter readout arranged in portrait orientation. Finally, the camera apparatus includes a controller configured to signal the second image sensor to start capturing the second image before the first image sensor finishes capturing the first image. At least a portion of the first image is in front of the second image relative to a forward direction of the camera apparatus.

    Abstract translation: 本发明涉及全景静止和运动摄影领域。 在第一实施例中，用于全景摄影的相机装置包括被定位成捕获第一图像的第一图像传感器。 第一个图像传感器具有以纵向方向布置的滚动快门读出器。 相机装置还包括定位成捕获第二图像的第二图像传感器。 第二图像传感器具有以纵向方向布置的滚动快门读出器。 最后，相机装置包括控制器，被配置为在第一图像传感器完成第一图像捕获之前，信号通知第二图像传感器开始捕获第二图像。 第一图像的至少一部分相对于相机装置的向前方向在第二图像的前面。

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